There are currently 3769 plants in the list.
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Water Use |
Type |
Botanical Name |
Common Name |
Region 1 |
Region 2 |
Region 3 |
Region 4 |
Region 5 |
Region 6 |
SX | Abelia chinensisX | Chinese abelia | Moderate | Unknown | Unknown | Moderate | Not App. | Not App. |
SX | Abelia floribundaX | Mexican abelia | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
SX | Abelia mosanensis 'Fragrant Abelia'X | fragrant abelia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Abelia parvifolia (A. longituba)X | Schuman abelia | Unknown | Unknown | Unknown | Moderate | Unknown | Unknown |
GcXSX | Abelia x grandiflora, cvs.X | glossy abelia | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
SX | Abeliophyllum distichumX | forsythia | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Abelmoschus manihot (Hibiscus manihot)X | sunset muskmallow | Unknown | Unknown | Unknown | Low | Unknown | Unknown |
TX | Abies pinsapoX | Spanish fir | Low | Low | Low | Not App. | Not App. | Not App. |
TX | Abies spp. (CA native, non-native)X | fir | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Abronia latifolia X | yellow sand verbena | Very Low | Very Low | Very Low | Not App. | Unknown | Unknown |
PX | Abronia maritima X | sand verbena | Very Low | Very Low | Very Low | Not App. | Unknown | Unknown |
SX | Abutilon palmeriX | Indian mallow | Low | Low | Low | Low | Moderate | Moderate |
SX | Abutilon pictum thompsoniiX | variegated Chinese lantern | Moderate | High | Moderate | Moderate | Unknown | Unknown |
SX | Abutilon vitifoliumX | flowering maple | Moderate | Moderate | Moderate | Not App. | Unknown | Unknown |
SX | Abutilon x hybridum, cvs.X | flowering maple | Moderate | High | Moderate | Moderate | Not App. | Not App. |
SXTX | Acacia abyssinicaX | Abyssinian acacia | Not App. | Unknown | Not App. | Unknown | Not App. | Low |
SX | Acacia aneuraX | mulga | Not App. | Low | Low | Low | Not App. | Low |
SX | Acacia angustissimaX | white ball acacia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Acacia baileyanaX | Bailey acacia | Low | Low | Low | Low | Not App. | Not App. |
SXTX | Acacia berlandieriX | guajillo | Unknown | Unknown | Low | Moderate | Not App. | Low |
SX | Acacia boormaniiX | Snowy River wattle | Low | Low | Low | Low | Not App. | Low |
TX | Acacia cognata (A.subporosa)X | bower wattle | Low | Low | Moderate | Moderate | Not App. | Not App. |
SXTX | Acacia constrictaX | whitethorn acacia | Unknown | Low | Low | Low | Low | Low |
SX | Acacia covenyiX | blue bush | Unknown | Low | Low | Low | Unknown | Unknown |
SXTX | Acacia craspedocarpaX | leatherleaf acacia | Unknown | Unknown | Low | Unknown | Low | Low |
SX | Acacia cultriformisX | knife acacia | Low | Low | Low | Low | Not App. | Not App. |
TX | Acacia dealbataX | silver wattle | Very Low | Low | Low | Low | Not App. | Not App. |
TX | Acacia decurrensX | green wattle | Very Low | Low | Low | Low | Not App. | Not App. |
TX | Acacia eriolobaX | camel thorn | Unknown | Low | Low | Unknown | Unknown | Unknown |
TX | Acacia farnesiana (See Vachellia farnesiana)X | | | | | | | |
TX | Acacia farnesiana var. farnesiana (See Vachellia farnesiana farnesiana)X | | | | | | | |
SX | Acacia glaucopteraX | clay wattle | Low | Not App. | Low | Low | Not App. | Not App. |
SXTX | Acacia greggiiX | catclaw acacia | Low | Low | Low | Low | Low | Low |
SX | Acacia iteaphyllaX | willow wattle | Low | Low | Low | Low | Unknown | Unknown |
SX | Acacia linearifoliaX | golden wattle | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SXTX | Acacia longifoliaX | Sydney golden wattle | Low | Low | Low | Low | Not App. | Not App. |
TX | Acacia melanoxylonX | blackwood acacia | Very Low | Low | Low | Low | Not App. | Not App. |
SX | Acacia merinthophoraX | zig-zag wattle | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Acacia notabilisX | notable wattle | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Acacia pendulaX | weeping acacia | Low | Low | Moderate | Moderate | Not App. | Low |
TX | Acacia pennatulaX | pennatula acacia | Unknown | Unknown | Very Low | Unknown | Low | Low |
SXTX | Acacia podalyriifoliaX | pearl acacia | Very Low | Very Low | Low | Moderate | Not App. | Not App. |
TX | Acacia pravissimaX | ovens wattle | Low | Low | Low | Unknown | Unknown | Unknown |
GcXSX | Acacia redolensX | prostrate acacia | Very Low | Very Low | Very Low | Low | Low | Low |
SX | Acacia rigensX | needleleaf acacia | Not App. | Not App. | Unknown | Unknown | Unknown | Unknown |
TX | Acacia rigidulaX | rigidula acacia | Not App. | Low | Unknown | Unknown | Unknown | Unknown |
SXTX | Acacia salignaX | blue leaf wattle | Low | Low | Low | Low | Not App. | Low |
TX | Acacia schaffneriX | twisted acacia | Not App. | Low | Unknown | Unknown | Not App. | Low |
TX | Acacia stenophyllaX | eumong, shoestring acacia | Very Low | Low | Low | Low | Not App. | Low |
SXTX | Acacia subporosaX | subporosa acacia | Low | Not App. | Low | Unknown | Unknown | Unknown |
SX | Acacia tripteraX | spur wing wattle | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Acacia vestitaX | hairy wattle | Unknown | Low | Low | Low | Unknown | Unknown |
TX | Acacia willardiana X | palo blanco | Not App. | Not App. | Low | Low | Not App. | Low |
TX | Acacia wrightiiX | Wright acacia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Acaena inermis 'Purpurea'X | purple New Zealand burr | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Acaena pinnatifida var. californicaX | garnet flower | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Acalypha californicaX | copper leaf | Not App. | Not App. | Very Low | Low | Unknown | Unknown |
SX | Acalypha hispidaX | chenille plant | Not App. | Not App. | Moderate | Moderate | Unknown | Unknown |
SX | Acalypha monostachyaX | raspberry fuzzies | Not App. | Not App. | Unknown | Unknown | Not App. | Low |
SX | Acalypha wilkesianaX | copper leaf | Not App. | Not App. | Moderate | Not App. | Unknown | Unknown |
SX | Acanthus mollis (shade in desert) (dormant in summer, Central Valley)X | bear's breech | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Acanthus spinosus (dormant in summer, Central Valley, perennial in shade on coast)X | spiny bear's breach | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SXTX | Acca sellowiana (Feijoa sellowiana)X | pineapple guava | Moderate | Low | Low | Moderate | Not App. | Moderate |
TX | Acer barbinerveX | bearded maple | Unknown | Unknown | Unknown | Unknown | Unknown | Not App. |
TX | Acer buergerianumX | trident maple | Moderate | Moderate | Moderate | Not App. | Unknown | Not App. |
TX | Acer campestreX | hedge maple | Moderate | Moderate | Unknown | Unknown | Unknown | Not App. |
SXTX | Acer circinatumX | vine maple | Moderate | High | High | Not App. | Unknown | Not App. |
TX | Acer crataegifoliumX | hawthorn maple | Moderate | Unknown | Unknown | Unknown | Unknown | Not App. |
TX | Acer davidiiX | Pere David's maple | Moderate | Unknown | Unknown | Not App. | Unknown | Not App. |
TX | Acer ginnalaX | amur maple | Moderate | Moderate | Not App. | Unknown | Unknown | Not App. |
TX | Acer glabrumX | mountain maple | Moderate | Unknown | Not App. | Not App. | Unknown | Not App. |
TX | Acer grandidentatumX | bigtooth maple | Moderate | Moderate | Not App. | Not App. | Unknown | Not App. |
TX | Acer griseumX | paperbark maple | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Acer japonicumX | fernleaf maple | Moderate | Moderate | Unknown | Not App. | Unknown | Not App. |
TX | Acer macrophyllumX | big leaf maple | Moderate | High | Moderate | High | Not App. | Not App. |
TX | Acer miyabeiX | miyabe maple | Moderate | Unknown | Unknown | Unknown | Unknown | Not App. |
TX | Acer negundoX | box elder | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Acer oblongumX | Himalayan maple | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Acer palmatumX | Japanese maple | Moderate | Moderate | Moderate | High | Not App. | Not App. |
TX | Acer paxiiX | evergreen maple | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Acer pentaphyllumX | Asian maple | Moderate | Unknown | Moderate | Not App. | Unknown | Not App. |
TX | Acer platanoidesX | Norway maple | Moderate | Moderate | Moderate | High | Not App. | Not App. |
TX | Acer pseudoplatanusX | sycamore maple | Moderate | Unknown | Unknown | Unknown | Unknown | Not App. |
TX | Acer rubrumX | red maple | Moderate | Moderate | High | High | Not App. | Not App. |
TX | Acer rufinerve X | redvein maple | Moderate | Unknown | Unknown | Unknown | Unknown | Not App. |
TX | Acer saccharinumX | silver maple | Moderate | Moderate | High | High | Not App. | Not App. |
TX | Acer saccharumX | sugar maple | Moderate | Not App. | Not App. | Not App. | Not App. | Not App. |
TX | Acer shirasawanumX | full moon maple | Moderate | Unknown | Not App. | Not App. | Unknown | Not App. |
TX | Acer tataricumX | tatar maple | Moderate | Moderate | Not App. | Unknown | Unknown | Unknown |
TX | Acer tegmentosumX | Manchurian striped maple | Moderate | Unknown | Not App. | Unknown | Unknown | Not App. |
TX | Acer truncatumX | Chinese maple | Moderate | Moderate | Not App. | High | Not App. | Not App. |
TX | Acer tschonoskii 'Koreanum'X | Korean striped bark maple | Unknown | Unknown | Unknown | Unknown | Unknown | Not App. |
TX | Acer x freemaniiX | Freeman maple | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Achillea ageratifoliaX | Greek yarrow | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Achillea clavennaeX | silvery yarrow | Low | Low | Low | Low | Not App. | Not App. |
PX | Achillea filipendulinaX | fern leaf yarrow | Low | Low | Low | Low | Unknown | Unknown |
GcXPX | Achillea millefolium (non-native hybrids)X | yarrow (non-native hybrids) | Moderate | Low | Moderate | Low | Low | Low |
GcXPX | Achillea millefolium (CA native cvs.)X | yarrow | Low | Low | Low | Low | Low | Low |
PX | Achillea sibericaX | Siberian yarrow | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
GcXPX | Achillea tomentosaX | woolly yarrow | Low | Low | Moderate | Moderate | Unknown | Unknown |
PX | Achillea x kellereriX | kellerii achillea | Moderate | Low | Low | Unknown | Unknown | Unknown |
PX | Achillea x lewisiiX | dwarf yarrow | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Acinos alpinus X | alpine rock thyme | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Acmena smithii (See Syzygium smithii)X | | | | | | | |
PX | Acmispon glaber (Lotus scoparius)X | deer weed | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Acmispon rigidus (Lotus rigidus)X | rock pea | Unknown | Unknown | Unknown | Low | Unknown | Unknown |
SX | Acnistus australis (Iochroma australis)X | blue angels's trumpet | Moderate | Moderate | Moderate | Not App. | Unknown | Unknown |
PmXTX | Acoelorraphe wrightiiX | Everglades palm | Unknown | Unknown | High | Moderate | Unknown | Unknown |
PX | Aconitum cammarum X | bicolor monkshood | Unknown | Moderate | Unknown | Not App. | Unknown | Unknown |
PX | Aconitum fischeriX | monk's hood | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
PX | Aconitum napellusX | garden monkshood | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
PX | Acorus calamus 'Variegatus'X | sweet flag | High | High | High | High | Not App. | Not App. |
PX | Acorus gramineusX | sweet flag | High | High | High | High | Not App. | Not App. |
TX | Acrocarpus fraxinifoliusX | pink cedar | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Actaea rubra (shade)X | snake berry | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
PX | Actaea simplex (Cimicifuga ramosa) (shade)X | snakeroot/bugbane | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
V | Actinidia deliciosa X | kiwi | High | High | High | High | Not App. | Not App. |
V | Actinidia kolomiktaX | variegated kiwi | Moderate | Unknown | Not App. | Unknown | Unknown | Unknown |
SX | Adenanthos cuneatus 'Coral Drift'X | flame bush | Low | Unknown | Low | Unknown | Unknown | Unknown |
SX | Adenanthos detmoldii 'Metallica'X | yellow jugflower | Low | Unknown | Low | Unknown | Unknown | Unknown |
SX | Adenanthos drummondiiX | woolly bush | Low | Unknown | Low | Low | Unknown | Unknown |
SX | Adenanthos meisneriX | woollybush | Low | Unknown | Low | Unknown | Unknown | Unknown |
SX | Adenanthos sericeusX | coastal woolly bush | Low | Unknown | Low | Not App. | Not App. | Not App. |
SX | Adenanthos x cunninghamiiX | Albany woolly bush | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Adenium obesumX | desert rose | Not App. | Not App. | Not App. | Low | Not App. | Low |
PX | Adenophora bulleyanaX | ladybells | Moderate | High | Moderate | Unknown | Unknown | Unknown |
PX | Adenophora liliifoliaX | lilyleaf ladybells | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Adenophora takedae 'Alba'X | lady bells | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXSX | Adenostoma fasciculatumX | chamise | Very Low | Very Low | Very Low | Very Low | Not App. | Not App. |
SXTX | Adenostoma sparsifoliumX | red shanks/ribbonwood | Very Low | Unknown | Very Low | Very Low | Not App. | Not App. |
PX | Adiantum spp. (shade) CA native, non-nativeX | maidenhair fern | High | High | High | High | Moderate | Moderate |
PX | Aechmea recurvata var. recurvata (shade)X | false tillandsia | Low | Not App. | Low | Unknown | Unknown | Unknown |
PXSuX | Aeonium spp. X | Canary Island rose | Low | Low | Low | Low | Not App. | Not App. |
TX | Aesculus californica X | California buckeye | Very Low | Very Low | Very Low | Low | Not App. | Not App. |
SXTX | Aesculus paviaX | red buckeye | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Aesculus x arnoldiana 'Autumn Splendor'X | Autumn Splendor horse chestnut | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Aesculus x carneaX | red horsechestnut | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Aethionema armenum 'Warley Rose'X | Warley rose stone cress | Moderate | Low | Unknown | Unknown | Unknown | Unknown |
TX | Afrocarpus falcatus (Podocarpus falcatus)X | yellowwood | Moderate | Unknown | Moderate | Moderate | Unknown | Moderate |
TX | Afrocarpus gracilior (Podocarpus gracilior)X | African fern pine | Moderate | Moderate | Moderate | Moderate | Unknown | Moderate |
PX | Agapanthus africanusX | lily-of-the-Nile | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Agapanthus campanulatus X | bell agapanthus | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Agapanthus inapertus majorX | drooping agapanthus | Low | Low | Moderate | Moderate | Unknown | Unknown |
PX | Agapanthus praecox spp. orientalis, cvs.X | agapanthus | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Agapetes 'Ludgvan Cross'X | Ludgvan cross agapetes | Moderate | Unknown | Moderate | High | Unknown | Unknown |
SX | Agapetes serpens (Pentapterygium)X | agapetes (serpens) | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Agastache auranticaX | giant hyssop | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Agastache barberiX | pink hyssop | Low | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Agastache canaX | mosquito plant | Low | Low | Moderate | Moderate | Unknown | Unknown |
PX | Agastache coccinea pinkX | agastache | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Agastache mexicanaX | Mexican giant hyssop | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Agastache rugosaX | wrinkled agastache | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Agastache rupestrisX | licorice mint | Low | Low | Moderate | Moderate | Unknown | Unknown |
TX | Agathis australisX | Australian agathis/ kauri | Moderate | Not App. | Moderate | Not App. | Not App. | Not App. |
TX | Agathis robustaX | Queensland kauri | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
PXSX | Agave americana (thick-leaved relatives, CA native, non-native)X | agave | Very Low | Very Low | Very Low | Very Low | Very Low | Very Low |
PXSX | Agave attenuata (thin-leaved relatives, CA native, non-native)X | agave | Low | Low | Low | Low | Low | Low |
PX | Ageratina occidentalisX | western snake root | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Agonis flexuosa, cvs.X | peppermint tree | Low | Not App. | Low | Low | Not App. | Not App. |
GX | Agropyron magellanicumX | blue wheat grass | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Ailanthus altissimaX | tree of heaven | Very Low | Very Low | Low | Low | Low | Low |
GcXPX | Ajuga reptans (shade)X | carpet bugle | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
V | Akebia quinataX | fiveleaf akebia | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Alangium platanifoliumX | lobe-leafed alangium | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Albizia distachyaX | plume albizia | Low | Not App. | Low | Not App. | Not App. | Not App. |
TX | Albizia julibrissinX | silk tree | Low | Low | Low | Low | Moderate | Moderate |
| Albuca humilisX | albuca (humilis) | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
BuX | Albuca juncifoliaX | rush leaved albuca | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Albuca nelsoniiX | Natal albuca | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
BuX | Albuca shawiiX | small yellow albuca | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Alcea rosea cvs.X | perennial hollyhock | Low | Low | Moderate | Moderate | Not App. | Not App. |
PX | Alchemilla alpinaX | mountain lady's mantle | Moderate | Low | Not App. | Not App. | Not App. | Not App. |
PX | Alchemilla mollisX | lady's mantle | Moderate | Low | Not App. | Not App. | Not App. | Not App. |
TX | Alectryon excelsusX | titoki | Moderate | Not App. | Moderate | Not App. | Not App. | Not App. |
V | Allamanda catharticaX | golden trumpet vine | Not App. | Not App. | Moderate | Not App. | Not App. | Not App. |
SX | Allamanda nerifoliaX | yellow bell | Not App. | Not App. | Moderate | Not App. | Unknown | Unknown |
V | Allamanda williamsiiX | golden trumpet vine | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
BuX | Allium spp.X | allium | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
BuX | Allium spp. mostly from CA, MediterraneanX | allium | Very Low | Very Low | Low | Very Low | Low | Moderate |
TX | Allocasuarina torulosaX | forest oak | Low | Unknown | Low | Not App. | Unknown | Unknown |
TX | Allocasuarina verticillata (Casuarina stricta)X | coast beefwood | Low | Low | Low | Low | Moderate | Moderate |
SuXTX | Alluaudia proceraX | Madagascan ocotillo | Not App. | Not App. | Very Low | Unknown | Unknown | Unknown |
TX | Alnus cordataX | Italian alder | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Alnus glutinosaX | black alder | Moderate | Moderate | Moderate | High | Not App. | Not App. |
TX | Alnus incanaX | thinleaf alder | Unknown | Not App. | Not App. | Not App. | Not App. | Not App. |
TX | Alnus oregona (See Alnus rubra)X | | | | | | | |
TX | Alnus rhombifoliaX | white alder | High | High | High | High | High | Not App. |
TX | Alnus rubra (A. oregona)X | red alder | High | High | High | High | Not App. | Not App. |
PX | Alocasia spp.X | elephant's ear | High | High | High | High | Not App. | Not App. |
SXSuXTX | Aloe spp. (CA native, non-native)X | aloe | Low | Low | Low | Low | Not App. | Low |
PX | Alonsoa meridionalisX | mask flower | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Alonsoa warscewicziiX | alonsoa | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GX | Alopecurus pratensis 'Aureus'X | golden foxtail | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Aloysia gratissimaX | white brush | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Aloysia lycioidesX | Sonoran bee bush | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Aloysia macrostachyaX | aloysia | Unknown | Unknown | Unknown | Unknown | Low | Low |
SX | Aloysia triphyllaX | lemon verbena | Low | Low | Low | Low | Low | Low |
SX | Aloysia virgataX | sweet almond bush | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Aloysia wrightiiX | origanillo | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Alpinia purpurataX | red ginger | High | High | High | High | Not App. | Not App. |
PX | Alpinia sanderaeX | variegated ginger | High | High | High | High | Not App. | Not App. |
PXSX | Alpinia zerumbetX | shell ginger | High | High | High | High | Not App. | Not App. |
BuX | Alstroemeria ligtu hybrids, cvs.X | alstroemeria (ligtu) | Low | Low | Unknown | Low | Unknown | Not App. |
BuX | Alstroemeria spp. hybrids, cvs.X | Peruvian lily | Moderate | Moderate | Moderate | Low | Unknown | Moderate |
SX | Alyogyne hakeifoliaX | red centered hibiscus | Not App. | Not App. | Low | Low | Not App. | Not App. |
SX | Alyogyne huegeliiX | blue hibiscus | Low | Low | Low | Low | Not App. | Moderate |
PX | Alyssum montanumX | mountain alyssum | Low | Low | Moderate | Moderate | Not App. | Not App. |
BuX | Amaryllis belladonnaX | naked lady | Very Low | Very Low | Very Low | Very Low | Low | Low |
PX | Ambrosia chamissonisX | sand bur | Low | Low | Low | Not App. | Unknown | Unknown |
SX | Ambrosia deltoideaX | triangleleaf bursage | Unknown | Low | Unknown | Unknown | Low | Low |
SX | Ambrosia dumosaX | white bursage | Unknown | Unknown | Not App. | Not App. | Low | Low |
SX | Ambrosia monogyra (Hymenoclea monogyra)X | burrow bush | Unknown | Unknown | Very Low | Very Low | Very Low | Very Low |
GcX | Ambrosia pumilaX | San Diego ragweed | Unknown | Very Low | Very Low | Very Low | Unknown | Unknown |
SX | Amelanchier alnifoliaX | western service berry | Moderate | Moderate | Unknown | Not App. | Unknown | Unknown |
SX | Amelanchier utahensisX | Utah service berry | Moderate | Moderate | Unknown | Low | Unknown | Unknown |
SX | Amelanchier x grandifloraX | apple service berry | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Amorpha californica (shade)X | California false indigo bush | Low | Unknown | Low | Low | Unknown | Unknown |
SX | Amorpha fruticosaX | false indigobush | Unknown | Unknown | Moderate | Low | Moderate | Unknown |
V | Ampelopsis brevipedunculataX | blueberry creeper | Moderate | Moderate | Not App. | Moderate | Moderate | Moderate |
PX | Amsonia grandifloraX | large flowered blue star | Low | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Amsonia hubrichtiiX | Arkansas blue star | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Amyris madrensisX | mountain torchwood | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Amyris texanaX | Texas torchwood | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Anacyclus pyrethrum depressusX | Mount Atlas daisy | Moderate | Moderate | Low | Low | Unknown | Unknown |
PX | Anagallis monellii X | flax leaf pimpernel | Moderate | Not App. | Moderate | Not App. | Not App. | Not App. |
PX | Anaphalis margaritaceaX | pearly everlasting | Low | Moderate | Low | Low | Unknown | Unknown |
GcXSX | Andromeda polifoliaX | bog rosemary | High | High | Not App. | Not App. | Not App. | Not App. |
GX | Andropogon gerardiiX | big bluestem | Unknown | Unknown | Unknown | Unknown | Low | Unknown |
GX | Andropogon scopariusX | little bluestem | Unknown | Unknown | Unknown | Unknown | Low | Unknown |
PX | Androsace lanuginosaX | rock jasmine | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
GX | Anemanthele lessoniana (Stipa arundinacea)X | New Zealand wind grass | Moderate | Moderate | Low | Unknown | Unknown | Unknown |
BuX | Anemone coronariaX | poppy-flowered anemone | Low | Moderate | Unknown | Very Low | Unknown | Unknown |
PX | Anemone hupehensis var. japonica (shade)X | Japanese anemone | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Anemone multifidaX | Pacific anemone | Moderate | Unknown | Moderate | Unknown | Not App. | Not App. |
PX | Anemone pulsatilla (See Pulsatilla vulgaris)X | | | | | | | |
PX | Anemone rivularisX | Himalayan windflower | Moderate | Unknown | Moderate | Unknown | Not App. | Not App. |
PX | Anemone sylvestrisX | snowdrop windflower | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
PX | Anemone x hybridaX | Japanese anemone | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
V | Anemopaegma chamberlayniiX | yellow trumpet vine | Unknown | Unknown | Moderate | Moderate | Not App. | Not App. |
GcXPX | Anemopsis californicaX | yerba mansa | Unknown | Moderate | Moderate | Moderate | High | Unknown |
PX | Angelica hendersoniiX | coast angelica | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Angelica pachycarpaX | shiny leaf angelica | Low | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Angelonia angustifoliaX | angel flower | Unknown | Not App. | Moderate | Unknown | Unknown | Unknown |
TX | Angophora costata (Angophora cordifolia)X | gum myrtle | Low | Not App. | Low | Moderate | Not App. | Not App. |
PX | Anigozanthos bicolorX | two-colored kangaroo paw | Low | Unknown | Moderate | Low | Not App. | Not App. |
PX | Anigozanthos flavidusX | kangaroo paw | Low | Low | Moderate | Low | Not App. | Not App. |
PX | Anigozanthos hybrids, cvs.X | kangaroo paw | Low | Low | Moderate | Low | Not App. | Not App. |
PX | Anigozanthos manglesiiX | red and green kangaroo paw | Low | Unknown | Moderate | Low | Not App. | Not App. |
PX | Anigozanthos rufusX | red kangaroo paw | Low | Unknown | Moderate | Low | Not App. | Not App. |
PX | Anigozanthos viridisX | green kangaroo paw | Low | Low | Moderate | Low | Not App. | Not App. |
SX | Anisacanthus spp.X | desert honeysuckle | Unknown | Unknown | Low | Low | Low | Low |
PX | Anisodontea hybrids, cvs.X | mallow | Moderate | Low | Moderate | Moderate | Not App. | Not App. |
SX | Anisodontea scabrosaX | false mallow | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Anisodontea x hypomandarumX | South African mallow | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
TX | Annona cherimolaX | cherimoya | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Antennaria microphyllaX | little leaf pussy toes | Unknown | Moderate | Unknown | Not App. | Unknown | Unknown |
PX | Antennaria roseaX | pussy toes | Low | Low | Unknown | Not App. | Unknown | Unknown |
PX | Anthemis carpatica 'Karpatenschnee'X | dwarf chamomile | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
PX | Anthemis tinctoria (See Cota tinctoria)X | | | | | | | |
GX | Anthoxanthum nitens ssp. nitens (Hierochloe odorata)X | vanilla grass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Anthoxanthum occidentale (Hierochloe occidentalis)X | sweet grass | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
GcXV | Antigonon leptopusX | coral vine | Moderate | Not App. | Low | Low | Not App. | Low |
PX | Antirrhinum hispanicumX | Spanish snapdragon | Low | Low | Low | Low | Unknown | Unknown |
PX | Antirrhinum multiflorumX | multiflowered snapdragon | Unknown | Unknown | Moderate | Low | Unknown | Unknown |
PX | Antirrhinum sempervirensX | silver snapdragon | Low | Moderate | Unknown | Unknown | Unknown | Unknown |
V | Aphanopetalum resinosum 'Gossamer Wings'X | shiny-leaved gum vine | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Apocynum cannabinumX | Indian hemp | Unknown | Moderate | Unknown | Low | Unknown | Unknown |
GcXPX | Aptenia 'Red Apple'X | ice plant (Red Apple) | Low | Low | Low | Low | Not App. | Not App. |
GcXPX | Aptenia cordifoliaX | ice plant (Aptenia) | Low | Low | Low | Low | Not App. | Not App. |
PX | Aquilegia spp. (CA native, non-native spp.)X | columbine | Low | Low | Low | Moderate | Moderate | Moderate |
PX | Arabis spp.X | rockcress | Low | Moderate | Moderate | Not App. | Not App. | Not App. |
PX | Arachniodes davalliaeformis (nomen. unresolved)X | shiny bristle fern | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Arachniodes simplicior (shade)X | Indian holly fern | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Arachniodes standishii (shade)X | upside-down fern | Unknown | High | Moderate | Unknown | Unknown | Unknown |
PX | Aralia californica (shade)X | elk clover | Moderate | High | High | Not App. | Unknown | Unknown |
SXTX | Aralia spinosaX | Hercules's club | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
TX | Araucaria araucanaX | monkey puzzle tree | Low | Moderate | Not App. | Moderate | Not App. | Not App. |
TX | Araucaria bidwilliiX | bunya-bunya | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Araucaria columnaris (A. cookii)X | New Caledonian pine | High | Unknown | Moderate | Moderate | Not App. | Not App. |
TX | Araucaria heterophyllaX | Norfolk Island pine | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Arbutus 'Marina'X | Marina arbutus | Low | Low | Low | Moderate | Not App. | Not App. |
TX | Arbutus andrachneX | Greek strawberry tree | Low | Low | Low | Low | Unknown | Unknown |
TX | Arbutus menziesii (shade in Central Valley)X | madrone | Low | Low | Not App. | Not App. | Not App. | Not App. |
TX | Arbutus texanaX | Texas madrone | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SXTX | Arbutus unedoX | strawberry tree | Low | Low | Low | Low | Moderate | Moderate |
PmXTX | Archontophoenix cunninghamianaX | king palm | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Arctostaphylos 'Austin Griffiths'X | Austin Griffiths manzanita | Low | Low | Low | Low | Not App. | Not App. |
GcXSX | Arctostaphylos 'Emerald Carpet'X | Emerald Carpet manzanita | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Arctostaphylos 'John Dourley'X | John Dourley manzanita | Low | Low | Low | Low | Not App. | Not App. |
SX | Arctostaphylos 'Lester Rowntree'X | Lester Rountree manzanita | Low | Low | Low | Low | Not App. | Not App. |
GcXSX | Arctostaphylos 'Pacific Mist'X | Pacific Mist manzanita | Low | Moderate | Low | Low | Not App. | Not App. |
SX | Arctostaphylos 'Sunset'X | Sunset manzanita | Low | Low | Low | Low | Not App. | Not App. |
GcXSX | Arctostaphylos 'Winterglow'X | Winter Glow manzanita | Moderate | Unknown | Low | Moderate | Not App. | Not App. |
SX | Arctostaphylos bakeri 'Louis Edmunds'X | Louis Edmunds manzanita | Low | Low | Low | Low | Not App. | Not App. |
SX | Arctostaphylos canescensX | hoary manzanita | Very Low | Unknown | Low | Unknown | Not App. | Not App. |
SX | Arctostaphylos catalinaeX | Catalina manzanita | Unknown | Unknown | Very Low | Very Low | Not App. | Not App. |
SX | Arctostaphylos densiflora cvs.X | manzanita cvs., e.g., Howard McMinn | Low | Low | Low | Low | Not App. | Not App. |
GcXSX | Arctostaphylos edmundsii 'Bert Johnson'X | Bert Johnson manzanita | Low | Moderate | Low | Moderate | Not App. | Not App. |
GcXSX | Arctostaphylos edmundsii 'Big Sur'X | Big Sur manzanita | Low | Moderate | Low | Low | Not App. | Not App. |
GcXSX | Arctostaphylos edmundsii 'Rosy Dawn'X | Rosy Dawn manzanita | Low | Moderate | Low | Not App. | Not App. | Not App. |
GcXSX | Arctostaphylos edmundsii cvs.X | manzanita Carmel Sur, etc. | Moderate | Moderate | Low | Low | Not App. | Not App. |
SX | Arctostaphylos glandulosaX | Eastwood's manzanita | Very Low | Unknown | Very Low | Low | Not App. | Not App. |
SXTX | Arctostaphylos glaucaX | big berry manzanita | Very Low | Not App. | Very Low | Very Low | Not App. | Not App. |
GcXSX | Arctostaphylos hookeri 'Buxifolia'X | Buxifolia manzanita | Low | Moderate | Low | Low | Not App. | Not App. |
GcXSX | Arctostaphylos hookeri 'Ken Taylor'X | Ken Taylor manzanita | Low | Unknown | Low | Low | Not App. | Not App. |
GcXSX | Arctostaphylos hookeri 'Monterey Carpet'X | Monterey carpet manzanita | Low | Unknown | Low | Low | Not App. | Not App. |
GcXSX | Arctostaphylos hookeri 'Wayside'X | Wayside manzanita | Low | Low | Low | Low | Not App. | Not App. |
SX | Arctostaphylos hookeri (shrub cvs.)X | manzanita (shrub cvs.) | Low | Low | Low | Low | Not App. | Not App. |
SX | Arctostaphylos insularisX | island manzanita | Low | Unknown | Very Low | Low | Not App. | Not App. |
SXTX | Arctostaphylos manzanitaX | common manzanita | Very Low | Very Low | Low | Low | Not App. | Not App. |
SXTX | Arctostaphylos manzanita cvs.X | manzanita cvs., Dr. Hurd, St. Helena | Low | Very Low | Low | Low | Not App. | Not App. |
SX | Arctostaphylos morroensisX | Morro manzanita | Low | Unknown | Low | Low | Not App. | Not App. |
SX | Arctostaphylos nummulariaX | Ft. Bragg manzanita | Moderate | Unknown | Not App. | Not App. | Not App. | Not App. |
SX | Arctostaphylos otayensisX | Otay manzanita | Unknown | Unknown | Very Low | Very Low | Not App. | Not App. |
SX | Arctostaphylos pajaroensis cvs.X | Pajaro manzanita | Moderate | Low | Low | Low | Not App. | Not App. |
SX | Arctostaphylos pringleiX | pink bract manzanita | Very Low | Unknown | Very Low | Not App. | Not App. | Not App. |
SX | Arctostaphylos pungensX | Mexican manzanita | Unknown | Unknown | Very Low | Very Low | Not App. | Not App. |
SX | Arctostaphylos purissima 'Vandenberg'X | Vandenberg manzanita | Low | Unknown | Low | Unknown | Not App. | Not App. |
SX | Arctostaphylos refugioensisX | Refugio manzanita | Low | Unknown | Very Low | Low | Not App. | Not App. |
SX | Arctostaphylos rudis cvs.X | shagbark manzanita | Low | Low | Very Low | Low | Not App. | Not App. |
SX | Arctostaphylos silvicolaX | ghostly manzanita | Low | Unknown | Low | Low | Not App. | Not App. |
GcX | Arctostaphylos uva-ursi 'Green Supreme'X | Green Supreme manzanita | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
GcX | Arctostaphylos uva-ursi 'Massachusetts'X | Massachussetts manzanita | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
GcX | Arctostaphylos uva-ursi 'Point Reyes'X | Pt. Reyes manzanita | Low | Moderate | Low | Not App. | Not App. | Not App. |
GcX | Arctostaphylos uva-ursi 'Radiant'X | Radiant manzanita | Low | Moderate | Unknown | Not App. | Not App. | Not App. |
GcX | Arctostaphylos uva-ursi 'San Bruno Mountain'X | San Bruno Mtn manzanita | Low | Moderate | Unknown | Not App. | Not App. | Not App. |
GcX | Arctostaphylos uva-ursi 'Tom's Point'X | Tom's Point manzanita | Low | Moderate | Unknown | Not App. | Not App. | Not App. |
GcX | Arctostaphylos uva-ursi 'Wood's Compact'X | Wood's compact manzanita | Low | Moderate | Low | Not App. | Not App. | Not App. |
SX | Arctostaphylos viridissima 'White Cloud'X | White Cloud manzanita | Low | Unknown | Low | Low | Not App. | Not App. |
SX | Arctostaphylos viscidaX | whiteleaf manzanita | Very Low | Low | Not App. | Not App. | Not App. | Not App. |
GcXPX | Arctotheca prostrata (A.calendula)X | cape weed | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Arctotis hybridsX | African daisy | Low | Moderate | Low | Low | Not App. | Unknown |
GcX | Ardisia japonicaX | Japanese ardesia, marlberry | Moderate | Not App. | High | Not App. | Not App. | Not App. |
PmXTX | Arecastrum romanzoffianum (See Syagrus romanzoffiana)X | | | | | | | |
PX | Arenaria montanaX | sandwort | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcX | Arenaria spp. (See Sagina)X | Irish, Scotch moss | | | | | | |
PmXSXTX | Arenga engleriX | Formosa sugar palm | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PmXSXTX | Arenga micranthaX | Tibetan sugar palm | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Argemone corymbosaX | prickly poppy | Very Low | Low | Very Low | Low | Low | Low |
PX | Argemone munitaX | prickly poppy | Very Low | Low | Very Low | Low | Unknown | Unknown |
PX | Argemone pleiacanthaX | southwestern prickly poppy | Very Low | Unknown | Very Low | Unknown | Unknown | Unknown |
PX | Argyranthemum frutescens, cvs. (Chrysanthemum frutescens, shade in desert)X | Marguerite daisy | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Argyranthemum gracileX | 'Chelsea Girl,' other cvs. | Low | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Aristea eckloniiX | little Tyler, blue stars | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Aristea majorX | tall aristea | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GX | Aristida purpureaX | purple three-awn | Low | Very Low | Very Low | Low | Low | Unknown |
| Aristolochia californica (shade)X | California Dutchman's pipe | Low | Low | Moderate | Low | Not App. | Not App. |
V | Aristolochia duriorX | Dutchman's pipe | Moderate | Moderate | Unknown | Moderate | Not App. | Not App. |
V | Aristolochia giganteaX | pelican flower | Not App. | Not App. | Unknown | Moderate | Unknown | Unknown |
V | Aristolochia littoralis (elegans)X | calico flower | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
V | Aristolochia macrouraX | Brazilian Dutchman's pipe | Not App. | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Armeria alliacea (shade in South Inland)X | sea pink | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Armeria caespitosa (A. juniperifolia)X | thrift | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Armeria maritimaX | sea pink | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Armeria pseudarmeriaX | sea pink | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Armeria setaceaX | thrift | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Arnica montanaX | arnica | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Arnica parryi X | Parry's arnica | Unknown | Unknown | Unknown | Not App. | Unknown | Unknown |
SX | Aronia arbutifolia 'Brilliantissima'X | red chokeberry | Unknown | Low | Unknown | Not App. | Unknown | Unknown |
SX | Aronia melanocarpa var.elataX | black chokeberry | Unknown | Unknown | Unknown | Not App. | Unknown | Unknown |
GX | Arrhenatherum elatiusX | tall oat grass | Unknown | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Artemisia 'Powis Castle'X | Powis Castle sagebrush | Low | Moderate | Moderate | Low | Moderate | Moderate |
SX | Artemisia arborescensX | large wormwood | Low | Unknown | Low | Low | Moderate | Moderate |
SX | Artemisia californicaX | California sagebrush | Low | Low | Very Low | Very Low | Unknown | Unknown |
GcX | Artemisia californica 'Canyon Gray'X | Canyon Gray sagebrush | Low | Low | Low | Very Low | Unknown | Unknown |
GcX | Artemisia californica 'Montara'X | Montara sagebrush | Low | Low | Low | Very Low | Unknown | Unknown |
PX | Artemisia douglasianaX | California mugwort | Low | Low | Moderate | Low | Unknown | Unknown |
SX | Artemisia filifoliaX | sand sagebrush | Low | Low | Unknown | Unknown | Very Low | Low |
GcXPX | Artemisia spp. (herbaceous)X | angel's hair | Low | Low | Low | Low | Moderate | Moderate |
GcXSX | Artemisia spp. (shrubby)X | sagebrush | Very Low | Low | Low | Low | Low | Low |
SX | Artemisia tridentataX | big sagebrush | Very Low | Very Low | Very Low | Very Low | Low | Not App. |
PX | Arthropodium cirrhatumX | star lily | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
PX | Arum italicumX | Italian arum | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Aruncus dioicusX | goat's beard | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Arundinaria (See Chimonobambusa, Drepanostachyum, Pleioblastus, Semiarundinaria, Thamnocalamus, other genera)X | | | | | | | |
GX | Arundinaria giganteaX | cane reed | Low | Low | Moderate | Moderate | Not App. | Unknown |
GX | Arundo formosana 'Oriental Gold'X | Oriental gold giant reed | High | Unknown | Moderate | Moderate | Unknown | Unknown |
V | Asarina antirrhinifloraX | snapdragon vine | Moderate | Unknown | Moderate | Low | Not App. | Moderate |
V | Asarina barclaianaX | twining snapdragon | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
V | Asarina erubescens (Maurandya) (See Lophospermum erubescens)X | | | | | | | |
V | Asarina procumbensX | twining snapdragon | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Asarina scandens cvs.X | creeping snapdragon | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXPX | Asarum caudatumX | wild ginger | Moderate | Moderate | High | Not App. | Not App. | Not App. |
GcXPX | Asarum hartwegii (shade)X | marbled wild ginger | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
GcXPX | Asarum lemmonii (shade)X | Lemmon's wild ginger | Moderate | Moderate | Unknown | Not App. | Unknown | Unknown |
PX | Asarum splendens cvs.X | Chinese wild ginger | Moderate | Moderate | Unknown | Not App. | Unknown | Unknown |
PX | Asclepias (CA native species)X | milk/silk weed | Low | Low | Very Low | Low | Low | Low |
PX | Asclepias curassavicaX | scarlet milkweed | Moderate | Moderate | Low | Low | Unknown | Low |
PX | Asclepias incarnataX | swamp milkweed | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Asclepias subulataX | desert milkweed | Not App. | Low | Very Low | Low | Low | Low |
PX | Asclepias tuberosaX | orange milkweed | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Asparagus aethiopicus, cvs. (A. densiflorus)X | asparagus fern | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Asparagus densiflorus (See A. aethiopicus)X | | | | | | | |
PX | Asphodeline luteaX | Jacob's rod/kings spear | Low | Low | Low | Unknown | Unknown | Unknown |
PX | Asphodeline tauricaX | asphodel | Low | Low | Unknown | Unknown | Unknown | Unknown |
PX | Asphodelus aestivus X | white asphodel | Moderate | Unknown | Very Low | Unknown | Unknown | Unknown |
PX | Aspidistra elatior (shade)X | cast iron plant | Low | Low | Moderate | Moderate | Moderate | Moderate |
PX | Asplenium bulbiferum (shade in low desert)X | mother fern | Moderate | Moderate | Moderate | High | Not App. | Moderate |
PX | Asplenium nidus (N. australasicum) (shade)X | bird's nest fern | Moderate | Moderate | Moderate | High | Not App. | Not App. |
PX | Asplenium scolopendrium (Phyllitis scolopendrium)X | Hart's tongue fern | Low | Unknown | Not App. | Not App. | Not App. | Not App. |
PX | Astelia banksii (shade)X | shore astelia | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
PX | Astelia chathamicaX | silver spear | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
PX | Astelia nervosa (shade)X | mountain astellia | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
PX | Astelia nivicola (shade)X | astelia | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
PX | Astelia x 'Silver Shadow' (shade)X | silver shadow astelia | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
PX | Aster ascendens (See Symphyotrichum ascendens)X | | | | | | | |
PX | Aster chilensis (See Symphyotrichum chilense)X | | | | | | | |
PX | Aster spp., cvs., hybrids (genus now split to many)X | aster | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Asteriscus maritimus (See Pallenis maritima)X | | | | | | | |
PX | Asteriscus sericeus (See Nauplius sericeus)X | | | | | | | |
PX | Astilbe chinensisX | Chinese astilbe | Moderate | High | Not App. | Not App. | Not App. | Not App. |
PX | Astilbe hybridsX | false spirea | Moderate | High | Not App. | Not App. | Not App. | Not App. |
PX | Astrantia carniolicaX | dwarf red masterwort | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Astrantia majorX | greater masterwort | Moderate | Moderate | Unknown | Not App. | Unknown | Unknown |
SX | Athanasia acerosa (See Hymenolepis parviflora)X | | | | | | | |
PX | Athyrium filix-femina (shade)X | lady fern | Moderate | High | High | Moderate | Unknown | Not App. |
PX | Athyrium nipponicum cvs. (shade)X | painted fern | Moderate | Moderate | Moderate | Not App. | Unknown | Unknown |
GcXSX | Atriplex CA native species X | saltbush | Very Low | Very Low | Very Low | Very Low | Low | Very Low |
GcXSX | Atriplex semibaccataX | Australian saltbush | Very Low | Very Low | Very Low | Very Low | Low | Very Low |
PX | Aubrieta deltoideaX | rock cress | Low | Moderate | Unknown | Not App. | Unknown | Unknown |
PX | Aubrieta x cultorumX | rock cress | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Aucuba japonica (shade)X | Japanese aucuba | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
PX | Aurinia saxatilisX | hardy alyssum/basket of gold | Low | Low | Moderate | Moderate | Unknown | Unknown |
GX | Austrostipa ramosissima (See Stipa ramosissima)X | | | | | | | |
TX | Azadirachta indicaX | neem | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Azaleadendron 'Hardjizer's Beauty'X | Hardijizer's beauty | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Azara dentataX | orono | Moderate | Not App. | Moderate | Unknown | Not App. | Not App. |
TX | Azara integrifoliaX | azara | Moderate | Not App. | Moderate | Unknown | Not App. | Not App. |
TX | Azara microphyllaX | box leaf azara | Moderate | Not App. | Moderate | Moderate | Moderate | Not App. |
TX | Azara serrata 'Andean Gold'X | Andean gold saw-tooth azara | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Azorina vidaliiX | Azores bellflower | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
BuX | Babiana spp. and hybridsX | baboon flower | Low | Not App. | Very Low | Very Low | Not App. | Not App. |
SX | Baccharis 'Centennial'X | Centennial baccharis | Very Low | Low | Very Low | Low | Low | Low |
GcXSX | Baccharis 'Starn'X | Starn coyote brush | Unknown | Unknown | Very Low | Low | Low | Low |
SX | Baccharis pilularis consanguineaX | coyote brush | Low | Low | Low | Low | Not App. | Not App. |
GcXSX | Baccharis pilularis cvs.X | dwarf coyote brush | Low | Low | Low | Low | Moderate | Moderate |
SX | Baccharis salicifoliaX | mule fat | Low | Moderate | High | Moderate | Moderate | High |
SX | Baccharis sarothroidesX | desert broom | Very Low | Low | Very Low | Low | Low | Low |
PX | Bacopa 'Snowflake' (See Sutera spp.)X | | | | | | | |
SXTX | Baeckea virgataX | tall baeckia | Low | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Baeometra unifloraX | beetle lily | Unknown | Very Low | Unknown | Unknown | Unknown | Unknown |
GcX | Bahia absinthifoliaX | hairy seed false goldfields | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Bahia dissectaX | ragged leaf bahia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Bahiopsis deltoidea (Viguiera deltoidea)X | goldeneye | Not App. | Low | Very Low | Unknown | Low | Low |
SX | Bahiopsis laciniata (Viguiera laciniata)X | San Diego County viguiera | Not App. | Low | Very Low | Unknown | Unknown | Unknown |
PX | Baileya multiradiataX | desert marigold | Low | Unknown | Very Low | Low | Low | Low |
PX | Baldellia ranunculoides repensX | Siberian pink cups | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Ballota 'All Hallows Green' (See Marrubium borgaei)X | | | | | | | |
PX | Ballota nigra 'Archer's Variety'X | variegated black horehound | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Ballota pseudodictamnusX | Grecian horehound | Very Low | Very Low | Very Low | Unknown | Unknown | Unknown |
PX | Balsamorhiza sagittataX | arrowleaf balsam root | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
BaXSX | Bambusa spp.X | bamboo (Bambusa) | Low | Low | Moderate | Moderate | Moderate | Moderate |
SX | Banksia baxteriX | bird's nest banksia | Low | Not App. | Low | Unknown | Unknown | Unknown |
PXSX | Banksia ericifoliaX | heath-leafed banksia | Low | Not App. | Low | Unknown | Unknown | Unknown |
SXTX | Banksia integrifoliaX | tree banksia | Low | Not App. | Low | Moderate | Not App. | Unknown |
SX | Banksia menziesiiX | firewood banksia | Low | Not App. | Low | Unknown | Unknown | Unknown |
SXTX | Banksia praemorsaX | cut-leaf banksia | Low | Not App. | Low | Unknown | Unknown | Unknown |
SXTX | Banksia speciosaX | showy banksia | Low | Not App. | Low | Moderate | Not App. | Moderate |
PX | Baptisia australisX | false indigo | Low | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Baptisia leucanthaX | false indigo | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Barbacenia purpureaX | purple vellozia | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Barleria obtusaX | bush violet | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
SX | Barleria repensX | coral creeper | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Bartlettina sordidaX | purple torch | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Bauera rubioidesX | dog rose | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
V | Bauhinia corymbosaX | phanera | Unknown | Unknown | Moderate | Unknown | Not App. | Moderate |
TX | Bauhinia divaricata (B.mexicana)X | Mexican bauhinia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Bauhinia forficata X | Brazilian butterfly tree | Not App. | Moderate | Moderate | Moderate | Not App. | Unknown |
SXTX | Bauhinia galpiniiX | red orchid bush | Low | \ | Moderate | Moderate | Not App. | Moderate |
SX | Bauhinia lunarioidesX | Texas plume | Not App. | Unknown | Low | Low | Unknown | Moderate |
TX | Bauhinia macranthaX | Chihuahua orchid tree | Not App. | Not App. | Low | Unknown | Moderate | Moderate |
SX | Bauhinia tomentosaX | yellow bell bauhinia | Not App. | Not App. | Moderate | Unknown | Unknown | Not App. |
TX | Bauhinia variegata (purpurea)X | purple orchid tree | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
TX | Bauhinia x blakeanaX | Hong Kong orchid tree | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
PX | Baumea rubiginosaX | baumea | Moderate | High | High | Unknown | Unknown | Unknown |
SX | Beaucarnea guatemalensis (Nolina guatemalensis)X | red ponytail palm | Unknown | Not App. | Moderate | Low | Unknown | Unknown |
SXTX | Beaucarnea recurvata (Nolina recurvata)X | ponytail palm | Low | Not App. | Low | Low | Unknown | Moderate |
SX | Beaucarnea stricta (Nolina stricta)X | bottle palm | Low | Not App. | Low | Low | Unknown | Unknown |
V | Beaumontia grandifloraX | Easter lily vine | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Bebbia junceaX | sweet bush | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
GcX | Beesia deltophyllaX | beesia | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Begonia 'Richmondensis'X | Richmond begonia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Begonia acutifoliaX | white richmondensis begonia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Begonia cvs. (shade in desert)X | begonia | Moderate | Moderate | Moderate | Moderate | Unknown | Moderate |
PX | Begonia fuchsoides roseaX | fuchsia begonia | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Begonia grandisX | hardy begonia | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Begonia semperflorensX | wax begonia | Moderate | Moderate | Moderate | Moderate | Not App. | Unknown |
PX | Bellis perennisX | English daisy | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Bellium minutumX | miniature daisy | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Beloperone californica (See Justicia californica)X | | | | | | | |
SXV | Berberidopsis corallinaX | coral plant | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Berberis 'Golden Abundance' (Mahonia)X | golden abundance mahonia | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
GcXSX | Berberis aquifolium 'Compacta' (partial shade in South Inland)X | compact Oregon grape holly | Moderate | Low | Low | Low | Moderate | High |
SX | Berberis aquifolium (Mahonia)X | Oregon grape | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
GcXSX | Berberis aquifolium var. repens (shade)X | creeping mahonia | Low | Low | Low | Low | Moderate | Not App. |
SX | Berberis bealei (Mahonia bealei)X | leatherleaf mahonia | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Berberis darwiniiX | Darwin's barberry | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Berberis eurybracteata 'Soft Caress' (Mahonia)X | soft caress grape holly | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Berberis fortunei (Mahonia fortunei) nomen. unresolvedX | Fortune's mahonia | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
SX | Berberis haematocarpa (Mahonia haematocarpa)X | red barberry | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
SX | Berberis nervosa (Mahonia nervosa)X | longleaf mahonia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Berberis nevinii X | Nevin mahonia | Low | Low | Very Low | Low | Moderate | Moderate |
SX | Berberis pinnata, cvs. (Mahonia pinnata)X | California holly grape | Low | Low | Low | Moderate | Moderate | Moderate |
SX | Berberis thunbergii, cvs.X | Japanese barberry | Moderate | Moderate | Low | Moderate | High | High |
SX | Berberis trifoliata (Mahonia trifoliata)X | currant of Texas | Unknown | Unknown | Unknown | Low | Unknown | Unknown |
SX | Berberis x media cvs. (Mahonia)X | barberry | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
GcXSX | Berberis x stenophylla 'Irwinii'X | barberry | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Bergenia ciliataX | frilly bergenia | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Bergenia cordifoliaX | heartleaf bergenia | Moderate | Moderate | Moderate | Moderate | Unknown | Not App. |
PX | Bergenia crassifoliaX | winter blooming bergenia | Moderate | Low | Moderate | Moderate | Unknown | Not App. |
PX | Bergenia hybridsX | hybrid bergenia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Berlandiera lyrataX | chocolate scented daisy | Low | Moderate | Low | Moderate | Low | Low |
SX | Berzelia lanuginosaX | buttonbush | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PXSuX | Beschorneria albifloraX | trunking beschorneria | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSuX | Beschorneria yuccoidesX | Mexican lily | Low | Low | Moderate | Moderate | Unknown | Unknown |
TX | Betula nigraX | river/red birch | High | High | High | High | Not App. | Not App. |
TX | Betula occidentalisX | water birch | High | High | High | High | Not App. | Not App. |
TX | Betula pendulaX | European white birch | High | High | High | High | Not App. | Not App. |
TX | Betula platyphylla japonicaX | Japanese mountain birch | High | High | Unknown | Unknown | Not App. | Not App. |
TX | Betula utilis var. jacquemontiiX | white barked Himalayan birch | High | High | Not App. | Not App. | Not App. | Not App. |
TX | Betula x 'Royal Frost'X | Royal Frost Birch | High | Unknown | High | Unknown | Not App. | Not App. |
PX | Bidens ferulifoliaX | Apache beggarticks | Unknown | Low | Moderate | Unknown | Unknown | Unknown |
PX | Bidens laevisX | bur marigold | Unknown | Unknown | Moderate | High | Unknown | Unknown |
PX | Bidens nudataX | yellow laguna bur marigold | Unknown | Unknown | Low | Moderate | Unknown | Unknown |
PX | Bidens triplinerviaX | tickseed | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Bignonia capreolataX | cross vine | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
V | Billardiera longifloraX | climbing blueberry | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Billbergia spp. (shade)X | queen's tears, etc. | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Bischofia javanicaX | toog | Not App. | Not App. | Moderate | Unknown | Not App. | Not App. |
PmXTX | Bismarckia nobilisX | Bismarck palm | Not App. | Unknown | Moderate | Unknown | Not App. | Moderate |
PX | Blechnum brasiliense (shade)X | fern | Unknown | Unknown | High | Moderate | Unknown | Unknown |
PX | Blechnum gibbum (shade)X | dwarf tree fern | Moderate | Unknown | High | High | Unknown | Unknown |
PX | Blechnum occidentaleX | hammock fern | Moderate | Unknown | Moderate | High | Unknown | Unknown |
PX | Blechnum penna-marinaX | alpine water fern | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
PX | Blechnum spicant (shade in low desert)X | deer fern | Moderate | Low | Moderate | Not App. | Unknown | Moderate |
PX | Bletilla striataX | hyacinth orchid | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
BuX | Bloomeria croceaX | golden stars | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
SX | Bocconia frutescensX | tree poppy | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
PX | Bolax gummifera (glebaria)X | bolax/glebaria | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Boltonia asteroides cvs.X | false chamomile | Low | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Bolusanthus speciosusX | South African tree wisteria | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Bomarea spp. (shade)X | vine alstroemeria | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BuX | Boophone distichaX | oxbane | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Borago pygmaeaX | creeping borage | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
BaXPX | Borinda angustissimaX | narrow leaf clumping bamboo | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
BaXPX | Borinda bolianaX | giant blue bamboo | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
BaXPX | Borinda fungosaX | chocolate bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Boronia spp.X | boronia | Moderate | Not App. | Moderate | Not App. | Not App. | Not App. |
GX | Bothriochloa barbinodisX | cane bluestem | Low | Low | Low | Low | Unknown | Unknown |
GX | Bothriochloa gerardiiX | turkey foot | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Bouchea linifoliaX | flaxleaf bouchea | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Bouchea spathulataX | spoonleaf bouchea | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GcXSXV | Bougainvillea spp.X | bougainvillea | Low | Low | Low | Low | Not App. | Moderate |
GX | Bouteloua curtipendulaX | sideoats grama | Very Low | Low | Very Low | Low | Low | Low |
GX | Bouteloua gracilis, cvs.X | blue grama | Low | Low | Low | Low | Low | Low |
PX | Boykinia occidentalis (shade)X | brookfoam | Moderate | Unknown | High | Moderate | Unknown | Unknown |
TX | Brachychiton acerifoliusX | flame tree | Low | Not App. | Low | Moderate | Not App. | Not App. |
TX | Brachychiton discolorX | Queensland lace bark | Moderate | Not App. | Low | Moderate | Not App. | Not App. |
TX | Brachychiton populneusX | bottle tree | Low | Low | Low | Low | Moderate | Moderate |
TX | Brachychiton rupestrisX | Queensland bottle tree | Not App. | Not App. | Low | Low | Not App. | Moderate |
TX | Brachychiton x hybridusX | hybrid brachychiton | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
PX | Brachyglottis greyi (Senecio greyi)X | groundsel | Low | Low | Moderate | Unknown | Unknown | Unknown |
PX | Brachyscome spp.X | Swan River daisy | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Brachysema celsianum (B. lanceolata)X | Swan River pea | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Brachysema praemorsum 'Bronze Butterfly'X | bronze butterfly | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Bracteantha cvs.X | strawflower | Moderate | Low | Unknown | Unknown | Unknown | Unknown |
PmXTX | Brahea armataX | blue hesper palm | Low | Low | Low | Low | Moderate | Moderate |
PmXTX | Brahea brandegeeiX | San Jose hesper palm | Low | Unknown | Moderate | Low | Unknown | Unknown |
PmXTX | Brahea edulisX | Guadalupe palm | Low | Low | Low | Low | Moderate | Moderate |
PmXTX | Brahea nitidaX | rock palm | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Brassaia actinophylla (See Schefflera actinophylla)X | | | | | | | |
SX | Breynia nivosa (distacha)X | Hawaiian snow bush | Unknown | Unknown | High | High | Not App. | Not App. |
SX | Brickellia californicaX | brickellbush | Low | Moderate | Very Low | Low | Unknown | Unknown |
SX | Brickellia grandifloraX | golden sashay | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Brighamia insignisX | cabbage on a stick | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Brillantaisia nitensX | tropical giant sage | Unknown | Unknown | Moderate | Not App. | Unknown | Unknown |
GX | Briza media X | quaking grass | Low | Low | Low | Low | Unknown | Unknown |
BuX | Brodiaea spp.X | brodiaea | Very Low | Very Low | Very Low | Low | Not App. | Not App. |
PX | Bromelia balansaeX | heart of fire | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
GX | Bromus inermis 'Skinner's Gold'X | Skinner's Gold Austrian brome grass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Brugmansia spp.X | angel's trumpet | Moderate | Moderate | Moderate | High | Not App. | Not App. |
SX | Brunfelsia macrantha (See B. pauciflora)X | | | | | | | |
SX | Brunfelsia paucifloraX | yesterday, today and tomorrow | Moderate | Moderate | Moderate | Moderate | Not App. | High |
PX | Brunnera macrophyllaX | Siberian bugloss | High | High | High | Not App. | Unknown | Unknown |
SX | Buddleja crispaX | Himalayan butterfly bush | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Buddleja alternifoliaX | fountain butterfly bush | Low | Low | Moderate | Not App. | Moderate | Moderate |
SX | Buddleja davidii, hybridsX | butterfly bush | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Buddleja lindleyanaX | weeping butterfly bush | Low | Moderate | Low | Not App. | Unknown | Unknown |
SX | Buddleja marrubiifoliaX | woolly butterfly bush | Unknown | Low | Unknown | Low | Low | Low |
PX | Bulbine frutescensX | stalked bulbine | Low | Low | Low | Low | Low | Low |
PX | Bulbine latifoliaX | rooiwortel | Low | Unknown | Low | Low | Unknown | Unknown |
BuX | Bulbinella elegansX | cat's tail lily | Low | Unknown | Low | Low | Unknown | Unknown |
BuX | Bulbinella floribundaX | yellow cat tail | Low | Low | Low | Low | Unknown | Unknown |
BuX | Bulbinella hookeriX | Maori onion | Low | Unknown | Moderate | Low | Unknown | Unknown |
BuX | Bulbinella nutansX | bulbinella | Low | Unknown | Low | Low | Unknown | Unknown |
BuX | Bulbinella robustaX | bulbinella | Low | Low | Low | Low | Unknown | Unknown |
SX | Bupleurum fruticosumX | shrubby hare's ear | Low | Low | Low | Low | Unknown | Unknown |
SX | Bursera fagaroidesX | fragrant bursera | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
TX | Bursera hindsianaX | bursera | Not App. | Unknown | Very Low | Not App. | Not App. | Moderate |
TX | Bursera microphyllaX | little elephant tree | Not App. | Unknown | Very Low | Unknown | Unknown | Low |
PmXTX | Butia capitata (See B. odorata)X | | | | | | | |
PmXTX | Butia eriospathaX | woolly butia palm | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PmXTX | Butia odorata (B. capitata)X | pindo palm | Low | Low | Low | Low | Moderate | Moderate |
SX | Buxus microphylla japonicaX | Japanese boxwood | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Buxus sempervirensX | English boxwood | Moderate | Moderate | Moderate | Not App. | Moderate | Moderate |
TX | Caesalpinia cacalacoX | cascalote | Unknown | Unknown | Low | Unknown | Not App. | Low |
SX | Caesalpinia californicaX | vara prieta | Not App. | Low | Very Low | Unknown | Unknown | Unknown |
SX | Caesalpinia gilliesiiX | desert bird of paradise | Low | Low | Low | Low | Low | Low |
SX | Caesalpinia mexicanaX | Mexican bird of paradise | Unknown | Not App. | Low | Low | Low | Low |
SX | Caesalpinia platylobaX | chakte viga | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Caesalpinia pulcherrima (deciduous in desert)X | dwarf poinciana | Low | Low | Low | Moderate | Low | Low |
PX | Caladium bicolor (shade)X | caladium | Not App. | Not App. | High | High | Not App. | Not App. |
GX | Calamagrostis foliosaX | leafy reed grass | Moderate | Moderate | Moderate | Not App. | Unknown | Unknown |
GX | Calamagrostis nutkaensisX | Pacific reed grass | Moderate | Moderate | Moderate | Not App. | Unknown | Unknown |
GX | Calamagrostis x acutiflora cvs., e.g. Karl FoersterX | feather reed grass | Moderate | Low | Moderate | Moderate | Moderate | Unknown |
PX | Calandrinia spp., cvs. (some spp. changed to Cistanthe sp.)X | rock purslane | Low | Low | Low | Low | Unknown | Unknown |
PX | Calceolaria spp.X | slipper flower/slipperwort | Moderate | Unknown | Moderate | Unknown | Not App. | Not App. |
PX | Calibanus hookeri X | calibanus | Not App. | Not App. | Very Low | Very Low | Unknown | Unknown |
PX | Calibrachoa cvs.X | million bells | Moderate | Moderate | Moderate | Moderate | Moderate | Unknown |
V | Callaeum macroptera (Mascagnia)X | yellow orchid vine | Unknown | Unknown | Low | Unknown | Unknown | Moderate |
SX | Calliandra 'Sierra Star'X | fairy duster hybrid | Unknown | Unknown | Unknown | Low | Low | Low |
SX | Calliandra californicaX | Baja fairy duster | Not App. | Not App. | Very Low | Low | Low | Low |
SX | Calliandra emarginataX | dwarf powderpuff | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Calliandra eriophyllaX | fairy duster | Not App. | Not App. | Very Low | Very Low | Low | Low |
SX | Calliandra haematocephalaX | pink powder puff | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
SX | Calliandra lanceolatusX | lemon bottlebrush | Unknown | Not App. | Unknown | Unknown | Unknown | Unknown |
SX | Calliandra peninsularisX | Baja fairy duster | Unknown | Not App. | Unknown | Low | Unknown | Low |
SX | Calliandra surinamensisX | Surinam flame bush | Unknown | Not App. | Moderate | Low | Unknown | Unknown |
SX | Calliandra tweediiX | Trinidad flame bush | Not App. | Moderate | Low | Low | Not App. | Not App. |
SX | Callicarpa bodinieriX | beauty berry | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Callicarpa dichotomaX | lavender beautyberry | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Callicarpa japonicaX | beauty berry | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Callirhoe involucrataX | wine cups | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Callisia fragransX | basket plant | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Callistemon 'Cane's hybrid'X | Cane's hybrid bottlebrush | Low | Unknown | Low | Low | Unknown | Unknown |
SX | Callistemon 'Jeffers'X | Jeffer's bottlebrush | Low | Low | Low | Low | Unknown | Unknown |
SX | Callistemon 'Little John'X | Little John bottlebrush | Low | Low | Low | Low | Moderate | Moderate |
SX | Callistemon 'Violaceus'X | purple bottle brush | Low | Low | Low | Low | Unknown | Unknown |
SXTX | Callistemon citrinusX | bottle brush | Low | Low | Low | Low | Not App. | Moderate |
SXTX | Callistemon pinifoliusX | pine-leafed bottlebrush | Low | Low | Low | Low | Unknown | Unknown |
SX | Callistemon rigidusX | erect bottlebrush | Low | Unknown | Unknown | Low | Unknown | Unknown |
SXTX | Callistemon salignusX | pink tips/white bottlebrush | Low | Moderate | Low | Unknown | Not App. | Unknown |
SXTX | Callistemon speciosusX | Albany bottlebrush | Moderate | Unknown | Moderate | Unknown | Not App. | Moderate |
SXTX | Callistemon subulatusX | callistemon (subulatus) | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Callistemon viminalisX | weeping bottle brush | Low | Low | Low | Moderate | Not App. | Moderate |
SX | Calluna vulgarisX | Scotch heather | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Calocedrus decurrens X | incense cedar | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
SX | Calocephalus brownii (See Leucophyta brownii)X | | | | | | | |
BuX | Calochortus spp.X | Mariposa lily | Low | Low | Very Low | Very Low | Very Low | Very Low |
TX | Calodendrum capense X | cape chestnut | Low | Not App. | Moderate | Moderate | Not App. | Not App. |
BuX | Calostemma purpureumX | garland lily | Moderate | Unknown | Low | Moderate | Unknown | Unknown |
SX | Calothamnus gracilis 'Spring Torch'X | slender net bush | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Calothamnus quadrifidusX | net bush | Low | Unknown | Low | Unknown | Not App. | Unknown |
SX | Calothamnus villosusX | silky net bush | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Caltha palustrisX | marsh marigold | High | High | Unknown | Not App. | Unknown | Unknown |
PX | Caltha polypetalaX | giant marsh marigold | High | Unknown | Unknown | Not App. | Unknown | Unknown |
SX | Calycanthus floridusX | Carolina allspice | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Calycanthus occidentalis (shade)X | western spice bush | Moderate | Low | Moderate | Moderate | Not App. | Not App. |
SX | Calycanthus sinensisX | Chinese wax shrub | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Calylophus berlandieriX | sundrops | Low | Low | Very Low | Low | Unknown | Unknown |
PX | Calylophus drummondianaX | Texas primrose | Low | Low | Very Low | Low | Moderate | Moderate |
PX | Calylophus hartwegiiX | Sierra sundrop | Low | Low | Very Low | Low | Moderate | Moderate |
V | Calystegia macrostegiaX | morning glory | Low | Moderate | Low | Moderate | Unknown | Unknown |
V | Calystegia purpurata ssp. purpurataX | coast morning glory | Low | Not App. | Low | Moderate | Unknown | Unknown |
V | Calystegia subacaulis ssp. episcopalisX | morning glory | Unknown | Not App. | Unknown | Unknown | Unknown | Unknown |
BuX | Camassia cusickiiX | Cusick's Quamash | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
BuX | Camassia quamashX | camas | Moderate | Moderate | Not App. | Not App. | Unknown | Unknown |
SX | Camellia japonica (shade in desert)X | camellia | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Camellia reticulataX | reticulata camellia | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Camellia sasanqua (shade in desert)X | sasanqua camellia | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
PX | Camissoniopsis cheiranthifolia (Oenothera)X | beach evening primrose | Low | Unknown | Very Low | Not App. | Not App. | Not App. |
GcX | Campanula poscharskyanaX | Serbian bell flower | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
GcXPX | Campanula spp., cvs.X | bell flower | Moderate | High | Moderate | Moderate | Not App. | Unknown |
V | Campsis spp.X | trumpet creeper | Low | Low | Moderate | Moderate | Moderate | Moderate |
BuX | Canna spp.X | canna | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Cannomois grandisX | large bell reed | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Cantua buxifoliaX | magic flower | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
SX | Capparis spinosaX | caper bush | Very Low | Not App. | Low | Low | Unknown | Unknown |
SX | Caragana arborescensX | Siberian pea shrub | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Carex 'Bowles Golden'X | Bowles Golden sedge | Moderate | High | High | Unknown | Unknown | Unknown |
PX | Carex albulaX | frosty curls hair sedge | Moderate | High | Moderate | Moderate | Unknown | Unknown |
PX | Carex brunnea (sold as C.elegantissima) X | narrow sedge | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Carex buchananiiX | curly top sedge | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Carex divulsa (sold as C. tumulicola)X | European gray sedge | Low | Low | Low | Low | Moderate | Moderate |
PX | Carex flacca (C. glauca) X | blue sedge | Moderate | Moderate | Low | Unknown | Unknown | Unknown |
PX | Carex morrowii cvs. (Ice Dance, etc.) (shade)X | Morrow's sedge | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Carex oshimensis cvs. (shade in Central Valley)X | Japanese sedge | Moderate | Low | Moderate | Unknown | Unknown | Unknown |
PX | Carex pansaX | sand dune sedge | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Carex praegracilisX | California field sedge | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Carex spissaX | San Diego sedge | Moderate | Low | Moderate | Low | Unknown | Unknown |
PX | Carex subfuscaX | rusty sedge | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Carex sylvaticaX | forest sedge | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Carex testaceaX | orange New Zealand sedge | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Carex texensisX | catlin sedge | Low | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Carex tumulicolaX | Berkeley sedge | Low | Low | Low | Low | Moderate | Moderate |
GcX | Carissa macrocarpa (prost. cvs.) X | Natal plum | Low | Not App. | Low | Moderate | Not App. | Moderate |
SX | Carissa spp., cvs.X | Natal plum | Low | Not App. | Low | Moderate | Not App. | Moderate |
SX | Carnegiea giganteaX | saguaro | Not App. | Not App. | Very Low | Low | Not App. | Low |
SX | Carpenteria californicaX | bush anemone | Moderate | Low | Low | Moderate | Not App. | Not App. |
TX | Carpinus betulusX | European hornbeam | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Carpinus carolinianaX | American hornbeam | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
TX | Carpinus coreanaX | Korean hornbeam | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
TX | Carpinus japonicaX | Japanese hornbeam | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
GcX | Carpobrotus spp.X | ice plant (Carpobrotus) | Low | Moderate | Very Low | Low | Low | Low |
TX | Carya illinoensisX | pecan | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
PXSX | Caryopteris incanaX | common bluebeard | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSX | Caryopteris odorataX | bluebeard | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PXSX | Caryopteris x clandonensisX | blue mist/dark night | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PmXTX | Caryota gigas (obtusa)X | giant fishtail palm | Not App. | Not App. | High | Not App. | Not App. | Unknown |
PmXTX | Caryota maxima (C. urens)X | fishtail wine palm | Not App. | Not App. | High | High | Not App. | Not App. |
PmXSXTX | Caryota mitis X | clustered fishtail palm | Not App. | Not App. | High | Not App. | Not App. | Not App. |
PmXTX | Caryota urens (See C. maxima)X | | | | | | | |
TX | Casimiroa edulisX | white sapote | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Cassia armata (See Senna armata)X | | | | | | | |
SX | Cassia artemisioides (See Senna artemisioides)X | | | | | | | |
SX | Cassia australis (See Senna australis)X | | | | | | | |
SX | Cassia bicapsularis (C. candolleana) (See Senna bicapsularis)X | | | | | | | |
SX | Cassia corymbosa (See Senna corymbosa)X | | | | | | | |
SX | Cassia didymobotrya (See Senna didymobotrya)X | | | | | | | |
SX | Cassia eremophila (Senna nemophila)X | | | | | | | |
SX | Cassia goldmanii (See Senna polyantha)X | | | | | | | |
TX | Cassia leptophyllaX | gold medallion tree | Low | Low | Moderate | Moderate | Not App. | Not App. |
SX | Cassia lindheimeriana (See Senna lindheimeriana)X | | | | | | | |
SX | Cassia odorata (See Senna odorata)X | | | | | | | |
SX | Cassia phyllodinea(See Senna phyllodinea)X | | | | | | | |
TX | Cassia spectabilis (C.excelsa) (See Senna spectabilis)X | | | | | | | |
SX | Cassia splendida (See Senna splendida)X | | | | | | | |
SX | Cassia sturtii (See Senna sturtii)X | | | | | | | |
SX | Cassia tomentosa (See Senna multiglandulosa)X | | | | | | | |
SX | Cassia wislizenii (See Senna wislizenii)X | | | | | | | |
TX | Castanopsis cuspidataX | copper false chestnut | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Castanospermum australeX | Moreton Bay chestnut | Low | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Casuarina cunninghamianaX | river she-oak | Low | Low | Low | Low | Moderate | Moderate |
TX | Casuarina stricta (See Allocasuarina verticilliata)X | | | | | | | |
TX | Catalpa bignonioidesX | bean tree | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Catalpa bungeiX | umbrella catalpa | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Catalpa erubescensX | purple catalpa | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Catalpa speciosaX | western catalpa | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Catananche caeruleaX | cupid's dart | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Catharanthus roseusX | Madagascar periwinkle | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
PX | Cautleya spicataX | cautleya | High | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Ceanothus 'Alice Blue'X | Alice Blue ceanothus | Unknown | Unknown | Low | Unknown | Not App. | Not App. |
SX | Ceanothus 'Blue Jeans'X | Blue Jeans ceanothus | Low | Low | Low | Low | Not App. | Not App. |
GcX | Ceanothus 'Centennial'X | Centennial ceanothus | Low | Moderate | Low | Not App. | Not App. | Not App. |
SX | Ceanothus 'Concha'X | Concha ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus 'Cynthia Postan'X | Cynthia Postan ceanothus | Unknown | Unknown | Low | Low | Not App. | Not App. |
SX | Ceanothus 'Dark Star'X | Dark Star ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus 'Frosty Blue'X | Frosty Blue ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus 'Gloire de Versailles'X | Gloire de Versailles ceanothus | Moderate | Moderate | Not App. | Moderate | Not App. | Not App. |
SX | Ceanothus 'Joan Mirov'X | Joan Mirov ceanothus | Low | Low | Low | Not App. | Not App. | Not App. |
GcX | Ceanothus 'Joyce Coulter'X | Joyce Coulter ceanothus | Moderate | Moderate | Low | Moderate | Not App. | Not App. |
SX | Ceanothus 'Julia Phelps'X | Julia Phelps ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus 'Louis Edmunds'X | Louis Edmonds ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus 'Ray Hartman'X | Ray Hartman ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus 'Sierra Blue'X | Sierra Blue ceanothus | Low | Unknown | Very Low | Low | Not App. | Not App. |
SX | Ceanothus 'Tassajara Blue'X | Tassajara Blue ceanothus | Low | Unknown | Low | Low | Not App. | Not App. |
SX | Ceanothus 'Tilden Park'X | Tilden Park ceanothus | Low | Unknown | Low | Not App. | Not App. | Not App. |
SX | Ceanothus 'Wheeler Canyon'X | Wheeler Canyon ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus arboreus, cvs.X | island ceanothus | Low | Low | Low | Moderate | Not App. | Not App. |
SX | Ceanothus cuneatusX | buckbrush | Very Low | Very Low | Very Low | Low | Not App. | Not App. |
SX | Ceanothus cyaneusX | San Diego ceanothus | Low | Unknown | Very Low | Very Low | Not App. | Not App. |
SX | Ceanothus foliosus, cvs.X | wavy leaf mountain lilac | Very Low | Low | Low | Not App. | Not App. | Not App. |
GcX | Ceanothus gloriosus 'Anchor Bay'X | Anchor Bay ceanothus | Low | Moderate | Low | Not App. | Not App. | Not App. |
GcX | Ceanothus gloriosus 'Heart's Desire'X | Heart's Desire ceanothus | Low | Moderate | Low | Moderate | Not App. | Not App. |
GcX | Ceanothus gloriosus 'Emily Brown'X | Emily Brown ceanothus | Low | Moderate | Unknown | Moderate | Not App. | Not App. |
SX | Ceanothus gloriosus v. porrectus 'Mt. Vision'X | Mt. Vision ceanothus | Very Low | Low | Low | Moderate | Not App. | Not App. |
SX | Ceanothus greggiiX | desert ceanothus | Very Low | Unknown | Very Low | Low | Not App. | Not App. |
GcX | Ceanothus hearstiorumX | San Simeon ceanothus | Low | Not App. | Unknown | Not App. | Not App. | Not App. |
SX | Ceanothus impressus 'Puget Blue'X | Puget Blue ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus impressus 'Vandenberg'X | Vandenberg ceanothus | Low | Low | Low | Not App. | Not App. | Not App. |
SX | Ceanothus integerrimus X | deer brush | Very Low | Low | Low | Not App. | Not App. | Not App. |
SX | Ceanothus leucodermis X | white bark CA lilac | Very Low | Low | Very Low | Very Low | Not App. | Not App. |
GcX | Ceanothus maritimus 'Frosty Dawn'X | Frosty Dawn ceanothus | Low | Low | Low | Low | Not App. | Not App. |
GcX | Ceanothus maritimus 'Popcorn'X | Popcorn CA lilac | Low | Unknown | Low | Low | Not App. | Not App. |
GcX | Ceanothus maritimus 'Pt. Sierra'X | Pt. Sierra ceanothus | Low | Low | Low | Low | Not App. | Not App. |
GcX | Ceanothus maritimus 'Valley Violet'X | Valley Violet ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus megacarpusX | big pod ceanothus | Very Low | Low | Very Low | Very Low | Not App. | Not App. |
SX | Ceanothus rigidus 'Snowball'X | Snowball ceanothus | Low | Low | Low | Low | Not App. | Not App. |
SX | Ceanothus spinosusX | green bark ceanothus | Unknown | Low | Very Low | Very Low | Not App. | Not App. |
SX | Ceanothus thyrsiflorus 'Arroyo de la Cruz'X | Arroyo de la Cruz ceanothus | Low | Unknown | Low | Low | Not App. | Not App. |
SX | Ceanothus thyrsiflorus 'El Dorado'X | El Dorado ceanothus | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Ceanothus thyrsiflorus 'Oregon Mist'X | Oregon Mist ceanothus | Low | Unknown | Unknown | Unknown | Not App. | Not App. |
SX | Ceanothus thyrsiflorus 'Skylark'X | Skylark ceanothus | Low | Low | Moderate | Moderate | Not App. | Not App. |
SX | Ceanothus thyrsiflorus 'Snow Flurry'X | Snow Flurry ceanothus | Low | Low | Low | Low | Not App. | Not App. |
GcX | Ceanothus thyrsiflorus var. griseus 'Carmel Creeper'X | Carmel Creeper ceanothus | Low | Moderate | Low | Moderate | Not App. | Not App. |
GcX | Ceanothus thyrsiflorus var. griseus 'Diamond Heights'X | Diamond Heights ceanothus | Low | Not App. | Unknown | Moderate | Not App. | Not App. |
SX | Ceanothus thyrsiflorus var. griseus 'Yankee Point'X | Yankee Point ceanothus | Low | Low | Low | Moderate | Not App. | Not App. |
SX | Ceanothus tomentosus var. olivaceusX | woolly leaf ceanothus | Unknown | Unknown | Very Low | Very Low | Not App. | Not App. |
SX | Ceanothus verrucosusX | warty stem ceanothus | Unknown | Unknown | Very Low | Very Low | Not App. | Not App. |
SX | Ceanothus x pallidus 'Marie Simon'X | Marie Simon ceanothus | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Cedrela fissilisX | Brazilian cedarwood | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Cedrus atlanticaX | Atlas cedar | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Cedrus deodaraX | deodar cedar | Low | Low | Low | Moderate | Moderate | Moderate |
TX | Cedrus libaniX | cedar of Lebanon | Low | Moderate | Low | Moderate | Unknown | Unknown |
TX | Ceiba insignis (Chorisia insignis)X | white floss silk tree | Moderate | Not App. | Low | Low | Not App. | Moderate |
TX | Ceiba speciosa (Chorisia speciosa)X | floss silk tree | Low | Not App. | Low | Low | Not App. | Moderate |
TX | Celtis australisX | European hackberry | Low | Moderate | Not App. | Not App. | Moderate | Moderate |
TX | Celtis occidentalisX | common hackberry | Low | Low | Not App. | Moderate | Moderate | Moderate |
TX | Celtis pallidaX | desert hackberry | Unknown | Unknown | Unknown | Unknown | Low | Low |
TX | Celtis reticulataX | western hackberry | Low | Low | Low | Very Low | Low | Low |
TX | Celtis sinensisX | Chinese hackberry | Low | Moderate | Not App. | Moderate | Moderate | Moderate |
PX | Centaurea cinerariaX | dusty miller (cineraria) | Low | Low | Moderate | Moderate | Moderate | Moderate |
PX | Centaurea dealbataX | Persian knapweed | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Centaurea gymnocarpaX | velvet centaurea | Low | Low | Moderate | Moderate | Not App. | Unknown |
PX | Centaurea montanaX | perennial cornflower | Low | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Centaurea rupestrisX | centaurea (rupestris) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Centranthus ruberX | red valerian | Very Low | Very Low | Low | Low | Moderate | Moderate |
PX | Centratherum punctatumX | porcupine flower | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Cephalanthus occidentalisX | button bush | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Cephalocereus spp.X | old man cactus | Very Low | Not App. | Very Low | Low | Low | Low |
GcX | Cephalophyllum spp.X | ice plant (Cephalophyllum) | Low | Low | Low | Low | Unknown | Unknown |
SX | Cephalotaxus harringtonia cvs.X | Japanese plum yew | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
GcX | Cerastium tomentosumX | snow in summer | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Ceratonia siliqua X | carob | Low | Low | Low | Low | Not App. | Low |
SX | Ceratopetalum gummiferum 'Albery's Red'X | festival bush | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Ceratostigma abyssinicumX | African plumbago | Low | Not App. | Low | Moderate | Moderate | Moderate |
SX | Ceratostigma griffithiiX | Burmese plumbago | Low | Moderate | Low | Moderate | Moderate | Moderate |
GcXSX | Ceratostigma minusX | ceratostigma (minus) | Moderate | Moderate | Low | Unknown | Unknown | Unknown |
GcX | Ceratostigma plumbaginoidesX | dwarf plumbago | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Ceratostigma willmottianumX | Chinese plumbago | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PmXSX | Ceratozamia hildaeX | bamboo cycad | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Cercidiphyllum japonicumX | Katsura tree | Moderate | Moderate | Moderate | Unknown | Not App. | Not App. |
TX | Cercidium (See Parkinsonia)X | | | | | | | |
TX | Cercis canadensisX | eastern redbud | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Cercis chinensisX | Chinese redbud | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SXTX | Cercis mexicanaX | Mexican redbud | Low | Low | Low | Moderate | Unknown | Unknown |
TX | Cercis occidentalisX | western redbud | Very Low | Very Low | Low | Low | Moderate | Moderate |
TX | Cercis racemosaX | chain-flowered redbud | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Cercis reniformisX | southwest redbud | Low | Low | Unknown | Unknown | Unknown | Unknown |
SXTX | Cercis siliquastrumX | Judas tree | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Cercocarpus betuloidesX | mountain ironwood | Very Low | Very Low | Very Low | Very Low | Very Low | Not App. |
SX | Cercocarpus ledifoliusX | curl-leaf mountain mahogany | Very Low | Unknown | Not App. | Low | Not App. | Not App. |
SX | Cercocarpus minutiflorusX | San Diego mountain mahogany | Low | Unknown | Very Low | Very Low | Not App. | Not App. |
SX | Cercocarpus montanusX | mountain mahogany | Very Low | Unknown | Not App. | Unknown | Not App. | Not App. |
SXSuX | Cereus hildmannianusX | night-blooming cereus | Very Low | Unknown | Unknown | Very Low | Not App. | Low |
SXSuX | Cereus peruvianusX | Peruvian apple cactus | Very Low | Unknown | Very Low | Low | Not App. | Low |
SXV | Cestrum auranticumX | orange cestrum | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Cestrum elegansX | red cestrum | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
SX | Cestrum fasciculatum var. 'Newellii'X | red cestrum | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Cestrum nocturnumX | night jessamine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Cestrum parquiX | Chilean jessamine | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Cestrum purpureumX | red cestrum | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Cestrum x 'Orange Peel'X | orange peel cestrum | Moderate | Unknown | Moderate | Unknown | Unknown | Moderate |
SX | Chaenomeles cvs.X | flowering quince | Low | Low | Moderate | Moderate | Low | Moderate |
PX | Chaenorhinum glareosumX | dwarf snapdragon | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Chamaebatia australisX | southern mountain misery | Unknown | Not App. | Unknown | Low | Unknown | Unknown |
GcX | Chamaebatia foliolosaX | mountain misery | Unknown | Not App. | Unknown | Not App. | Unknown | Unknown |
SXTX | Chamaecyparis spp. (CA native, non-native species)X | false cypress | Moderate | Moderate | High | Not App. | Not App. | Not App. |
PmXSX | Chamaedorea spp.X | chamaedorea | Not App. | Not App. | High | High | Not App. | Not App. |
GcX | Chamaemelum nobile (Anthemis nobilis)X | chamomile | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
PmXSX | Chamaerops humilisX | Mediterranean fan palm | Low | Low | Low | Low | Moderate | Moderate |
SX | Chamelaucium cvs.X | wax flower | Low | Unknown | Low | Unknown | Not App. | Low |
SX | Chamelaucium uncinatumX | Geraldton wax flower | Low | Low | Low | Low | Not App. | Moderate |
BuX | Chasmanthe aethiopicaX | cobra lily | Low | Unknown | Low | Very Low | Unknown | Unknown |
GX | Chasmanthium latifoliumX | sea oats | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Cheilanthes argenteaX | silver cloak fern | Low | Unknown | Low | Unknown | Unknown | Unknown |
PX | Cheilanthes covilleiX | Coville's lip fern | Low | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Cheilanthes lanosaX | hairy lip fern | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
PX | Cheilanthes sinuataX | wavy cloak fern | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Cheiranthus cheiri (See Erysimum cheiri)X | | | | | | | |
PX | Chelone lyonii 'Hot Lips'X | hot lips turtle head | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
TX | Chilopsis linearisX | desert willow | Very Low | Very Low | Very Low | Low | Moderate | Moderate |
SX | Chimonanthus praecoxX | wintersweet | Unknown | Low | Moderate | Unknown | Unknown | Unknown |
BaXSX | Chimonobambusa marmorea (Arundinaria)X | marbled bamboo | Low | Low | Moderate | Moderate | Not App. | Moderate |
BaXSXTX | Chimonobambusa quadrangularisX | square-stemmed bamboo | Low | Low | Moderate | Moderate | Not App. | Moderate |
TX | Chionanthus retususX | Chinese fringe tree | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Chionanthus virginicusX | white fringe tree | Moderate | Not App. | Not App. | Unknown | Unknown | Unknown |
GX | Chionochloa rubraX | red tussock grass | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Chiranthodendron pentadactylon X | monkey's hand tree | Low | Low | Low | Low | Unknown | Unknown |
BuX | Chlorogalum pomeridianumX | soap plant | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Chlorophytum comosum (shade)X | spider plant | Low | Low | Low | Moderate | Not App. | Moderate |
SX | Choisya dumosa var. arizonicaX | Arizona mock orange | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Choisya ternataX | Mexican orange | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
PX | Chondropetalum elephantinumX | large cape rush | Low | Low | Low | Moderate | Unknown | Unknown |
PX | Chondropetalum mucronatumX | giant millet reed | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Chondropetalum tectorumX | cape reed | Low | Low | Low | Moderate | Unknown | Unknown |
TX | Chorisia insignis (See Ceiba insignis)X | | | | | | | |
TX | Chorisia speciosa (See Ceiba speciosa)X | | | | | | | |
SX | Chorizema 'Bush Flame'X | Bush flame pea | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
SX | Chorizema cordatumX | flame pea | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
SX | Chorizema dicksoniiX | yellow-eyed flame pea | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
V | Chorizema diversifoliaX | climbing flame pea | Moderate | Not App. | Low | Unknown | Unknown | Unknown |
SX | Chrysactinia mexicanaX | damianita daisy | Unknown | Unknown | Very Low | Low | Low | Low |
PX | Chrysanthemum frutescens (See Argyranthemum frutescens)X | | | | | | | |
PX | Chrysanthemum maximum (See Leucanthemum x superbum)X | | | | | | | |
PX | Chrysanthemum parthenium (See Tanacetum parthenium)X | | | | | | | |
PX | Chrysocephalum apiculatumX | common everlasting | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
PX | Chrysogonum virginianumX | golden star | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Chrysolepis chrysophyllaX | chinquapin | Low | Not App. | Not App. | Not App. | Unknown | Unknown |
GX | Chrysopogon zizanioides (Vetiveria zizanioides)X | vetiver | Moderate | Moderate | Moderate | Low | Unknown | Unknown |
PX | Chrysopsis villosa (See Heterotheca villosa)X | | | | | | | |
SX | Chrysothamnus nauseosusX | rabbit brush | Not App. | Not App. | Very Low | Low | Very Low | Low |
SX | Chusquea circinataX | Mexican plume bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Chusquea coronalisX | Mexican climbing bamboo | Moderate | Unknown | Moderate | High | Unknown | Unknown |
SX | Chusquea culeou (C. breviglumis)X | Chilean feather bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BaXSX | Chusquea foliosaX | highland bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BaXSX | Chusquea pittieriX | pittieri bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Cibotium glaucumX | Hawaiian tree fern | Not App. | Not App. | High | High | Not App. | Not App. |
PX | Cimicifuga ramosa (See Actaea simplex)X | | | | | | | |
TX | Cinnamomum camphoraX | camphor tree | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
PX | Cirsium occidentaleX | Venus thistle | Very Low | Low | Very Low | Low | Unknown | Unknown |
V | Cissus alata (C. rhombifolia)X | grape ivy | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
V | Cissus antarcticaX | kangaroo vine | Low | Low | Moderate | Moderate | Not App. | Unknown |
V | Cissus gongylodesX | winged-stem grape ivy | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Cissus hypoglaucaX | water vine | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
V | Cissus javana (C. discolor)X | rex begonia vine | Unknown | Unknown | Not App. | Unknown | Unknown | Unknown |
V | Cissus striata X | miniature grape ivy | Moderate | Not App. | Moderate | Unknown | Unknown | Unknown |
V | Cissus trifoliataX | treebine | Unknown | Not App. | Unknown | Unknown | Unknown | Low |
SX | Cistus incanus ssp. creticus (C.villosus)X | pink rockrose | Low | Unknown | Low | Very Low | Unknown | Moderate |
GcXSX | Cistus spp., cvs.X | rockrose | Low | Low | Low | Low | Moderate | Moderate |
SX | Citriobatus spinescensX | orange thorn | Not App. | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Citrus spp.X | orange, lemon, etc. | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
TX | Cladrastis kentukeaX | yellow wood | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Clematis armandiiX | evergreen clematis | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
V | Clematis brachiataX | traveler's joy | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Clematis hybrids, cvs.X | clematis | Moderate | Moderate | Moderate | High | Moderate | Moderate |
PX | Clematis integrifoliaX | bushy clematis | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
V | Clematis jackmaniiX | Jackman clematis | Moderate | Moderate | High | High | Unknown | Unknown |
V | Clematis lasianthaX | pipestem clematis | Low | Low | Very Low | Low | Not App. | Not App. |
V | Clematis ligusticifoliaX | western virgin's bower | Moderate | Moderate | Low | Low | Not App. | Not App. |
V | Clematis montanaX | anemone clematis | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Clematis paucifloraX | small-flowered clematis | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
V | Clematis tanguticaX | golden tiara | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
V | Clematis ternifloraX | sweet autumn clematis | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Clematis viticellaX | Italian clematis | Low | Moderate | Unknown | Moderate | Unknown | Unknown |
SX | Cleome isomerisX | bladder pod | Very Low | Very Low | Very Low | Very Low | Low | Low |
SX | Clerodendrum bungei (shade)X | cashmere bouquet | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Clerodendrum philippinumX | Chinese glory bower | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Clerodendrum quadriloculare 'Brandoni'X | starburst bush | Not App. | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Clerodendrum speciosumX | bleeding heart vine | Not App. | Moderate | Moderate | Not App. | Unknown | Unknown |
SX | Clerodendrum splendens X | flaming glorybower | Not App. | Not App. | Moderate | Moderate | Unknown | Unknown |
V | Clerodendrum thompsoniaeX | glory bower | Moderate | Moderate | Moderate | Not App. | Unknown | Unknown |
SXTX | Clerodendrum trichotomumX | harlequin glory bower | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Clerodendrum ugandenseX | butterfly bush | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Clethra alnifoliaX | summersweet | Moderate | Not App. | Unknown | Unknown | Unknown | Unknown |
SX | Cleyera japonicaX | sakaki | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Clianthus puniceusX | parrot's beak | Low | Low | Moderate | Moderate | Unknown | Unknown |
PX | Clinopodium chandleri (Satureja chandleri)X | San Miguel savory | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Clinopodium douglasii (Satureja douglasii)X | yerba buena | Low | Moderate | Moderate | Low | Unknown | Unknown |
PX | Clinopodium mimuloides (Satureja mimuloides)X | monkeyflower savory | Unknown | Moderate | Moderate | Moderate | Unknown | Unknown |
BuX | Clintonia andrewsiana (shade)X | red clintonia | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Clivia caulescens (shade)X | stalked clivia | Moderate | Low | Low | Moderate | Not App. | Not App. |
PX | Clivia miniataX | clivia | Moderate | Moderate | Low | Moderate | Not App. | Not App. |
PX | Clivia nobilisX | drooping clivia | Moderate | Unknown | Low | Moderate | Not App. | Not App. |
PX | Clivia spp., hybrids, cvs.X | hybrid clivia | Moderate | Low | Low | Moderate | Not App. | Not App. |
V | Clytostoma callistegioidesX | violet trumpet vine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Cneoridium dumosumX | bushrue | Unknown | Low | Very Low | Low | Low | Low |
SX | Cneorum tricocconX | spurge-olive | Low | Low | Low | Unknown | Unknown | Unknown |
SXTX | Cocculus laurifoliusX | laurel leaf cocculus | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
BuX | Colchicum agrippinumX | autumn crocus | Low | Unknown | Unknown | Moderate | Moderate | Moderate |
SX | Coleogyne ramosissimaX | blackbrush | Unknown | Unknown | Not App. | Very Low | Very Low | Unknown |
SX | Coleonema albumX | white breath of heaven | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Coleonema pulchellum (C. pulchrum)X | breath of heaven | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Colletia paradoxaX | anchor plant | Low | Unknown | Low | Low | Unknown | Not App. |
PX | Colocasia spp.X | Taro | High | High | High | High | Unknown | Unknown |
SXTX | Comarostaphylis diversifolia (Arctostaphylos diversifolia)X | summer holly | Very Low | Low | Very Low | Low | Not App. | Low |
V | Combretum fruticosumX | orange flame vine | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Commelina coelestisX | dayflower | Moderate | Unknown | Unknown | Low | Unknown | Unknown |
PX | Commelina dianthifoliaX | dayflower | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Condalia globosaX | bitter snakewood | Unknown | Unknown | Unknown | Low | Unknown | Unknown |
SX | Condea emoryi (Hyptis emoryi)X | desert lavender | Not App. | Unknown | Very Low | Very Low | Low | Low |
PX | Coniogramme japonicaX | Japanese bamboo fern | Unknown | Unknown | High | Unknown | Unknown | Unknown |
PX | Conoclinium greggii 'Boothill'X | blue mist flower | Unknown | Unknown | Unknown | Unknown | Moderate | Moderate |
SX | Constancea nevinii (Eriophyllum nevinii)X | island snowflake | Low | Unknown | Very Low | Not App. | Unknown | Unknown |
PX | Convallaria majalisX | lily-of-the-valley | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
SX | Convolvulus cneorumX | bush morning glory | Low | Low | Low | Low | Low | Low |
GcX | Convolvulus mauritanicusX | ground morning glory | Low | Low | Low | Low | Moderate | Moderate |
GcXSX | Coprosma petriei 'Verde Vista'X | Verde Vista coprosma | Low | Low | Moderate | Moderate | Not App. | Not App. |
SX | Coprosma repens, cvs.X | mirror plant | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
GcXSX | Coprosma x kirkiiX | creeping coprosma | Low | Low | Moderate | Moderate | Not App. | Not App. |
TX | Cordia boissieri X | Texas olive | Unknown | Unknown | Low | Low | Low | Low |
SXTX | Cordia parvifoliaX | little leaf cordia | Unknown | Unknown | Low | Low | Low | Low |
TX | Cordyline australisX | New Zealand cabbage tree | Low | Moderate | Low | Moderate | Moderate | Moderate |
SX | Cordyline baueriX | Bauer's dracaena | Moderate | Unknown | Moderate | Unknown | Not App. | Not App. |
SX | Cordyline fruticosa (C. terminalis)X | Hawaiian ti | Moderate | Not App. | High | Not App. | Not App. | Not App. |
SX | Cordyline glaucaX | green ti plant | Not App. | Not App. | Unknown | Unknown | Not App. | Not App. |
SX | Cordyline hybrids, cvs.X | cordyline hybrids, cvs. | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SXTX | Cordyline indivisa X | blue dracaena palm | Low | Low | Unknown | Unknown | Unknown | Unknown |
SX | Cordyline strictaX | palm lily | Unknown | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Cordyline terminalis (See C. fruticosa)X | | | | | | | |
PX | Coreopsis auriculata 'Nana'X | dwarf coreopsis | Low | Low | Low | Low | Moderate | Moderate |
PX | Coreopsis gigantea (See Leptosyne gigantea)X | | | | | | | |
PX | Coreopsis grandifloraX | large flower tickseed | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Coreopsis lanceolataX | lanceleaf tickseed | Low | Low | Low | Low | Moderate | Moderate |
PX | Coreopsis maritima (See Leptosyne maritima)X | | | | | | | |
PX | Coreopsis roseaX | pink tickseed | Low | Unknown | Unknown | Unknown | Moderate | Moderate |
PX | Coreopsis verticillata cvs.X | threadleaf coreopsis | Low | Low | Low | Low | Moderate | Moderate |
PX | Corethrogyne filaginifolia 'Silver Carpet' (See Lessingia)X | | | | | | | |
PX | Corethrogyne filaginifolia californica (See Lessingia)X | | | | | | | |
TX | Cornus 'Eddie's White Wonder'X | Eddie's White Wonder dogwood | Moderate | Moderate | Unknown | High | Not App. | Not App. |
TX | Cornus albaX | red-barked dogwood | Moderate | Moderate | Unknown | Unknown | Not App. | Not App. |
TX | Cornus alternifoliaX | pagoda dogwood | Moderate | Unknown | Unknown | Not App. | Not App. | Not App. |
GcX | Cornus canadensisX | bunchberry | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Cornus capitataX | evergreen dogwood | Moderate | Moderate | Moderate | Unknown | Not App. | Not App. |
TX | Cornus controversaX | giant dogwood | Moderate | Unknown | Unknown | Not App. | Not App. | Not App. |
TX | Cornus drummondiiX | rough-leaf dogwood | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
TX | Cornus floridaX | eastern dogwood | Moderate | Moderate | High | High | Not App. | Not App. |
SX | Cornus glabrataX | brown dogwood | Moderate | High | Moderate | High | Not App. | Not App. |
TX | Cornus kousaX | Japanese dogwood | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Cornus kousa chinensisX | Chinese dogwood | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Cornus nuttalliiX | Audubon mountain dogwood | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Cornus omeiense 'Summer Passion'X | evergreen dogwood | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
SX | Cornus sanguineaX | blood twig dogwood | High | High | Unknown | High | Not App. | Not App. |
SX | Cornus sericeaX | American dogwood | High | High | High | High | Not App. | Not App. |
SX | Cornus sericea occidentalisX | western dogwood | High | Unknown | High | High | Not App. | Not App. |
SX | Cornus sericea sericea (C. stolonifera)X | red osier dogwood | High | High | High | High | Not App. | Not App. |
SX | Cornus stolonifera (See C. sericea sericea)X | | | | | | | |
TX | Cornus x rutgersensis X | Florida x kousa hybrids | Moderate | Unknown | Moderate | High | Not App. | Not App. |
SX | Corokia x virgataX | corokia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Coronilla valentina glaucaX | glaucus scorpion vetch | Moderate | Unknown | Low | Not App. | Unknown | Unknown |
SX | Correa spp., cvs.X | Australian fuchsia | Low | Low | Low | Low | Not App. | Unknown |
GX | Cortaderia selloana cvs.X | pampas grass | Very Low | Low | Low | Not App. | Moderate | Moderate |
PX | Corydalis cheilanthifolia 'Blue Panda'X | Blue Panda corydalis | Moderate | Not App. | Not App. | Not App. | Unknown | Unknown |
PX | Corydalis elataX | blue corydalis | Moderate | Not App. | Not App. | Not App. | Unknown | Unknown |
PX | Corydalis flexuosaX | fumewort | Moderate | Not App. | Not App. | Unknown | Unknown | Unknown |
SXTX | Corylopsis paucifloraX | winter hazel | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Corylopsis spicataX | winter hazel | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
SX | Corylus avellana contortaX | Harry Lauder's walking stick | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Corylus colurnaX | Turkish hazel | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Corylus cornuta subsp. californica (shade)X | California hazel | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
SXTX | Corylus maximaX | filbert | Low | Not App. | Not App. | Not App. | Not App. | Not App. |
TX | Corymbia citriodora (Eucalyptus citriodora)X | lemon scented gum | Low | Not App. | Low | Moderate | Not App. | Moderate |
TX | Corymbia ficifolia (Eucalyptus ficifolia)X | red flowering gum | Low | Not App. | Low | Moderate | Not App. | Not App. |
TX | Corymbia maculata (Eucalyptus maculata)X | spotted gum | Low | Not App. | Low | Moderate | Not App. | Moderate |
TX | Corymbia papuana (Eucalyptus papuana)X | ghost gum | Not App. | Unknown | Low | Low | Unknown | Unknown |
TX | Corymbia torelliana (Eucalyptus torelliana)X | cadaga | Not App. | Not App. | Low | Unknown | Unknown | Unknown |
GX | Corynephorus canescensX | clublawn grass | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Corynocarpus laevigataX | New Zealand laurel | Moderate | Not App. | Moderate | Not App. | Not App. | Not App. |
PX | Cosmos atrosanguineusX | chocolate cosmos | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Cota tinctoria (Anthemis tinctoria)X | golden marguerite | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SXTX | Cotinus coggygriaX | smoke tree | Low | Low | Low | Low | Low | Not App. |
SXTX | Cotinus obovatusX | American smoke tree | Low | Low | Unknown | Unknown | Unknown | Unknown |
SX | Cotoneaster acutifoliusX | Peking cotoneaster | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Cotoneaster apiculatusX | Cranberry cotoneaster | Low | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Cotoneaster coriaceus (C. lacteus, C.parneyi) X | red clusterberry | Low | Moderate | Low | Moderate | Moderate | Unknown |
GcX | Cotoneaster dammeri 'Coral Beauty'X | bearberry cotoneaster | Low | Low | Low | Moderate | Unknown | Not App. |
GcX | Cotoneaster dammeri 'Lowfast'X | bearberry cotoneaster | Low | Low | Low | Moderate | Unknown | Not App. |
SX | Cotoneaster glaucophyllusX | brightbead cotoneaster | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
GcX | Cotoneaster horizontalisX | rock cotoneaster | Low | Low | Low | Moderate | Moderate | Not App. |
| Cotoneaster lacteus (See C. coriaceus)X | | | | | | | |
SX | Cotoneaster parneyi (See C. coriaceus)X | | | | | | | |
SX | Cotoneaster salicifoliusX | willowleaf cotoneaster | Low | Unknown | Unknown | Moderate | Unknown | Unknown |
GcX | Cotoneaster salicifolius 'Emerald Carpet'X | willowleaf cotoneaster | Unknown | Unknown | Unknown | Moderate | Unknown | Not App. |
GcX | Cotoneaster salicifolius 'Repens'X | willowleaf cotoneaster | Moderate | Unknown | Unknown | Moderate | Unknown | Not App. |
SX | Cotoneaster spp. (shrubs)X | cotoneaster | Low | Low | Low | Moderate | Moderate | Moderate |
GcX | Cotoneaster spp. (ground covers)X | cotoneaster | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
PX | Cotula 'Silver Mound'X | cotula | High | High | Moderate | Unknown | Unknown | Unknown |
PX | Cotula hispidaX | Martian moondrops | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Cotula linearilobaX | silver button plant | High | High | Moderate | Unknown | Unknown | Unknown |
PXSX | Cotyledon spp.X | cotyledon | Low | Low | Low | Low | Not App. | Unknown |
SX | Coursetia axillarisX | baby bonnets | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Coursetia glandulosaX | baby bonnets | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Coursetia microphyllaX | baby bonnets | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Cowania mexicana (See Purshia stansburyana)X | | | | | | | |
PX | Craspedia globosaX | drumsticks | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSXSuX | Crassula spp. X | crassula | Low | Low | Low | Low | Not App. | Unknown |
TX | Crataegus spp. (CA native, non-native spp.)X | hawthorn | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
PXSuX | Cremnosedum nutansX | cremnosedum | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Crinodendron hookerianumX | lantern tree | Unknown | Moderate | Not App. | Unknown | Unknown | Unknown |
TX | Crinodendron pataguaX | lily-of-the-valley tree | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
BuX | Crinum spp.X | crinum lily, spider lily | Moderate | Moderate | Moderate | Moderate | Moderate | Unknown |
PX | Crocanthemum aldersonii (Helianthemum scoparium)X | sunrose | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Crocosmia hybrids (Tritonia)X | montbrieta | Low | Low | Low | Low | Not App. | Unknown |
SX | Crossosoma bigeloviiX | ragged rock flower | Unknown | Unknown | Not App. | Low | Unknown | Unknown |
SX | Crotalaria agatifloraX | canary-bird bush | Low | Not App. | Low | Moderate | Unknown | Unknown |
SX | Crowea 'Festival'X | pink wax flower | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Crowea exalataX | wax flower | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Cryptbergia 'Red Burst'X | Red Burst cryptbergia | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SXTX | Cryptomeria japonica X | Japanese cryptomeria | Moderate | High | High | High | Not App. | Not App. |
V | Cryptostegia grandifloraX | rubber vine | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Cunninghamia lanceolata 'Glauca'X | China fir | Moderate | Moderate | Moderate | Not App. | Unknown | Unknown |
TX | Cunonia capensisX | butterspoon tree | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Cupaniopsis anacardioidesX | carrotwood | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Cuphea 'David Verity' (all hybrids)X | large firecracker plant | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Cuphea 'Strybing Sunset'X | Strybing Sunset cigar plant | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
SX | Cuphea 'Yellow'X | Mexican heather | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Cuphea aequipetalaX | Mexican loosestrife | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Cuphea glutinosaX | sticky wax weed | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Cuphea hyssopifoliaX | false heather | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Cuphea igneaX | cigar plant | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
GcXSX | Cuphea llaveaX | bat-faced cuphea | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PXSX | Cuphea micropetalaX | candy corn plant | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
TX | Cupressus arizonica (See Hesperocyparis arizonica)X | | | | | | | |
TX | Cupressus arizonica ssp. arizonica (See Hesperocyparis stephensonii)X | | | | | | | |
TX | Cupressus arizonica var.glabra (See Hesperocyparis stephensonii)X | | | | | | | |
TX | Cupressus bakeri (See Hesperocyparis bakeri)X | | | | | | | |
TX | Cupressus cashmerianaX | Kashmir cypress | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Cupressus forbesii (See Hesperocyparis forbesii)X | | | | | | | |
TX | Cupressus goveniana (See Hesperocyparis goveniana)X | | | | | | | |
TX | Cupressus macnabiana (See Hesperocyparis macnabiana)X | | | | | | | |
TX | Cupressus macrocarpa (See Hesperocyparis macrocarpa)X | | | | | | | |
TX | Cupressus montana (See Hesperocyparis montana)X | | | | | | | |
TX | Cupressus nevadensis (See Hesperocyparis nevadensis)X | | | | | | | |
TX | Cupressus sargentii (See Hesperocyparis sargentii)X | | | | | | | |
TX | Cupressus sempervirensX | Italian cypress | Low | Moderate | Low | Low | Moderate | Moderate |
PX | Curculigo capitulataX | palm grass | | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Cussonia paniculataX | little cabbage tree | Not App. | Not App. | Low | Unknown | Not App. | Unknown |
TX | Cussonia spicataX | cabbage tree | Low | Low | Low | Unknown | Unknown | Unknown |
SX | Cyathea cooperi (See Sphaeropteris cooperi)X | | | | | | | |
PmXSX | Cycas revolutaX | sago palm | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PmXSX | Cycas thouarsii (shade)X | Madagascar sago | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
BuX | Cyclamen coum (shade)X | hardy cyclamen | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
BuX | Cyclamen graecum (shade)X | Greek cyclamen | Low | Unknown | Unknown | Low | Unknown | Unknown |
BuX | Cyclamen hederifolium (shade)X | ivy leaf cyclamen | Very Low | Low | Low | Low | Unknown | Unknown |
BuX | Cyclamen persicum, hybrids (shade)X | Persian cyclamen | Low | Moderate | Moderate | Low | Not App. | Not App. |
SXTX | Cydonia oblongaX | Quince | Low | Low | Moderate | Low | Unknown | Unknown |
GcXPX | Cymbalaria muralisX | Kenilworth ivy | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GX | Cymbopogon citratusX | lemon grass | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
BuX | Cypella aquatilisX | water orchid | High | Unknown | Moderate | Unknown | Unknown | Unknown |
BuX | Cypella coelestisX | goblet flower | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
BuX | Cypella herbertiiX | Herbert's goblet flower | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
BuX | Cypella peruvianaX | goblet flower | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
BuX | Cypella plumbea (See Phalocallis coelestis)X | | | | | | | |
PX | Cyperus spp. (CA native, non-native spp.)X | umbrella sedge/papyrus | High | High | High | High | High | High |
PX | Cyphostemma juttaeX | tree grape | Not App. | Unknown | Very Low | Low | Unknown | Unknown |
BuX | Cyrtanthus brachyscyphusX | dobo lily | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
BuX | Cyrtanthus hybridsX | hybrid cyrtanthus | Moderate | Unknown | Low | Low | Unknown | Unknown |
BuX | Cyrtanthus mackenii ssp. cooperiX | ifafa lily | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Cyrtanthus obliquusX | Knysna lily | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Cyrtanthus purpureusX | fire lily | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Cyrtanthus sanguineusX | fire lily | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
PX | Cyrtomium falcatumX | Japanese holly fern | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Cyrtomium fortuneiX | fortune's holly fern | Unknown | Low | Moderate | Moderate | Unknown | Unknown |
SX | Cytisus spp.X | broom (Cytisus) | Low | Low | Not App. | Moderate | Not App. | Not App. |
GcX | Cytisus x kewensisX | Kew broom | Moderate | Moderate | Not App. | Unknown | Moderate | Unknown |
SX | Daboecia cantabricaX | Irish heath | Moderate | Unknown | Not App. | Not App. | Not App. | Not App. |
SX | Dahlia imperialisX | tree dahlia | Moderate | Moderate | Moderate | Moderate | Not App. | Unknown |
PX | Dahlia spp.X | dahlia | Moderate | Moderate | Moderate | High | Not App. | Not App. |
TX | Dais cotinifoliaX | pom-pom tree | Low | Unknown | Moderate | Not App. | Unknown | Unknown |
TX | Dalbergia sissooX | Indian rosewood | Not App. | Unknown | Low | Low | Not App. | Low |
SX | Dalea bicolorX | dalea (bicolor) | Not App. | Not App. | Low | Low | Low | Low |
GcX | Dalea capitataX | dalea (capitata) | Not App. | Not App. | Very Low | Low | Moderate | Moderate |
SX | Dalea dorychnioidesX | dalea (dorychnioides) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Dalea frutescensX | black dalea | Not App. | Not App. | Low | Not App. | Low | Low |
PX | Dalea gattingeri (Petalostemon purpureum)X | purple prairie clover | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Dalea greggiiX | trailing indigo bush | Unknown | Not App. | Low | Low | Low | Low |
SX | Dalea luteaX | dalea (lutea) | Not App. | Not App. | Not App. | Unknown | Unknown | Unknown |
GcX | Dalea orcuttii (now Marina orcuttii)X | Baja indigo bush | Not App. | Not App. | Low | Low | Not App. | Low |
SX | Dalea pulchraX | indigo/pea bush | Not App. | Not App. | Moderate | Not App. | Low | Low |
TX | Dalea spinosa (See Psorothamnus spinosus)X | | | | | | | |
SX | Dalea versicolorX | dalea (versicolor) | Not App. | Not App. | Moderate | Not App. | Low | Low |
V | Dalechampia dioscoreifoliaX | Costa Rican butterfly vine | Not App. | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXPX | Dampiera diversifoliaX | dampiera | Low | Not App. | Moderate | Unknown | Unknown | Unknown |
PX | Dampiera trigonaX | dampiera | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
GX | Danthonia californicaX | California oatgrass | Moderate | Moderate | Low | Moderate | Unknown | Unknown |
SX | Daphne caucasicaX | daphne (caucasia) | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Daphne odora X | winter daphne | Low | Low | Moderate | Moderate | Not App. | Not App. |
SX | Daphne x burkwoodiiX | Burkwood daphne | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Daphne x houtteana 'February Plum'X | February plum daphne | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Daphne x mantensianaX | Manten daphne | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Daphne x transatlanticaX | transatlantica daphne | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Darmera peltata (Peltiphyllum)X | umbrella plant/Indian rhubarb | High | High | High | Unknown | Unknown | Unknown |
GcX | Darwinia citriodora 'Seaspray'X | lemon-scented myrtle | Low | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Dasiphora fruticosa cvs. (Potentilla fruticosa)X | cinquefoil | Moderate | Moderate | Moderate | Not App. | Unknown | Not App. |
SXSuX | Dasylirion spp.X | desert spoon | Very Low | Very Low | Very Low | Low | Low | Low |
PX | Datura metel (fastuosa) X | devil's trumpet | Very Low | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Davallia fijiensis X | rabbit's foot fern | Moderate | Unknown | High | Moderate | Unknown | Unknown |
PX | Davallia trichomanoides X | squirrel's foot fern | Moderate | Moderate | Moderate | High | Not App. | Not App. |
TX | Davidia involucrataX | dove tree | Moderate | Not App. | Not App. | Not App. | Unknown | Unknown |
V | Decumaria barbara 'Chauga'X | chauga wild hydrangea | Unknown | Unknown | Unknown | Not App. | Unknown | Unknown |
TX | Delonix regiaX | royal poinciana | Not App. | Not App. | Moderate | Not App. | Not App. | Moderate |
GcX | Delosperma spp.X | ice plant (Delosperma) | Low | Low | Low | Low | Not App. | Low |
PX | Delphinium non-native spp.X | delphinium | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
BaXTX | Dendrocalamus asper X | giant Burmese timber bamboo | Not App. | Unknown | High | Unknown | Unknown | Unknown |
BaXTX | Dendrocalamus strictus X | male bamboo | Not App. | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Dendromecon harfordiiX | island bush poppy | Low | Very Low | Very Low | Low | Unknown | Unknown |
SX | Dendromecon rigidaX | tree poppy | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Dennstaedtia punctilobaX | N. American hay-scented fern | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Deppea splendensX | deppea | High | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Dermatobotrys saundersiiX | tree jockey | Moderate | Unknown | Low | Low | Unknown | Unknown |
GX | Deschampsia cespitosa, cvs.X | tufted hairgrass | Low | Low | Moderate | Not App. | Unknown | Unknown |
GX | Deschampsia elongataX | slender hairgrass | Unknown | Unknown | Moderate | Not App. | Unknown | Unknown |
GX | Deschampsia flexuosaX | crinkled hairgrass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Deutzia spp. X | bridal wreath | Moderate | Moderate | Moderate | Moderate | Unknown | Not App. |
PX | Dianella caerulea cvs.X | paroo lily | Moderate | High | Moderate | Moderate | Unknown | Unknown |
PX | Dianella ensifoliaX | umbrella dracena | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Dianella intermediaX | turutu | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Dianella prunina 'Utopia'X | Utopia flax lily | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Dianella revoluta cvs.X | flax lily | Moderate | Low | Low | Low | Unknown | Unknown |
PX | Dianella tasmanica (shade in desert)X | Tasman flax lily | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Dianthus spp.X | pink/carnation | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
PX | Diascia spp.X | twinspur | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Dicentra spp. (CA native, non-native spp.)X | bleeding heart | Moderate | Moderate | Moderate | High | Not App. | Not App. |
BuX | Dichelostemma spp.X | blue dicks | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Dichondra argentea X | silver dichondra | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Dichondra donelliana X | California ponysfoot | Low | Unknown | Unknown | Moderate | Unknown | Unknown |
GcX | Dichondra micranthaX | dichondra | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Dichondra occidentalisX | western dichondra | Low | Unknown | Very Low | Moderate | Unknown | Unknown |
GcX | Dichondra sericeaX | silver leaf pony's foot | Low | High | High | Moderate | Not App. | Not App. |
PX | Dichorisandra thyrsifloraX | blue ginger | Not App. | Not App. | High | Unknown | Not App. | Unknown |
PX | Dichroa febrifugaX | evergreen hydrangea | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Dicksonia antarctica (shade)X | Tasmanian tree fern | High | High | High | High | Not App. | Not App. |
PX | Dicliptera resupinataX | Arizona foldwing | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Dicliptera suberectaX | hummingbird plant | Low | Low | Low | Low | Unknown | Unknown |
PX | Dictamnus spp.X | burning bush/dittany | Low | Low | Unknown | Unknown | Unknown | Unknown |
PX | Dierama spp.X | fairy wand | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Dietes 'Jack Catlin' X | Jack Catlin fortnight lily | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Dietes bicolor, cvs.X | fortnight lily | Low | Low | Low | Moderate | Moderate | Moderate |
PX | Dietes butcherianaX | wide-leafed dietes | Unknown | Low | Moderate | Moderate | Unknown | Unknown |
PX | Dietes grandiflora, cvs.X | fairy iris | Low | Low | Low | Unknown | Unknown | Unknown |
PX | Dietes iridioides, cvs.X | fortnight lily | Low | Low | Low | Moderate | Moderate | Moderate |
PX | Digitalis dubia X | dwarf Spanish foxglove | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Digitalis ferrugineaX | rusty foxglove | Low | Unknown | Moderate | Moderate | Not App. | Not App. |
PX | Digitalis grandifloraX | big flowered foxglove | Moderate | Unknown | Unknown | Moderate | Not App. | Not App. |
PX | Digitalis laevigataX | Grecian foxglove | Moderate | Unknown | Unknown | Moderate | Not App. | Not App. |
PX | Digitalis lanataX | woolly foxglove | Low | Unknown | Unknown | Moderate | Not App. | Not App. |
PX | Digitalis luteaX | hardy/straw foxglove | Moderate | Moderate | Unknown | Moderate | Not App. | Not App. |
PX | Digitalis obscuraX | sunset foxglove | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
PX | Digitalis purpurea cvs.X | foxglove | Moderate | High | Moderate | Moderate | Not App. | Not App. |
PX | Digitalis x mertonensisX | foxglove | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PmXSXTX | Dioon spp.X | Mexican cycad | Not App. | Not App. | Moderate | Moderate | Moderate | Moderate |
TX | Diospyros kakiX | Japanese persimmon | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Diospyros texanaX | Texas persimmon | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Diospyros virginianaX | American persimmon | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Diospyros whyteanaX | wild coffee | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Diplacus (See Mimulus)X | | | | | | | |
SX | Diplolaena angustifolia 'Orange Urchin'X | yanchep rose | Low | Unknown | Low | Unknown | Unknown | Unknown |
SX | Diplolaena dampieri 'Feather Duster'X | southern diplolaena | Low | Unknown | Low | Unknown | Unknown | Unknown |
GcX | Disporopsis pernyi 'Sichuan Jade'X | Sichuan Jade Solomon's Seal | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Disporum cantonienseX | Chinese fairy bells | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Disporum hookeri (See Prosartes)X | | | | | | | |
PX | Disporum smithii (See Prosartes)X | | | | | | | |
GX | Distichlis spicata (marsh, reveg.)X | salt grass | Low | Very Low | Low | Low | Unknown | Unknown |
V | Distictis 'Rivers'X | royal trumpet vine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
V | Distictis buccinatoriaX | blood red trumpet vine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
V | Distictis laxifloraX | vanilla trumpet vine | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Distylium myricoidesX | blue leaf isu tree | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Dizygotheca elegantissima (See Schefflera elegantissima)X | | | | | | | |
PX | Dodecatheon spp. (non-native)X | shooting stars | Low | Low | Very Low | Very Low | Unknown | Unknown |
SX | Dodonaea adenophoraX | hopseed bush | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Dodonaea boroniifoliaX | hopseed bush | Low | Unknown | Low | Unknown | Unknown | Unknown |
GcX | Dodonaea procumbensX | hopseed bush (procumbens) | Low | Low | Low | Unknown | Unknown | Unknown |
SX | Dodonaea viscosaX | hopseed bush | Low | Low | Low | Moderate | Moderate | Moderate |
SX | Dodonaea viscosa 'Purpurea'X | purple hopseed bush | Low | Low | Low | Moderate | Moderate | Moderate |
V | Dolichos lablab (See Lablab purpureus)X | | | | | | | |
SXTX | Dombeya spp.X | dombeya | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Doodia mediaX | common rasp fern | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Doronicum orientale (D. caucasium)X | leopard's bane | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Doryanthes palmeriX | spear lily | Low | Not App. | Low | Low | Not App. | Not App. |
SX | Dorycnium hirsutumX | hairy canary clover | Not App. | Moderate | Low | Unknown | Unknown | Unknown |
GcX | Draba oligospermaX | yellow-flowered moss | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Dracaena cvs.X | dracaena | Not App. | Not App. | Moderate | Not App. | Unknown | Unknown |
TX | Dracaena dracoX | dragon tree | Low | Not App. | Very Low | Low | Not App. | Not App. |
PX | Dracocephalum rupestreX | meadow dragon's head | Moderate | Unknown | Not App. | Unknown | Unknown | Unknown |
PX | Dracocephalum ruyschianumX | dragon head | Moderate | Unknown | Not App. | Unknown | Unknown | Unknown |
PX | Dracunculus vulgarisX | voodoo lily | Low | Very Low | Low | Low | Unknown | Unknown |
V | Dregea sinensis X | dregea | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
BaXSX | Drepanostachyum falcatum (Arundinaria)X | blue bamboo | Low | Low | Moderate | Moderate | Not App. | Moderate |
BaXSX | Drepanostachyum hookerianumX | bamboo | Low | Low | Moderate | Moderate | Not App. | Moderate |
BuX | Drimiopsis maculataX | little white soldiers | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Drimys lanceolataX | mountain pepper | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Drimys winteriX | winter's bark | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Drosanthemum spp.X | ice plant (Drosanthemum) | Low | Low | Low | Low | Not App. | Not App. |
PX | Drymocallis glandulosa (Potentilla glandulosa)X | sticky cinquefoil | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Dryopteris argutaX | coastal wood fern | Moderate | Unknown | Low | Low | Unknown | Unknown |
PX | Dryopteris celsaX | log fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Dryopteris dilatataX | broad buckler fern | High | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Dryopteris erythrosoraX | wood fern | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Dryopteris filix-masX | male fern | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Dryopteris labordei 'Golden Mist'X | Golden Mist wood fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Dryopteris sieboldiiX | Seibold's wood fern | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Dryopteris x australisX | Dixie wood fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Duchesnea indicaX | Indian mock strawberry | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PXSuX | Dudleya spp.X | dudleya, live forever | Low | Very Low | Very Low | Low | Unknown | Unknown |
SX | Duranta erecta (D. repens)X | sky flower | Not App. | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Duranta stenostachyaX | Brazilian sky flower | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Dyckia spp.X | dyckia | Low | Unknown | Low | Low | Unknown | Low |
GcXPX | Dymondia margaretaeX | dymondia | Low | Low | Low | Low | Not App. | Not App. |
PmXTX | Dypsis decaryiX | triangle palm | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PmXSXTX | Dypsis lutescens (Areca)X | butterfly palm | Unknown | Unknown | High | Unknown | Unknown | Unknown |
PX | Dyssodia acerosa (See Thymophylla)X | | | | | | | |
PX | Dyssodia pentachaeta (See Thymophylla)X | | | | | | | |
TX | Ebenopsis ebano (Pithecellobium flexicaule)X | Texas ebony | Not App. | Unknown | Low | Low | Unknown | Low |
V | Eccremocarpus scaber cvs.X | Chilean glory vine | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PXSXSuX | Echeveria spp.X | hens and chickens | Low | Low | Low | Low | Not App. | Unknown |
PX | Echinacea spp.X | cone flower | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SXSuX | Echinocactus spp. (CA native, non-native spp.)X | barrel cactus | Very Low | Very Low | Very Low | Low | Not App. | Low |
PX | Echinops exaltatusX | globe thistle | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PXSuX | Echinopsis spp. (Trichocereus spp.)X | torch cactus | Low | Low | Low | Low | Low | Low |
PX | Echium 'Purple Tower'X | purple tower echium | Low | Low | Low | Low | Unknown | Unknown |
PX | Echium amoenumX | red feathers | Unknown | Unknown | Unknown | Low | Unknown | Unknown |
PXSX | Echium candicans (fastuosum)X | Pride of Madeira | Low | Low | Low | Low | Not App. | Not App. |
SX | Echium gentianoidesX | Tajinaste | Low | Unknown | Low | Very Low | Not App. | Not App. |
SX | Echium handienseX | Canary Island echium | Unknown | Unknown | Low | Moderate | Not App. | Not App. |
PXSX | Echium pininanaX | Pride of Teneriffe | Low | Low | Low | Not App. | Not App. | Not App. |
SX | Edgeworthia chrysanthaX | paper bush | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Edraianthus graminifoliusX | grassy bells | Low | Low | Unknown | Unknown | Unknown | Unknown |
PX | Edraianthus pumilioX | grassy bells | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Ehretia anacuaX | sandpaper tree | Unknown | Low | Low | Unknown | Unknown | Moderate |
SXTX | Elaeagnus angustifoliaX | Russian olive | Very Low | Low | Low | Low | Moderate | Moderate |
SX | Elaeagnus pungensX | silverberry | Low | Low | Low | Low | Moderate | Moderate |
SX | Elaeagnus x ebbingeiX | Ebbinge's silverberry | Low | Low | Unknown | Unknown | Moderate | Moderate |
TX | Elaeocarpus decipiensX | Japanese blueberry tree | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Elegia capensisX | fountain rush | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Elegia equisetaceaX | horsetail restio | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Eleocharis spp. (CA native, non-native spp.)X | spike rush | High | High | High | High | Unknown | Unknown |
SX | Eleutherococcus sieboldianus (Acanthopanax sieboldianus)X | five leaf aralia | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Elymus cinereus (Leymus cinereus)X | basin wild rye | Unknown | Unknown | Low | Low | Unknown | Unknown |
GX | Elymus condensatus, cvs. (Leymus condensatus)X | giant wild rye | Low | Low | Low | Low | Unknown | Unknown |
GX | Elymus triticoides (Leymus triticoides)X | creeping wild rye | Low | Low | Low | Low | Unknown | Unknown |
TX | Embothrium coccineumX | Chilean fire bush | Moderate | Not App. | Not App. | Not App. | Unknown | Unknown |
SX | Encelia actoniX | mountain bush sunflower | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
SX | Encelia californicaX | coast sunflower | Low | Not App. | Very Low | Low | Not App. | Very Low |
SX | Encelia farinosaX | brittle bush | Low | Not App. | Very Low | Very Low | Very Low | Very Low |
SX | Encelia frutescensX | green brittlebush | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
PmXSX | Encephalartos spp.X | bread cycad | Low | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Engelmannia pinnatifidaX | Engelmann daisy | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Enkianthus campanulatusX | red-veined enkianthus | Moderate | High | Unknown | Unknown | Unknown | Not App. |
SX | Ensete ventricosumX | Abyssinian banana | High | High | High | High | Not App. | Unknown |
PX | Eomecon chionantha (shade)X | snow poppy | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Epacris gunniiX | Australian heath | Moderate | Unknown | Not App. | Unknown | Unknown | Unknown |
SX | Ephedra nevadensisX | Nevada ephedra | Very Low | Unknown | Very Low | Very Low | Very Low | Very Low |
SX | Ephedra tweedianaX | tramontana | Unknown | Low | Low | Unknown | Unknown | Unknown |
SX | Ephedra viridisX | green Mormon tea | Low | Low | Very Low | Very Low | Very Low | Unknown |
PX | Epidendrum (reed stem hybrids)X | epidendrum | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
PX | Epilobium spp. (Zauschneria), cvs.X | California fuchsia | Low | Low | Very Low | Low | Moderate | Moderate |
GcX | Epimedium grandiflorumX | bishop's hat | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
GcX | Epimedium pinnatum (shade)X | fairy wings | Moderate | Unknown | Not App. | Unknown | Unknown | Unknown |
PX | Epipactis giganteaX | stream orchid | Moderate | Moderate | Moderate | Moderate | High | Unknown |
PX | Equisetum spp. (CA native, non-native spp.)X | horsetail | High | High | High | High | Moderate | Moderate |
GX | Eragrostis chloromelasX | blue love grass | Unknown | Unknown | Low | Low | Unknown | Unknown |
GX | Eragrostis elliottii 'Tallahassee Sunset'X | Elliott's lovegrass | Unknown | Low | Low | Low | Unknown | Unknown |
GX | Eragrostis spectabilisX | purple love grass | Unknown | Low | Unknown | Low | Unknown | Unknown |
SX | Eremophila glabraX | emu bush | Low | Low | Low | Low | Not App. | Low |
SX | Eremophila laaniiX | emu bush | Low | Unknown | Low | Unknown | Unknown | Unknown |
SX | Eremophila maculataX | spotted emu bush | Low | Low | Low | Low | Low | Low |
SX | Eremophila racemosaX | Easter egg bush | Low | Unknown | Low | Low | Low | Low |
SX | Eremophila x 'Summertime Blue'X | Summertime Blue emu | Unknown | Unknown | Low | Unknown | Low | Low |
GX | Erianthus ravennae (See Saccharum ravennae)X | | | | | | | |
PX | Eriastrum densifolium elongatumX | giant woolly star | Very Low | Unknown | Very Low | Very Low | Unknown | Unknown |
GcXSX | Erica spp.X | heath | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
SX | Ericameria arborescensX | golden fleece | Very Low | Unknown | Very Low | Low | Unknown | Unknown |
SX | Ericameria cuneataX | compact goldenbush | Low | Unknown | Very Low | Low | Unknown | Unknown |
SX | Ericameria ericoidesX | California goldenbush | Low | Moderate | Low | Low | Unknown | Unknown |
SX | Ericameria laricifoliaX | turpentine bush | Unknown | Not App. | Very Low | Low | Low | Low |
SX | Ericameria linearifoliaX | interior golden bush | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Erigeron 'Wayne Roderick'X | Wayne Roderick daisy | Moderate | Moderate | Low | Low | Not App. | Not App. |
PX | Erigeron divergensX | native fleabane | Unknown | Unknown | Unknown | Unknown | Moderate | Moderate |
PX | Erigeron foliosus X | leafy fleabane | Low | Unknown | Very Low | Unknown | Unknown | Unknown |
PX | Erigeron formosissimusX | fleabane | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Erigeron glaucusX | beach aster | Low | Moderate | Low | Moderate | Not App. | Not App. |
PX | Erigeron karvinskianusX | fleabane | Low | Low | Low | Moderate | Moderate | Moderate |
PX | Erigeron philadelphicusX | Philadelphia daisy | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Erigeron speciosusX | Oregon fleabane | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Erigeron x moerheimiiX | pink Santa Barbara daisy | Low | Low | Moderate | Moderate | Unknown | Unknown |
SX | Eriobotrya 'Coppertone'X | coppertone loquat | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Eriobotrya deflexaX | bronze loquat | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
TX | Eriobotrya japonicaX | loquat | Low | Low | Moderate | Moderate | Not App. | Moderate |
SX | Eriodictyon crassifoliumX | thickleaf yerba santa | Low | Very Low | Very Low | Very Low | Unknown | Unknown |
SX | Eriodictyon tomentosumX | woolly yerba santa | Low | Very Low | Very Low | Very Low | Very Low | Unknown |
SX | Eriodictyon trichocalyxX | smooth leaf yerba santa | Unknown | Unknown | Very Low | Very Low | Unknown | Unknown |
SX | Eriogonum arborescensX | Santa Cruz Island buckwheat | Very Low | Low | Very Low | Very Low | Unknown | Unknown |
SX | Eriogonum cinereumX | ashy-leaf buckwheat | Unknown | Low | Very Low | Very Low | Unknown | Unknown |
PX | Eriogonum crocatumX | saffron buckwheat | Low | Low | Very Low | Low | Unknown | Unknown |
| Eriogonum elongatumX | wand buckwheat | | | Very Low | Very Low | | |
GcX | Eriogonum fasciculatum 'Bruce Dickinson'X | Bruce Dickenson buckwheat | Unknown | Low | Very Low | Very Low | Unknown | Unknown |
GcX | Eriogonum fasciculatum 'Dana Point'X | Dana Point buckwheat | Unknown | Low | Very Low | Very Low | Unknown | Unknown |
GcX | Eriogonum fasciculatum 'Theodore Payne'X | Theodore Payne buckwheat | Low | Low | Very Low | Very Low | Unknown | Unknown |
GcX | Eriogonum fasciculatum 'Warriner Lytle'X | Warriner Lytle buckwheat | Low | Low | Very Low | Very Low | Unknown | Unknown |
SX | Eriogonum fasciculatum, cvs. (not listed above)X | California buckwheat | Very Low | Very Low | Very Low | Very Low | Very Low | Very Low |
SX | Eriogonum giganteumX | St. Catherine's lace | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Eriogonum grande rubescensX | San Miguel Island buckwheat | Low | Low | Very Low | Low | Unknown | Unknown |
SX | Eriogonum latifoliumX | coast buckwheat | Low | Low | Low | Low | Unknown | Unknown |
SX | Eriogonum parvifoliumX | cliff buckwheat | Low | Moderate | Very Low | Low | Unknown | Unknown |
PXSX | Eriogonum spp. (CA native, non-native spp.)X | buckwheat | Low | Low | Very Low | Low | Low | Low |
SX | Eriogonum umbellatum, cvs.X | sulphur-flower buckwheat | Low | Moderate | Low | Low | Unknown | Unknown |
PX | Eriophyllum confertiflorumX | golden yarrow | Low | Low | Very Low | Very Low | Unknown | Unknown |
PX | Eriophyllum lanatum, cvs.X | woolly sunflower | Low | Low | Low | Low | Unknown | Unknown |
SX | Eriophyllum nevinii (See Constancea nevinii)X | | | | | | | |
SX | Eriophyllum staechadifoliumX | lizard's tail | Low | Low | Low | Not App. | Unknown | Unknown |
PXSX | Eriostemon myoporoides (Philotheca myoporoides)X | long leaf wax flower | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXPX | Erodium chamaedryoides (See E. reichardii)X | | | | | | | |
GcXPX | Erodium chrysanthumX | cranesbill (chrysanthum) | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Erodium corsicumX | heron's bill | Unknown | Moderate | Unknown | Moderate | Unknown | Unknown |
GcXPX | Erodium reichardii (E. chaemedryoides)X | alpine geranium | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Erodium x kolbianumX | crane's bill | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Erodium x variabile cvs.X | hybrid crane's bill | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Eryngium alpinumX | alpine sea holly | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Eryngium alternatumX | Mexican sea holly | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Eryngium amethystinumX | amethyst sea holly | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Eryngium maritimumX | sea holly | Moderate | Moderate | Low | Low | Unknown | Unknown |
PX | Eryngium pandanifoliumX | giant sea holly | Moderate | Unknown | Moderate | Low | Unknown | Unknown |
PX | Eryngium planumX | blue sea holly | Moderate | Moderate | Low | Unknown | Unknown | Unknown |
PX | Eryngium variifoliumX | sea holly | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Erysimum 'Bowles Mauve'X | Bowles Mauve wallflower | Low | Low | Moderate | Moderate | Moderate | Unknown |
PX | Erysimum 'Jubilee'X | jubilee wallflower | Low | Low | Low | Unknown | Unknown | Unknown |
PX | Erysimum 'Wenlock Beauty'X | Wenlock Beauty wallflower | Low | Moderate | Low | Unknown | Unknown | Unknown |
PX | Erysimum cheiri (Cheiranthus cheiri)X | wallflower | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Erysimum concinnum X | wallflower | Low | Low | Low | Low | Unknown | Unknown |
PX | Erysimum helveticumX | wallflower | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Erysimum hieraciifoliumX | Siberian wallflower | Low | Low | Low | Unknown | Unknown | Unknown |
PX | Erysimum insulareX | island wallflower | Low | Low | Very Low | Unknown | Unknown | Unknown |
PX | Erysimum linifolium X | wallflower | Low | Low | Low | Moderate | Unknown | Unknown |
PX | Erysimum menziesii X | Pt. Reyes wallflower | Low | Low | Low | Low | Unknown | Unknown |
PX | Erysimum pulchellumX | wallflower | Low | Low | Low | Unknown | Unknown | Unknown |
PX | Erysimum suffrutescens X | suffrutescent wallflower | Low | Low | Unknown | Unknown | Unknown | Unknown |
PX | Erysimum variegatumX | purple wallflower | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Erythrina abyssinicaX | Abyssinian coral tree | Not App. | Unknown | Low | Unknown | Not App. | Moderate |
TX | Erythrina arborescensX | sunshine tree | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Erythrina caffraX | Kaffir bloom coral tree | Moderate | Not App. | Low | Moderate | Not App. | Not App. |
TX | Erythrina coralloides X | naked coral tree | Unknown | Unknown | Low | Moderate | Not App. | Not App. |
SXTX | Erythrina crista-galliX | cockspur coral tree | Moderate | Moderate | Low | Low | Not App. | Moderate |
TX | Erythrina falcataX | evergreen coral tree | Not App. | Not App. | Low | Not App. | Not App. | Not App. |
SX | Erythrina flabelliformisX | coral bean | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Erythrina herbaceaX | naked coral shrub | Unknown | Unknown | Low | Moderate | Unknown | Unknown |
TX | Erythrina humeanaX | Natal coral tree | Not App. | Moderate | Low | Moderate | Not App. | Not App. |
TX | Erythrina speciosaX | coral tree | Unknown | Unknown | Low | Unknown | Not App. | Not App. |
TX | Erythrina x bidwilliiX | Bidwell's coral bean | Low | Low | Low | Moderate | Not App. | Not App. |
TX | Erythrina x sykesiiX | Sykes coral tree | Not App. | Not App. | Low | Low | Not App. | Not App. |
SX | Escallonia spp., cvs.X | escallonia | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Eschscholzia californica (annual in desert)X | California poppy | Very Low | Very Low | Very Low | Very Low | Not App. | Not App. |
SX | Espostoa guentheri (Vatricania, Cephalocereus)X | cactus | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Espostoa lanataX | Peruvian old man cactus | Unknown | Unknown | Very Low | Low | Low | Low |
SX | Eucalyptus 'Moon Lagoon'X | fine-leafed mallee | Unknown | Unknown | Low | Unknown | Unknown | Low |
TX | Eucalyptus camaldulensisX | red gum | Low | Low | Low | Low | Moderate | Moderate |
TX | Eucalyptus campaspeX | silver gimlet | Unknown | Low | Moderate | Unknown | Not App. | Moderate |
TX | Eucalyptus cinereaX | ash leaved gum, silver dollar tree | Very Low | Low | Low | Moderate | Not App. | Moderate |
TX | Eucalyptus citriodora (See Corymbia citriodora)X | | | | | | | |
TX | Eucalyptus cladocalyxX | sugar gum | Low | Not App. | Low | Low | Not App. | Not App. |
TX | Eucalyptus conferruminata (lehmannii)X | bushy yate | Low | Low | Low | Low | Not App. | Not App. |
TX | Eucalyptus curtisiiX | Plunkett mallee | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
TX | Eucalyptus dalrympleanaX | mountain white gum | Low | Not App. | Unknown | Unknown | Unknown | Unknown |
TX | Eucalyptus degluptaX | mindinao gum | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Eucalyptus erythrocorysX | red cap gum | Low | Low | Low | Moderate | Not App. | Moderate |
TX | Eucalyptus erythronemaX | red-flowered mallee | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Eucalyptus ficifolia (See Corymbia ficifolia)X | | | | | | | |
TX | Eucalyptus formaniiX | Forman's mallee | Unknown | Unknown | Low | Unknown | Unknown | Low |
TX | Eucalyptus globulusX | blue gum | Low | Low | Low | Moderate | Not App. | Moderate |
TX | Eucalyptus grandisX | flooded/rose gum | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Eucalyptus gunniiX | cider gum | Low | Low | Low | Low | Unknown | Unknown |
SX | Eucalyptus kruseanaX | book-leaf mallee | Very Low | Not App. | Low | Unknown | Not App. | Unknown |
TX | Eucalyptus largiflorensX | black box | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Eucalyptus leucoxylonX | white ironbark | Low | Low | Low | Low | Not App. | Moderate |
TX | Eucalyptus loxophlebaX | York gum | Unknown | Very Low | Unknown | Very Low | Not App. | Not App. |
TX | Eucalyptus macrandraX | long flowered marlock | Very Low | Very Low | Very Low | Low | Not App. | Low |
TX | Eucalyptus maculata (See Corymbia maculata)X | | | | | | | |
TX | Eucalyptus microthecaX | coolibah | Low | Low | Low | Low | Moderate | Moderate |
TX | Eucalyptus neglectaX | omeo gum | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Eucalyptus nicholiiX | Nichol's willow leaf peppermint | Low | Low | Low | Moderate | Moderate | Moderate |
TX | Eucalyptus papuana (See Corymbia papuana)X | | | | | | | |
TX | Eucalyptus parvulaX | small-leaved gum | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Eucalyptus polyanthemosX | silver dollar gum | Low | Low | Low | Low | Moderate | Moderate |
TX | Eucalyptus populneaX | poplar box | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Eucalyptus preissianaX | bell mallee | Very Low | Not App. | Low | Unknown | Not App. | Unknown |
TX | Eucalyptus pulverulentaX | silver mountain gum | Low | Moderate | Low | Moderate | Not App. | Moderate |
TX | Eucalyptus robustaX | swamp mahogany | Low | Low | Low | Low | Not App. | Not App. |
TX | Eucalyptus rudisX | flooded gum | Low | Low | Low | Low | Moderate | Moderate |
TX | Eucalyptus salignaX | Sydney blue gum | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Eucalyptus salmonophloiaX | salmon gum | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Eucalyptus salubrisX | gimlet | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Eucalyptus sargentiiX | Salt River mallet | Low | Unknown | Unknown | Low | Not App. | Low |
TX | Eucalyptus sideroxylonX | red iron bark | Low | Low | Low | Low | Moderate | Moderate |
TX | Eucalyptus spathulataX | swamp mallee | Low | Not App. | Low | Low | Not App. | Moderate |
TX | Eucalyptus steedmaniiX | Steedman's gum | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Eucalyptus stellulataX | black sallee | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Eucalyptus torelliana (See Corymbia torelliana)X | | | | | | | |
TX | Eucalyptus torquataX | coral gum | Low | Low | Low | Moderate | Not App. | Moderate |
TX | Eucalyptus viminalisX | manna gum | Low | Low | Low | Moderate | Not App. | Moderate |
TX | Eucalyptus woodwardiiX | lemon-flowered gum | Very Low | Unknown | Low | Unknown | Unknown | Low |
BuX | Eucomis autumnalisX | pineapple lily | Moderate | Not App. | Moderate | Unknown | Unknown | Unknown |
BuX | Eucomis bicolor hybridsX | pineapple lily | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BuX | Eucomis comosa cvs.X | black sally | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
BuX | Eucomis pallidiflora ssp. pole-evansiiX | giant pineapple lily | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Eucryphia glutinosaX | hardy eucryphia | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
TX | Eucryphia lucida (billardieri)X | leatherwood | Moderate | Moderate | Unknown | Not App. | Unknown | Unknown |
TX | Eucryphia x intermediaX | eucryphia | Moderate | Moderate | Unknown | Not App. | Unknown | Unknown |
SX | Eucryphia x nymansensis 'Mount Usher'X | Mt. Usher leatherwood | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
TX | Eugenia involucrataX | cherry of the Rio Grande | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Euonymus alatusX | burning bush | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
GcX | Euonymus fortuneiX | purple winter creeper | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
V | Euonymus fortunei radicansX | winter creeper | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Euonymus japonicusX | evergreen euonymus | Low | Low | Moderate | Moderate | Moderate | Moderate |
SX | Euonymus kiautschovicusX | euonymus | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Euonymus occidentalisX | western burning bush | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Eupatorium spp. X | mistflower | Moderate | Moderate | Moderate | Unknown | Moderate | Moderate |
PXSuX | Euphorbia 'Ascot Rainbow'X | Ascot Rainbow spurge | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PXSuX | Euphorbia 'Blackbird'X | Blackbird spurge | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PXSuX | Euphorbia 'Breathless' cvs.X | Breathless spurge cvs. | Not App. | Moderate | Unknown | Unknown | Unknown | Unknown |
PXSuX | Euphorbia amygdaloidesX | wood spurge | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PXSuX | Euphorbia antisyphiliticaX | candelilla | Unknown | Unknown | Low | Low | Low | Low |
PXSuX | Euphorbia caput-medusae X | Medusa's head | Very Low | Unknown | Very Low | Low | Unknown | Unknown |
PXSuX | Euphorbia ceratocarpa X | horned spurge | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PXSuX | Euphorbia characiasX | Mediterranean spurge | Low | Low | Very Low | Low | Unknown | Unknown |
PXSuX | Euphorbia clandestinaX | volstruisnek | Unknown | Unknown | Very Low | Unknown | Unknown | Unknown |
SXSuXTX | Euphorbia cotinifoliaX | Caribbean copper plant | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PXSuX | Euphorbia cyparissias X | cypress spurge | Low | Very Low | Very Low | Unknown | Unknown | Unknown |
PXSuX | Euphorbia dulcisX | purple spurge | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PXSuX | Euphorbia feroxX | pin cushion | Very Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PXSuX | Euphorbia griffithiiX | Griffith's spurge | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SuXTX | Euphorbia ingensX | candelabra tree | Not App. | Not App. | Low | Low | Unknown | Low |
SXSuX | Euphorbia lambiiX | tree euphorbia | Not App. | Unknown | Low | Low | Unknown | Unknown |
SXSuX | Euphorbia leucodendronX | cat tails euphorbia | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SXSuX | Euphorbia mauritanicaX | pencil milk bush | Not App. | Unknown | Unknown | Low | Unknown | Unknown |
SXSuX | Euphorbia miliiX | crown of thorns | Not App. | Low | Low | Low | Not App. | Low |
SXSuX | Euphorbia miseraX | cliff spurge | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
PXSuX | Euphorbia myrsinitesX | creeping spurge | Low | Low | Low | Low | Unknown | Unknown |
PXSuX | Euphorbia polychroma (epithymoides)X | cushion spurge | Low | Low | Unknown | Unknown | Unknown | Unknown |
SXSuX | Euphorbia pulcherrimaX | poinsettia | Not App. | Not App. | Low | Moderate | Not App. | Low |
PXSuX | Euphorbia resiniferaX | Moroccan mound | Very Low | Unknown | Very Low | Unknown | Unknown | Unknown |
PXSuX | Euphorbia rigidaX | gopher spurge | Low | Low | Low | Low | Not App. | Low |
PXSuX | Euphorbia seguieriana nicicianaX | euphorbia | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SXSuX | Euphorbia tirucalliX | milk bush | Not App. | Not App. | Very Low | Not App. | Not App. | Low |
PXSuX | Euphorbia x lomi cvs. X | euphorbia | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PXSuX | Euphorbia x martinii, cvs.X | euphorbia | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SXSuX | Euphorbia xantiX | Baja spurge | Very Low | Unknown | Very Low | Low | Unknown | Unknown |
SX | Euryops chrysanthemoides (Gamolepis chrysanthemoides)X | African bush daisy | Moderate | Moderate | Moderate | Moderate | Not App. | Unknown |
PXSX | Euryops pectinatusX | euryops/shrub daisy | Low | Low | Low | Moderate | Moderate | Moderate |
PXSX | Euryops pectinatus viridisX | green euryops | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Euryops tysoniiX | Tyson's euryops | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Euthamia occidentalis X | western goldenrod | Unknown | Very Low | Low | Low | Unknown | Unknown |
PX | Evolvulus pilosus (nuttallianus)X | evolvulus | Unknown | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Exochorda x macrantha 'Niagara'X | Snow Day Surprise Pearl Bush | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Exochorda x macrantha 'The Bride'X | pearl bush | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Eysenhardtia orthocarpaX | kidneywood | Not App. | Unknown | Unknown | Unknown | Low | Low |
TX | Eysenhardtia polystachyaX | kidneywood | Not App. | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Eysenhardtia spinosaX | spiny kidneywood | Unknown | Unknown | Unknown | Unknown | Unknown | Moderate |
TX | Eysenhardtia texanaX | Texas kidneywood | Not App. | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Fabiana imbricataX | pichi | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Fagus sylvaticaX | European beech | Moderate | High | Not App. | Not App. | Not App. | Not App. |
V | Fallopia baldschuanica (Polygonum aubertii)X | fleeceflower | Low | Low | Low | Low | Moderate | Moderate |
PX | Fallopia japonica (potentially invasive weed)X | Japanese knotweed | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Fallugia paradoxaX | Apache plume | Low | Moderate | Very Low | Very Low | Low | Low |
PX | Farfugium japonicum cvs. (Ligularia tussilaginea cvs.)X | leopard plant | High | High | High | High | Unknown | Unknown |
BaXSX | Fargesia dracocephala X | dragon's head bamboo | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
BaXSX | Fargesia fungosa (Borinda fungosa)X | chocolate bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BaXSX | Fargesia murielaeX | umbrella bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BaXSX | Fargesia nitida (Sinarundinaria nitida, Bamboo)X | blue fountain bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BaXSX | Fargesia robusta, cvs.X | green screen bamboo | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
BaXSX | Fargesia spathacea (Thamnocalamus spathaceus)X | umbrella bamboo | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Fascicularia pitcairniifoliaX | fascicularia | Low | Unknown | Low | Unknown | Unknown | Unknown |
SX | Fatsia japonica (shade)X | Japanese aralia | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
TX | Feijoa sellowiana (See Acca sellowiana)X | | | | | | | |
SX | Felicia aethiopicaX | tight and tidy | Unknown | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Felicia amelloidesX | blue marguerite | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Felicia fruticosaX | shrub aster | Low | Low | Low | Moderate | Not App. | Not App. |
SXSuX | Ferocactus spp. (CA native, non-native spp.)X | barrel cactus | Very Low | Very Low | Very Low | Low | Low | Low |
BuX | Ferraria crispaX | starfish iris | Very Low | Unknown | Low | Very Low | Unknown | Unknown |
BuX | Ferraria schaeferi 'Dark Chocolate'X | Dark Chocolate ferraria | Unknown | Unknown | Low | Very Low | Unknown | Unknown |
GX | Festuca 'Siskiyou Blue'X | Siskiyou Blue fescue | Moderate | Moderate | Low | Low | Moderate | Moderate |
GX | Festuca amethystinaX | sheep's fescue | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
GX | Festuca californica, cvs.X | California fescue | Low | Moderate | Low | Not App. | Moderate | Moderate |
GX | Festuca capillataX | fine-leafed fescue | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Festuca cinereaX | fescue (cinerea) | Low | Unknown | Low | Unknown | Unknown | Unknown |
GX | Festuca eskiaX | dwarf fescue | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Festuca glaucaX | blue fescue | Low | Low | Low | Moderate | Moderate | Moderate |
GX | Festuca idahoensis, cvs.X | Idaho fescue | Very Low | Low | Low | Moderate | Unknown | Unknown |
GX | Festuca maireiX | Maire's fescue | Low | Low | Low | Moderate | Unknown | Unknown |
GX | Festuca muelleriX | Mueller's fescue | Unknown | Unknown | Low | Moderate | Unknown | Unknown |
GX | Festuca ovina, cvs.X | sheep fescue | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
GX | Festuca rubraX | creeping red fescue | Low | Moderate | High | High | Not App. | Not App. |
GX | Festuca tenuifoliaX | fescue (tenuifolia) | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Ficus auriculataX | Roxburgh fig | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Ficus benghalensisX | Indian banyan | Not App. | Not App. | Moderate | Unknown | Unknown | Unknown |
SXTX | Ficus benjaminaX | weeping Chinese banyan | Not App. | Not App. | Moderate | Not App. | Not App. | Moderate |
TX | Ficus brandegeei (palmeri)X | desert fig | Not App. | Unknown | Moderate | Not App. | Unknown | Unknown |
TX | Ficus caricaX | edible fig | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SXTX | Ficus elasticaX | rubber plant | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Ficus floridaX | Florida fig | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Ficus lyrataX | fiddleleaf fig | Not App. | Not App. | Moderate | Not App. | Not App. | Not App. |
TX | Ficus macrophyllaX | Moreton Bay fig | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Ficus microcarpa (F. retusa nitida)X | Indian laurel fig/ laurel fig | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
TX | Ficus microphylla (See Ficus rubiginosa)X | | | | | | | |
V | Ficus pumila (repens)X | creeping fig | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Ficus religiosaX | bo tree | Not App. | Not App. | Moderate | Moderate | Unknown | Unknown |
TX | Ficus retusa nitida (See Ficus microcarpa)X | | | | | | | |
TX | Ficus rubiginosa (F. microphylla)X | rusty leaf fig | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
PX | Filipendula hexapetala (See F. vulgaris)X | | | | | | | |
PX | Filipendula purpureaX | pink meadowsweet | High | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Filipendula ulmariaX | queen of the meadow | High | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Filipendula vulgaris (F. hexapetala)X | dropwort | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Foeniculum vulgare 'Purpureum'X | bronze fennel | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Forestiera pubescensX | desert olive | Low | Low | Low | Low | Low | Low |
SX | Forsythia koreana 'Kumsom'X | silver vein forsythia | Moderate | Unknown | Moderate | Unknown | Not App. | Not App. |
SX | Forsythia spp., hybridsX | forsythia | Moderate | Moderate | Moderate | Unknown | Not App. | Not App. |
SX | Forsythia viridissima 'Bronxensis'X | Bronx green forsythia | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
SX | Forsythia x intermedia hybridsX | forsythia | Low | Low | Moderate | Moderate | Not App. | Not App. |
SX | Fothergilla gardeniiX | dwarf fothergilla | Moderate | Moderate | Unknown | Not App. | Unknown | Unknown |
SX | Fothergilla major X | mountain witchalder | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
SXSuX | Fouquieria columnarisX | boojum | Not App. | Not App. | Very Low | Very Low | Not App. | Very Low |
SXSuX | Fouquieria diguetiiX | palo adan | Not App. | Not App. | Very Low | Unknown | Not App. | Unknown |
SXSuX | Fouquieria macdougaliiX | Mexican tree ocotillo | Not App. | Not App. | Very Low | Very Low | Low | Low |
SXSuX | Fouquieria splendensX | ocotillo | Not App. | Not App. | Very Low | Very Low | Very Low | Very Low |
GcX | Fragaria spp. (CA native, non-natives spp.)X | strawberry | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Francoa ramosaX | bridal wreath | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Francoa sonchifoliaX | bridal wreath | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
SX | Frangula californica, cvs. (Rhamnus californica)X | coffeeberry | Low | Low | Very Low | Low | Not App. | Unknown |
SX | Frangula californica ssp. tomentella (Rhamnus tomentella)X | chaparral coffeeberry | Very Low | Very Low | Very Low | Low | Not App. | Unknown |
SX | Frankenia palmeriX | Palmer's Frankenia | Unknown | Very Low | Very Low | Very Low | Unknown | Unknown |
SX | Frankenia salinaX | alkali heath | Unknown | Very Low | Very Low | Very Low | Unknown | Unknown |
SX | Frankenia thymifoliaX | sea heath | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SXTX | Franklinia alatamaha (Gordonia alatamaha) X | Franklin tree | Moderate | Not App. | Moderate | Not App. | Not App. | Not App. |
TX | Fraxinus 'Moraine'X | Moraine ash | Moderate | Moderate | Not App. | Not App. | Moderate | Moderate |
TX | Fraxinus americanaX | white ash | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Fraxinus angustifolia 'Raywood' (F. oxycarpa)X | Raywood ash | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Fraxinus dipetalaX | foothill ash | Low | Unknown | Low | Low | Unknown | Unknown |
TX | Fraxinus excelsiorX | European ash | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Fraxinus greggiiX | little leaf ash | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Fraxinus griffithiiX | Griffith ash | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Fraxinus latifoliaX | Oregon ash | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
TX | Fraxinus ornusX | flowering ash | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
TX | Fraxinus pennsylvanica cvs.X | green ash | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Fraxinus uhdeiX | evergreen ash | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Fraxinus velutinaX | Arizona ash | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Fraxinus velutina 'Modesto'X | Modesto ash | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
BuX | Freesia spp.X | freesia | Very Low | Moderate | Low | Very Low | Low | Moderate |
SX | Fremontodendron spp., cvs.X | flannel bush | Very Low | Very Low | Very Low | Very Low | Not App. | Not App. |
BuX | Fritillaria affinisX | checker lily | Very Low | Unknown | Not App. | Unknown | Unknown | Unknown |
PX | Fuchsia hybridsX | fuchsia | Moderate | Moderate | High | High | Not App. | Not App. |
SX | Fuchsia magellanicaX | hardy fuchsia | Moderate | Moderate | Moderate | High | Not App. | Not App. |
SX | Fuchsia thymifoliaX | fuchsia | Moderate | Moderate | Moderate | High | Not App. | Not App. |
SX | Furcraea spp.X | furcraea | Low | Not App. | Low | Low | Not App. | Low |
PX | Gaillardia aristataX | great blanket flower | Low | Unknown | Low | Moderate | Unknown | Unknown |
PX | Gaillardia spp., hybrids, cvs.X | gaillardia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Gaillardia x grandiflora, cvs.X | blanket flower | Low | Low | Low | Moderate | Moderate | Moderate |
PX | Galium odoratumX | sweet woodruff | Moderate | Moderate | High | Not App. | Unknown | Unknown |
PX | Galium oreganumX | Britton Oregon bedstraw | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
BuX | Galtonia candicans X | summer hyacinth | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Galvezia juncea, cvs.X | Baja bush-snapdragon | Not App. | Not App. | Very Low | Low | Unknown | Unknown |
SX | Galvezia speciosa, cvs. (See Gambelia speciosa)X | | | | | | | |
SX | Gambelia speciosa, cvs. (Galvesia speciosa, cvs.)X | island bush snapdragon | Low | Low | Very Low | Low | Unknown | Unknown |
SX | Gamolepis chrysanthemoides (See Euryops chrysanthemoides)X | | | | | | | |
SX | Gardenia spp., cvs.X | gardenia | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Garrya elliptica, cvs.X | coast silktassel | Low | Low | Low | Moderate | Not App. | Not App. |
SX | Garrya flavescensX | ashy silktassel | Low | Unknown | Very Low | Low | Not App. | Not App. |
SX | Garrya fremontii X | Fremont silk tassel | Low | Low | Very Low | Not App. | Not App. | Not App. |
SX | Garrya veatchiiX | silk tassel bush | Unknown | Unknown | Very Low | Very Low | Unknown | Unknown |
PXSuX | Gasteraloe hybridsX | gasteraloe | Low | Unknown | Low | Low | Unknown | Unknown |
PXSuX | Gasteria spp. (shade)X | gasteria | Low | Low | Low | Low | Unknown | Unknown |
SX | Gaultheria mucronata (Pernettya mucronata)X | prickly heath | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcX | Gaultheria procumbensX | creeping wintergreen | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
SX | Gaultheria shallonX | salal | Moderate | Moderate | Moderate | High | Not App. | Not App. |
PX | Gaura lindheimeri, cvs.X | gaura | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
GcX | Gazania spp.X | gazania | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
TX | Geijera parvifloraX | Australian willow | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
V | Gelsemium rankiniiX | swamp jessamine | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Gelsemium sempervirensX | Carolina jessamine | Low | Low | Moderate | Moderate | Moderate | Moderate |
GcXSX | Genista lydiaX | Lydia woadwaxen | Moderate | Low | Moderate | Moderate | Not App. | Not App. |
GcXSX | Genista pilosa 'Vancouver Gold' X | Vancouver Gold genista | Moderate | Moderate | Not App. | Moderate | Unknown | Unknown |
SX | Genista spp.X | broom (Genista) | Low | Low | Moderate | Moderate | Not App. | Not App. |
PX | Gentiana scabra procumbensX | gentian | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
PX | Gentiana septemfidaX | crested gentian | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
TX | Geoffroea decorticansX | Chilean palo verde | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GcXPX | Geranium incanumX | carpet geranium | Low | Moderate | Low | Moderate | Unknown | Moderate |
GcXPX | Geranium spp.X | cranesbill | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Gerbera jamesonii, hybridsX | Transvaal daisy | Moderate | High | Moderate | Moderate | Not App. | Not App. |
PX | Geum spp.X | avens | Moderate | Moderate | Moderate | Moderate | Unknown | Not App. |
TX | Ginkgo bilobaX | maiden hair tree | Moderate | Moderate | Moderate | Moderate | Moderate | Unknown |
BuX | Gladiolus hybrids, selectionsX | gladiolus | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
BuX | Gladiolus watsonius (Homoglossum)X | gladiolus | Low | Low | Low | Low | Not App. | Not App. |
PX | Glandularia aristigera, cvs. (Verbena tenuisecta) X | South American rock vervain | Low | Moderate | Low | Low | Moderate | Moderate |
PX | Glandularia gooddingii (See Verbena gooddingii)X | | | | | | | |
PX | Glandularia lilacina, cvs. (Verbena lilacina)X | lilac verbena | Low | Low | Low | Low | Unknown | Unknown |
PX | Glaucium flavumX | horned poppy | Low | Low | Very Low | Low | Unknown | Unknown |
GcXPX | Glechoma hederaceaX | ground ivy | Low | Moderate | Moderate | High | Not App. | Not App. |
TX | Gleditsia triacanthosX | honey locust | Low | Low | Moderate | Low | Low | Low |
PX | Globularia cordifoliaX | creeping globe daisy | Low | Unknown | Unknown | Unknown | Not App. | Not App. |
PX | Globularia x indubiaX | globe daisy | Moderate | Unknown | Low | Low | Not App. | Not App. |
BuX | Gloriosa rothschildianaX | gloriosa lily | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
GX | Glyceria grandisX | American mannagrass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Glyceria maxima 'Variegata'X | variegated water grass | Unknown | Unknown | High | Unknown | Unknown | Unknown |
GX | Glyceria striataX | fowl mannagrass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Gomphostigma virgatumX | otter bush | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Goniolimon speciosum (Limonium speciosum)X | statice | Low | Low | Low | Moderate | Not App. | Moderate |
PX | Goniolimon tataricum (Limonium tataricum)X | Tartarian statice | Low | Unknown | Moderate | Low | Unknown | Unknown |
PX | Goodenia affinis 'Little Luna'X | silver goodenia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Gordonia axillarisX | gordonia | High | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Gordonia lasianthusX | loblolly bay | Moderate | Unknown | High | Unknown | Unknown | Unknown |
SX | Gossypium harknessiiX | otterbossie | Unknown | Unknown | Unknown | Unknown | Unknown | Low |
SX | Gossypium thurberiX | Thurber's cotton/desert cotton | Unknown | Low | Unknown | Unknown | Unknown | Low |
PXSuX | Graptopetalum spp.X | graptopetalum | Very Low | Low | Low | Low | Not App. | Unknown |
PXSuX | Graptoveria hybrids X | graptoveria | Low | Low | Low | Low | Unknown | Unknown |
TX | Grevillea robustaX | silk oak | Low | Low | Low | Low | Not App. | Moderate |
SX | Grevillea spp., cvs.X | grevillea | Low | Low | Low | Low | Not App. | Moderate |
SX | Grewia occidentalisX | lavender star flower | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Greyia sutherlandiiX | Natal bottlebrush | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
PX | Grindelia camporumX | Great Valley gum plant | Unknown | Low | Very Low | Low | Unknown | Unknown |
PX | Grindelia hirsutula X | hairy gum plant | Low | Low | Very Low | Low | Unknown | Unknown |
PX | Grindelia strictaX | coastal gum plant | Low | Moderate | Very Low | Low | Unknown | Unknown |
GcX | Grindelia stricta var. platyphyllaX | spreading gum plant | Low | Moderate | Low | Low | Unknown | Unknown |
SX | Griselinia littoralisX | kapuka | Moderate | Not App. | Moderate | Not App. | Not App. | Not App. |
SX | Griselinia lucidaX | puka | Moderate | Not App. | Moderate | Not App. | Not App. | Not App. |
SX | Guaiacum angustifoliumX | Texas guaiacum | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Guaiacum coulteriX | Guayacan | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Gunnera chilensisX | dinosaur food | High | High | High | High | Not App. | Not App. |
PX | Gunnera killipianaX | Mexican gunnera | High | High | Unknown | High | Not App. | Not App. |
PX | Gunnera magellanicaX | pangue enano | High | Unknown | High | High | Not App. | Not App. |
PX | Gunnera manicataX | giant gunnera | High | High | High | High | Not App. | Not App. |
PX | Gunnera tinctoriaX | Chilean rhubarb | High | Unknown | High | High | Not App. | Not App. |
SX | Gutierrezia sarothraeX | matchweed | Unknown | Unknown | Very Low | Low | Very Low | Low |
TX | Gymnocladus dioicaX | Kentucky coffee tree | Low | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Gypsophila cerastioidesX | baby's breath | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
PX | Gypsophila paniculataX | baby's breath | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Gypsophila repensX | creeping baby's breath | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
BuX | Habranthus andersonii (See H. tubispathus)X | | | | | | | |
BuX | Habranthus robustus (Zephyranthes robusta)X | pampas lily | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
BuX | Habranthus texanus (See H. tubispathus)X | | | | | | | |
BuX | Habranthus tubispathusX | habranthus | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
BuX | Haemanthus albiflosX | dappled snowbush | Low | Unknown | Low | Low | Unknown | Unknown |
BuX | Haemanthus katherinae (See Scadoxus multiflorus katharinae)X | | | | | | | |
SX | Hakea laurinaX | sea urchin tree | Low | Low | Low | Low | Not App. | Not App. |
SX | Hakea suaveolensX | sweet hakea | Low | Low | Low | Low | Not App. | Not App. |
GX | Hakonechloa macra, cvs.X | Hakone grass | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Halesia carolinaX | snow drop tree | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Halesia monticolaX | silverbell | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Halimium atriplicifoliumX | yellow rock rose | Low | Unknown | Low | Not App. | Unknown | Unknown |
SX | Halimium commutatumX | coast rock rose | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Halimium lasianthumX | yellow rock rose | Low | Low | Low | Unknown | Unknown | Unknown |
SX | Halimium ocymoidesX | yellow rock rose | Low | Unknown | Low | Unknown | Unknown | Unknown |
PX | Haloragis erecta 'Wellington Bronze'X | bronze leaf toatoa | Moderate | High | Moderate | Unknown | Unknown | Unknown |
SX | Hamamelis virginianaX | common witch hazel | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
SX | Hamamelis intermediaX | hybrid witch hazel | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Hamelia patensX | Texas firecracker bush | Not App. | Unknown | Low | Low | Moderate | Moderate |
TX | Handroanthus chrysotrichus (Tabebuia chrysotricha)X | golden trumpet tree | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
TX | Handroanthus impetiginosus (Tabebuia impetiginosa)X | pink/lavender trumpet tree | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
SXV | Hardenbergia comptonianaX | western Australia coral pea | Moderate | Moderate | Low | Moderate | Not App. | Moderate |
SXV | Hardenbergia violaceaX | lilac vine | Moderate | Moderate | Low | Moderate | Not App. | Moderate |
TX | Harpephyllum caffrumX | Kaffir plum | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Harpullia arboreaX | tulipwood | Not App. | Not App. | Moderate | Not App. | Not App. | Not App. |
TX | Havardia mexicana (Pithecellobium mexicana)X | Mexican ebony | Unknown | Unknown | Low | Low | Not App. | Low |
TX | Havardia pallens (Pithecellobium pallens)X | tenaza | Unknown | Unknown | Unknown | Low | Low | Low |
PXSuX | Haworthia spp.X | haworthia | Low | Low | Low | Low | Not App. | Low |
SX | Hazardia detonsaX | island bristleweed | Unknown | Low | Very Low | Low | Unknown | Unknown |
SX | Hebe spp.X | hebe | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PXSuX | Hechtia spp., cvs.X | hechtia | Low | Unknown | Low | Low | Unknown | Unknown |
GcXV | Hedera canariensisX | Algerian ivy | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
GcXV | Hedera helixX | English ivy | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
GcXV | Hedera nepalensisX | Himalayan ivy | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Hedychium coccinium (partial shade in South Inland)X | red ginger lily | Moderate | Not App. | High | High | Not App. | Not App. |
PX | Hedychium coronariumX | white ginger lily | Moderate | High | High | High | Not App. | Not App. |
PX | Hedychium cvs.X | ginger lily | Moderate | Not App. | High | Moderate | Not App. | Not App. |
PX | Hedychium flavescensX | yellow ginger | Moderate | Not App. | High | High | Not App. | Not App. |
PX | Hedychium flavumX | yellow butterfly ginger | Moderate | Not App. | High | Moderate | Not App. | Not App. |
PX | Hedychium gardnerianumX | Kahili ginger | Moderate | Not App. | High | High | Not App. | Not App. |
PX | Hedychium greeniiX | red ginger | Moderate | Not App. | High | High | Not App. | Not App. |
PmXTX | Hedyscepe canterburyanaX | umbrella palm | Unknown | Unknown | High | Unknown | Unknown | Unknown |
PX | Helenium autumnaleX | common sneeze weed | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Helenium bigeloviiX | Bigelow sneezeweed | Moderate | High | High | High | Unknown | Unknown |
PX | Helenium hoopesii (See Hymenoxys hoopesii)X | | | | | | | |
PX | Helenium hybrids, cvs.X | sneeze weed | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Helenium puberulumX | rosilla | Unknown | Unknown | High | Moderate | Unknown | Unknown |
PX | Helianthemum nummularium, cvs.X | common sunrose | Low | Moderate | Low | Low | Unknown | Unknown |
PX | Helianthemum scoparium var. aldersonii (See Crocanthemum aldersonii)X | sunrose | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Helianthus angustifoliusX | swamp sunflower | Moderate | High | Unknown | Unknown | Unknown | Unknown |
PX | Helianthus debilisX | curry plant | Unknown | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Helianthus maximilianiX | Maximilian sunflower | Moderate | Low | Low | Unknown | Moderate | Unknown |
PX | Helianthus multiflorusX | sunflower | Very Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Helichrysum amorginum X | ruby cluster straw flower | Unknown | Unknown | Low | Low | Not App. | Not App. |
PX | Helichrysum bracteatumX | straw flower | Low | Low | Moderate | Moderate | Not App. | Not App. |
PX | Helichrysum italicumX | chamomile sunray | Unknown | Low | Low | Unknown | Not App. | Not App. |
PX | Helichrysum petiolareX | licorice plant | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Helichrysum rosmarinifolium (See Ozothamnus rosmarinifolius)X | | | | | | | |
SX | Helichrysum thianschanicumX | licorice plant | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
GX | Helictotrichon sempervirens, cvs.X | blue oat grass | Low | Low | Moderate | Moderate | Unknown | Unknown |
PX | Heliopsis cvs.X | false sunflowers | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Heliopsis helianthoides scabraX | golden sunflower | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Heliotropium amplexicaule (H. anchusaefolium)X | clasping heliotrope | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Heliotropium arborescensX | common heliotrope | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Helipterum (See Rhodanthe)X | | | | | | | |
PX | Helleborus argutifolius X | Corsican hellebore | Low | Low | Low | Low | Unknown | Unknown |
PX | Helleborus foetidusX | stinking hellebore | Low | Moderate | Moderate | Low | Not App. | Not App. |
PX | Helleborus lividus X | Majorcan hellebore | Low | Unknown | Low | Low | Not App. | Not App. |
PX | Helleborus orientalis, hybridsX | Christmas/Lenten rose | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Helwingia chinensisX | helwingia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Hemerocallis spp.X | day lily | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Hemionitis arifoliaX | heart leaf fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Hemizygia 'Candy Kisses'X | Candy Kisses hemizygia | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
TX | Heptacodium miconioidesX | Seven Sons tree | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Hermannia verticillataX | honeybells | Moderate | Unknown | Low | Low | Unknown | Unknown |
GcX | Herniaria glabraX | green carpet | High | Moderate | Moderate | Moderate | Not App. | Not App. |
SXSuX | Hesperaloe campanulataX | bell flower hesperaloe | Unknown | Unknown | Very Low | Low | Low | Low |
SXSuX | Hesperaloe chiangiiX | hesperaloe (chiangii) | Unknown | Unknown | Very Low | Very Low | Unknown | Unknown |
SXSuX | Hesperaloe funiferaX | Coahuilan hesperaloe | Low | Low | Very Low | Low | Low | Low |
SXSuX | Hesperaloe nocturnaX | seven-son flower | Unknown | Unknown | Very Low | Low | Low | Unknown |
SXSuX | Hesperaloe parvifloraX | red/yellow yucca | Low | Low | Very Low | Low | Low | Low |
SXSuX | Hesperaloe tenuifoliaX | tropical hesperaloe | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
BuX | Hesperantha coccinea (Schizostylis) (shade)X | river lily | Moderate | Moderate | Moderate | Moderate | Not App. | Unknown |
TX | Hesperocyparis arizonica (Cupressus arizonica) nomen. unresolvedX | Arizona cypress | Very Low | Very Low | Very Low | Very Low | Low | Not App. |
TX | Hesperocyparis bakeri (Cupressus bakeri)X | Modoc cypress | Low | Low | Not App. | Unknown | Unknown | Unknown |
TX | Hesperocyparis forbesii (Cupressus forbesii)X | Tecate cypress | Low | Low | Very Low | Very Low | Not App. | Not App. |
TX | Hesperocyparis goveniana (Cupressus goveniana)X | Gowen cypress | Low | Low | Low | Not App. | Unknown | Unknown |
TX | Hesperocyparis guadalupensis (Cupressus guadalupensis)X | Guadalupe Island cypress | Low | Low | Very Low | Very Low | Not App. | Not App. |
TX | Hesperocyparis macnabiana (Cupressus macnabiana)X | MacNab cypress | Very Low | Low | Low | Not App. | Unknown | Unknown |
TX | Hesperocyparis macrocarpa (Cupressus macrocarpa)X | Monterey cypress | Moderate | Moderate | Low | Not App. | Not App. | Not App. |
TX | Hesperocyparis montana (Cupressus montana)X | San Pedro Martir cypress | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
TX | Hesperocyparis nevadensis (Cupressus nevadensis)X | Piute cypress | Low | Unknown | Low | Low | Unknown | Unknown |
TX | Hesperocyparis sargentii (Cupressus sargentii)X | Sargent cypress | Low | Low | Low | Low | Unknown | Unknown |
TX | Hesperocyparis stephensonii (Cupressus arizonica ssp. arizonica, C. arizonica var. glabra)X | Cuyamaca cypress | Very Low | Very Low | Very Low | Low | Low | Low |
SXSuX | Hesperoyucca spp. (Yucca whipplei, Yucca californica)X | yucca | Low | Low | Very Low | Low | Low | Low |
SX | Heterocentron elegansX | Spanish shawl | Not App. | Not App. | Moderate | Unknown | Unknown | Unknown |
SX | Heteromeles arbutifoliaX | toyon | Low | Very Low | Very Low | Low | Low | Not App. |
PX | Heterotheca sessiliflora X | sessile flower false golden aster | Unknown | Moderate | Low | Low | Unknown | Unknown |
PX | Heterotheca villosa (Chrysopsis villosa) X | hairy golden aster | Low | Moderate | Low | Low | Unknown | Unknown |
PX | Heuchera elegansX | urn-flowered alum root | Moderate | Unknown | Moderate | Low | Unknown | Unknown |
PX | Heuchera hirsutissimaX | Idyllwild rock flower | Moderate | Moderate | Moderate | Low | Unknown | Unknown |
PX | Heuchera hybrids, cvs. (CA natives, non-natives)X | coral bells cultivars | Moderate | Moderate | Moderate | High | Unknown | Unknown |
PX | Heuchera maximaX | island alum root | Moderate | Low | Low | Moderate | Unknown | Unknown |
PX | Heuchera micranthaX | crevice alum root | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Heuchera sanguineaX | coral bells | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Hibanobambusa tranquillansX | inyouchikuzoku | High | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Hibbertia asperaX | hibbertia (aspera) | Moderate | Not App. | Moderate | Unknown | Unknown | Unknown |
SX | Hibbertia cuneiformisX | cut leaf Guinea flower | Moderate | Moderate | Moderate | Unknown | Not App. | Unknown |
GcXSX | Hibbertia pedunculataX | hibbertia (pedunculata) | Moderate | Not App. | Moderate | Unknown | Unknown | Unknown |
V | Hibbertia scandensX | Guinea gold vine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Hibbertia vestitaX | hibbertia (vestita) | Moderate | Not App. | Moderate | Unknown | Unknown | Unknown |
PX | Hibiscus lasiocarpusX | California hibiscus | High | Moderate | High | High | Unknown | Unknown |
PX | Hibiscus moscheutos, cvs.X | mallow rose | Moderate | Moderate | Moderate | High | Moderate | Unknown |
SX | Hibiscus mutabilisX | confederate rose | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Hibiscus rosa-sinensisX | Chinese hibiscus | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Hibiscus splendensX | pink hollyhock tree | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Hibiscus syriacusX | rose of Sharon | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
GX | Hierochloe occidentalis (See Anthoxanthum occidentale)X | | | | | | | |
GX | Hierochloe odorata (See Anthoxanthum nitens ssp. nitens)X | | | | | | | |
GX | Hilaria rigida (Pleuraphis rigida)X | big galleta grass | Unknown | Unknown | Very Low | Low | Moderate | Unknown |
BaXSXTX | Himalayacalamus falconeri 'Damarapa'X | candy cane bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BaXSX | Himalayacalamus hookerianus cvs.X | blue bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
BuX | Hippeastrum spp.X | amaryllis | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Hippolytia herderi (Tanacetum herderi)X | hippolytia | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Hoita macrostachya (Psoralea macrostachya)X | leather root | Unknown | Unknown | Moderate | Low | Unknown | Unknown |
V | Holboellia coriacea 'Cathedral Gem'X | Cathedral Gem sausage vine | Unknown | Not App. | Unknown | Unknown | Unknown | Unknown |
SX | Holmskioldia sanguineaX | Chinese hat plant | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Holodiscus discolorX | sea foam | Low | Moderate | Low | Moderate | Not App. | Not App. |
SX | Holodiscus discolor var. microphyllus (Holodiscus microphyllus)X | rock spirea | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Holodiscus microphyllus (See Holodiscus discolor var. microphyllus)X | | | | | | | |
SX | Homalanthus populneusX | Queensland poplar | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Homalocladium platycladumX | ribbon bush | Moderate | Moderate | Moderate | Low | Unknown | Unknown |
BuX | Homeria spp.X | cape tulip | Very Low | Low | Low | Moderate | Unknown | Unknown |
BuX | Homoglad hybridsX | hybrid homoglad | Very Low | Low | Low | Very Low | Unknown | Unknown |
BuX | Homoglossum watsonium (See Gladiolus spp.)X | | | | | | | |
GX | Hordeum brachyantherumX | Meadow barley | Unknown | Very Low | Low | Unknown | Unknown | Unknown |
PX | Horkelia californicaX | horkelia | Unknown | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Horkelia cuneataX | wedge leaf horkelia | Unknown | Low | Low | Unknown | Unknown | Unknown |
PX | Horkelia parryiX | Parry's horkelia | Unknown | Moderate | Moderate | Low | Unknown | Unknown |
PX | Hosackia crassifolia var. otayensis (Lotus crassifolius var. otayensis)X | Otay Mountain lotus | Low | Moderate | Very Low | Low | Unknown | Unknown |
PX | Hosta spp. (shade)X | plantain lily | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
PX | Houttuynia cordata 'Chameleon'X | chameleon houttuynia | Moderate | High | Moderate | High | Unknown | Unknown |
TX | Hovenia dulcisX | Japanese raisin tree | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PmXTX | Howea forsterianaX | Kentia palm | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
V | Hoya carnosaX | wax plant | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Humata tyermanniiX | white rabbit's foot fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Humulus lupulusX | hops | Low | Moderate | Not App. | High | Unknown | Unknown |
PX | Hunnemannia fumariifoliaX | Mexican tulip poppy | Low | Low | Low | Moderate | Unknown | Unknown |
BuX | Hyacinthus spp.X | hyacinth | Moderate | Moderate | Not App. | Unknown | Moderate | Moderate |
SX | Hydrangea angustipetala X | willow leaf hydrangea | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
SXV | Hydrangea anomala petiolarisX | climbing hydrangea | Moderate | High | Not App. | High | Not App. | Not App. |
SX | Hydrangea arborescensX | snowball hydrangea | Moderate | High | Unknown | Unknown | Not App. | Not App. |
SX | Hydrangea aspera villosaX | lacecap hydrangea | Moderate | High | Unknown | Unknown | Not App. | Not App. |
V | Hydrangea integrifoliaX | evergreen climbing hydrangea | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Hydrangea macrophylla, cvs.X | hydrangea | Moderate | High | Moderate | High | Not App. | Not App. |
SX | Hydrangea paniculata hybridsX | peegee hydrangea | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Hydrangea quercifoliaX | oakleaf hydrangea | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Hydrangea serrataX | blue bird hydrangea | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
V | Hylocereus undatusX | dragon fruit | Not App. | Not App. | Moderate | Moderate | Unknown | Unknown |
PXSuX | Hylotelephium spp., cvs. (some Sedum)X | stone crop | Low | Low | Low | Low | Unknown | Unknown |
SX | Hymenoclea monogyra (See Ambrosia monogyra)X | | | | | | | |
SX | Hymenolepis parviflora (Athanasia acerosa)X | golden coulter bush | Low | Unknown | Unknown | Low | Unknown | Unknown |
TX | Hymenosporum flavumX | sweet shade | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Hymenoxys acaulis (See Tetraneuris acaulis)X | | | | | | | |
PX | Hymenoxys hoopesii (Helenium hoopesii)X | orange sneezeweed | Moderate | Unknown | Unknown | High | Unknown | Unknown |
SX | Hypericum 'Hidcote' X | St. John's wort | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Hypericum 'Rowallane'X | Rowall hypericum | Moderate | Moderate | Unknown | Unknown | Not App. | Not App. |
SX | Hypericum aegypticumX | dwarf St. John's wort | Moderate | Unknown | Low | Unknown | Not App. | Not App. |
SX | Hypericum androsaemum X | sweet amber | Moderate | Low | Unknown | Moderate | Not App. | Not App. |
SX | Hypericum beaniiX | Henry St. John's wort | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
GcXSX | Hypericum calycinumX | Aaron's beard | Moderate | Moderate | Moderate | Moderate | Unknown | Not App. |
GcXSX | Hypericum empetrifolium nanumX | hypericum | Moderate | Unknown | Unknown | Unknown | Unknown | Not App. |
PXSX | Hypericum frondosumX | hypericum (frondosum) | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Hypericum kalmianumX | Kalm's St. John's wort | Unknown | Unknown | Unknown | Unknown | Not App. | Not App. |
GcXPX | Hypericum kelleriX | Keller hypericum | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Hypericum olympicumX | olympic hypericum | Low | Unknown | Unknown | Unknown | Not App. | Not App. |
GcX | Hypericum reptansX | creeping St. John's wort | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Hypericum X inodorum 'Albury Purple'X | Albury purple hypericum | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
SX | Hypericum X moserianumX | gold flower | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Hypocalymma angustifolia 'Powder Puff'X | Powder Puff white myrtle | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
GcX | Hypocalymma cordifolium 'Golden Veil'X | variegated dwarf myrtle | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Hypocalymma robustumX | Swan River myrtle | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Hyptis emoryi (See Condea emoryi)X | | | | | | | |
PX | Iberis gibraltaricaX | Gibraltar candytuft | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Iberis sempervirensX | evergreen candy tuft | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Ilex aquifoliumX | English holly | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Ilex cornuta 'Burfordii'X | Burford holly | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Ilex crenataX | box-leaved holly | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Ilex decidua 'Warren's Red'X | Warren's red possumhaw | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Ilex dimorphophyllaX | Okinawan holly | Moderate | Moderate | Moderate | Moderate | Not App. | Unknown |
SX | Ilex glabraX | inkberry | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Ilex integraX | mochi tree | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Ilex latifolia 'Purple Power'X | purple power holly | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Ilex vomitoriaX | yaupon | Low | Moderate | Moderate | Low | Moderate | Moderate |
SX | Ilex x 'Nellie R. Stevens'X | Nellie R. Stevens holly | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Ilex x altaclarensis 'Wilsonii'X | Wilson holly | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Ilex x meserveaeX | blue boy/girl etc. cvs. | Moderate | Moderate | Moderate | Moderate | Not App. | Unknown |
SX | Ilex x 'RutHol 1'X | Emerald Collonade holly | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Illicium floridanum X | anise tree | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
SX | Illicium floridanum 'Alba'X | white Florida anise tree | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Illicium mexicanumX | Mexican anise tree | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
SX | Illicium parviflorumX | yellow anise tree | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PXSX | Impatiens sodenii (I. oliveri, I. uguenensis)X | poor man's rhododendron | Moderate | Not App. | High | Not App. | Not App. | Not App. |
GX | Imperata cylindricaX | blood grass | High | High | Moderate | Moderate | Unknown | Not App. |
PX | Incarvillea arguta X | Himalayan gloxinia | Moderate | High | Moderate | Unknown | Unknown | Unknown |
PX | Incarvillea delavayi X | hardy gloxinia | Moderate | High | Moderate | Unknown | Unknown | Unknown |
SX | Indigofera australisX | Australian indigo | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Indigofera decora (incarnata)X | Chinese indigo | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Indigofera heteranthaX | Himalayan indigo | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Inula ensifoliaX | inula | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Iochroma cyaneaX | violet tubeflower | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Iochroma fuchsioidesX | red tubeflower | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
SX | Iochroma grandifloraX | large flower iochroma | Moderate | Not App. | Unknown | Unknown | Unknown | Unknown |
BuX | Ipheion uniflorumX | spring star flower | Low | Low | Low | Low | Unknown | Unknown |
V | Ipomea indica (acuminata)X | blue dawn flower | Low | Moderate | Low | Moderate | Not App. | Moderate |
V | Ipomoea albiveniaX | wild cotton | Unknown | Not App. | Unknown | Unknown | Unknown | Unknown |
V | Ipomoea fistulosa carneaX | bloodleaf | Unknown | Not App. | Unknown | Unknown | Unknown | Unknown |
PX | Ipomopsis rubra X | standing cypress | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Iris douglasianaX | Douglas iris | Low | Low | Low | Moderate | Unknown | Unknown |
PX | Iris ensata X | Japanese iris | High | High | High | High | Unknown | Unknown |
PX | Iris germanicaX | bearded iris | Low | Low | Low | Moderate | Moderate | Moderate |
PX | Iris Louisiana hybridsX | Louisiana iris | High | Unknown | High | Unknown | Unknown | High |
PX | Iris Pacific Coast hybridsX | Pacific Coast hybrids | Low | Moderate | Low | Moderate | Unknown | Unknown |
PX | Iris sibiricaX | Siberian iris | Moderate | Moderate | High | Not App. | Unknown | Unknown |
BuX | Iris x hollandicaX | Dutch iris | Moderate | Moderate | Unknown | Very Low | Moderate | Moderate |
BuX | Iris xiphiumX | Spanish iris | Moderate | Moderate | Unknown | Very Low | Moderate | Moderate |
PX | Ischyrolepis subverticillataX | dune restio | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Isocoma spp. (Haplopappus)X | goldenbush | Unknown | Unknown | Very Low | Very Low | Very Low | Very Low |
PX | Isolepis cernua (Scirpus cernuus) (water plant)X | low bull rush | High | High | High | High | Not App. | Not App. |
PX | Isolepis nodosaX | knobby club rush | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Isomeris arborea (See Peritoma arborea)X | | | | | | | |
SX | Isoplexis canariensisX | Canary Island foxglove | Low | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Isoplexis chalcanthaX | isoplexis | Low | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Isopogon formosusX | rose cone flower/drumsticks | Low | Unknown | Low | Not App. | Unknown | Unknown |
GcX | Isotoma axillarisX | rock isotoma | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
GcX | Isotoma fluviatilis (Laurentia fluviatilis)X | blue star creeper | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Itea ilicifoliaX | holly sweetspire | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Itea virginicaX | Virginia sweetspire | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Iva hayesianaX | poverty weed | Very Low | Very Low | Very Low | Low | Not App. | Not App. |
BuX | Ixia spp.X | African corn lily | Low | Low | Low | Very Low | Unknown | Unknown |
SX | Ixora coccineaX | jungle geranium | Unknown | Not App. | High | Unknown | Not App. | Moderate |
TX | Jacaranda mimosifoliaX | jacaranda | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SXV | Jasminum angulareX | South African jasmine | Unknown | Not App. | Moderate | Moderate | Unknown | Unknown |
SXV | Jasminum azoricum (sold as J.tortuosum)X | lemon-scented jasmine | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SXV | Jasminum beesianumX | jasmine (beesianum) | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Jasminum floridumX | showy jasmine | Low | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Jasminum grandiflorum (See J. officinale f. grandiflorum)X | | | | | | | |
SX | Jasminum humile X | Italian jasmine | Low | Moderate | Moderate | Moderate | Not App. | Moderate |
V | Jasminum leratiiX | jasmine (leratii) | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
SX | Jasminum mesnyiX | primrose jasmine | Low | Moderate | Low | Moderate | Moderate | Moderate |
SX | Jasminum nitidumX | angel wing jasmine | Low | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Jasminum nudiflorumX | winter jasmine | Low | Low | Unknown | Unknown | Unknown | Unknown |
SX | Jasminum officinale f. grandiflorum (J. grandiflorum)X | common jasmine | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Jasminum parkeriX | dwarf jasmine | Low | Low | Moderate | Moderate | Unknown | Unknown |
V | Jasminum polyanthumX | pink jasmine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SXV | Jasminum sambacX | Arabian jasmine | Moderate | Moderate | Moderate | Unknown | Unknown | Moderate |
SX | Jasminum tortuosumX | twisted jasmine | Unknown | Low | Moderate | Moderate | Unknown | Unknown |
V | Jasminum x stephanenseX | Stephan jasmine | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Jatropha cardiophyllaX | firecracker flower | Not App. | Unknown | Unknown | Unknown | Not App. | Moderate |
SX | Jatropha dioicaX | Sangre de Drago | Not App. | Unknown | Unknown | Unknown | Not App. | Moderate |
SX | Jatropha gossypiifoliaX | bellyache bush | Not App. | Unknown | Unknown | Unknown | Not App. | Moderate |
SX | Jatropha integerrimaX | spicy jatropha | Not App. | Unknown | Moderate | Moderate | Not App. | Moderate |
PmXTX | Jubaea chilensisX | Chilean wine palm | Low | Moderate | Low | Moderate | Not App. | Not App. |
TX | Juglans californicaX | California black walnut | Moderate | Not App. | Low | Low | Not App. | Not App. |
TX | Juglans hindsiiX | California black walnut | Moderate | Moderate | Not App. | Low | Not App. | Not App. |
TX | Juglans majorX | Arizona walnut | Unknown | Unknown | Unknown | Unknown | Unknown | Moderate |
TX | Juglans nigraX | eastern black walnut | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
TX | Juglans regiaX | English walnut | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Juncus acutusX | spiny rush | Unknown | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Juncus aquatic spp. (native, non-native spp.)X | rush | High | High | Moderate | Moderate | Unknown | Moderate |
PX | Juncus effusus, cvs.X | softrush | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Juncus mexicanusX | Mexican rush | Unknown | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Juncus pallidusX | pale rush | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Juncus patens, cvs.X | California grey rush | Low | Moderate | Low | Low | Unknown | Moderate |
PX | Juncus textilisX | basket rush | Moderate | Unknown | Moderate | High | Unknown | Unknown |
SX | Juniperus californicaX | California juniper | Low | Low | Very Low | Low | Low | Unknown |
TX | Juniperus scopulorum cvs.X | Rocky Mountain juniper | Low | Low | Moderate | Moderate | Moderate | Moderate |
GcXSXTX | Juniperus spp.X | juniper | Low | Low | Low | Moderate | Moderate | Moderate |
SX | Justicia aureaX | yellow plume flower | Unknown | Unknown | High | High | Unknown | Unknown |
SX | Justicia brandegeanaX | shrimp plant | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Justicia californica (Beloperone californica)X | chuparosa | Very Low | Not App. | Very Low | Low | Low | Very Low |
SX | Justicia candicans (ovata)X | red justicia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Justicia carneaX | Brazilian plume flower | Moderate | High | High | High | Not App. | Unknown |
SX | Justicia fulvicomaX | mountain laurel | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Justicia leonardiiX | justicia (leonardii) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Justicia purpusiiX | chuparosa del cabo | Unknown | Unknown | Very Low | Unknown | Unknown | Unknown |
SX | Justicia rizziniiX | firecracker flower | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Justicia sonoraeX | Sonoran justicia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Justicia spicigeraX | Mexican honeysuckle | Not App. | Low | Low | Low | Low | Low |
SuXV | Kalanchoe beauverdiiX | Beauverd's widow's-thrill | Unknown | Not App. | Low | Unknown | Unknown | Unknown |
SXSuX | Kalanchoe spp.X | kalanchoe | Low | Low | Low | Low | Not App. | Moderate |
PX | Kalimeris incisa 'Blue Star' (Boltonia)X | blue star Japanese aster | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Kalmia latifoliaX | mountain laurel | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
TX | Kalopanax pictusX | tree aralia | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Keckiella antirrhinoidesX | yellow penstemon | Low | Low | Low | Low | Not App. | Not App. |
SX | Keckiella brevifloraX | yawning penstemon | Low | Low | Very Low | Low | Unknown | Unknown |
SX | Keckiella cordifoliaX | climbing penstemon | Low | Low | Very Low | Low | Not App. | Not App. |
V | Kennedia beckxiana 'Flamboyant'X | Cape Arid kennedia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Kennedia carinataX | clover carpet vine | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Kennedia coccineaX | coral vine | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Kennedia nigricansX | black coral pea | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Kennedia rubicundaX | dusky coral pea | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Kerria japonicaX | Japanese rose | Moderate | Moderate | Unknown | Moderate | Moderate | Unknown |
PX | Kirengeshoma koreanaX | yellow waxbells | High | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Kirengeshoma palmataX | yellow waxbells | High | Unknown | Unknown | Not App. | Unknown | Unknown |
PXSuX | Kleinia amaniensis (Senecio amaniensis)X | orange puffs | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PXSuX | Kleinia anteuphorbium (Senecio anteuphorbium)X | swizzle sticks | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PXSuX | Kleinia repens (Senecio repens)X | blue chalksticks | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Knautia macedonicaX | pincushion plant | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Kneiffia fruticosa (Oenothera fruticosa)X | golden sundrops | Moderate | Moderate | Low | Not App. | Unknown | Unknown |
PX | Kniphofia galpinii X | coral poker | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Kniphofia spp., cvs. X | poker plant | Low | Low | Moderate | Moderate | Moderate | Moderate |
PX | Kniphofia triangularisX | red hot poker | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Kniphofia uvaria hybrids, cvs.X | red hot poker | Low | Low | Low | Low | Moderate | Moderate |
GX | Koeleria glaucaX | blue hair grass | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
GX | Koeleria macrantha (cristata)X | June grass | Low | Low | Low | Unknown | Unknown | Unknown |
TX | Koelreuteria bipinnataX | Chinese flame tree | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
TX | Koelreuteria elegansX | Chinese flame tree | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
TX | Koelreuteria paniculataX | golden rain tree | Moderate | Moderate | Low | Low | Moderate | Moderate |
SX | Kolkwitzia amabilisX | beauty bush | Low | Moderate | Moderate | Moderate | Moderate | Not App. |
SX | Krascheninnikovia lanataX | winterfat | Unknown | Unknown | Very Low | Low | Low | Unknown |
SX | Kunzea spp.X | kunzea | Low | Low | Moderate | Unknown | Unknown | Unknown |
V | Lablab purpureus (Dolichos lablab)X | hyacinth bean | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Laburnum x watereriX | golden chain tree | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
BuX | Lachenalia spp.X | cape cowslip | Low | Low | Low | Very Low | Unknown | Unknown |
TX | Lagerstroemia spp., hybrids, cvs.X | crape myrtle | Low | Low | Moderate | Moderate | Moderate | Moderate |
TX | Lagunaria patersoniiX | primrose tree | Low | Not App. | Low | Low | Not App. | Not App. |
SX | Lambertia inermisX | lambertia | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
GcXPX | Lamiastrum galeobdolonX | yellow archangel | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
GcX | Lamium maculatumX | spotted deadnettle | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcX | Lampranthus spp.X | ice plant (Lampranthus) | Low | Low | Very Low | Low | Not App. | Not App. |
GcX | Lantana 'New Gold'X | New Gold lantana | Unknown | Unknown | Very Low | Low | Moderate | Moderate |
GcXSX | Lantana camara, cvs.X | lantana | Low | Moderate | Low | Low | Moderate | Moderate |
GcX | Lantana hybridsX | hybrid lantana | Low | Low | Low | Low | Moderate | Moderate |
GcXSX | Lantana montevidensis (sellowiana)X | trailing lantana | Low | Low | Low | Low | Moderate | Moderate |
V | Lapageria rosea X | Chilean bellflower | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Larix deciduaX | European larch | Moderate | Not App. | Not App. | Not App. | Not App. | Not App. |
TX | Larix kaempferiX | Japanese larch | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
TX | Larix laricina 'Blue Sparkler'X | blue sparkler larch | Unknown | Unknown | Not App. | Not App. | Unknown | Unknown |
SX | Larix x eurolepis 'Varied Directions'X | dunkled larch | Unknown | Unknown | Unknown | Not App. | Unknown | Unknown |
SX | Larrea tridentataX | creosote | Very Low | Very Low | Very Low | Low | Very Low | Very Low |
GcX | Laurentia fluviatilis (See Isotoma fluviatilis)X | | | | | | | |
TX | Laurus 'Saratoga'X | Saratoga laurel | Low | Low | Low | Low | Moderate | Moderate |
TX | Laurus nobilisX | sweet bay | Low | Low | Low | Low | Moderate | Moderate |
SX | Lavandula spp., cvs.X | lavender | Low | Low | Low | Low | Moderate | Not App. |
SX | Lavatera assurgentiflora, cvs. (See Malva assurgentiflora)X | | | | | | | |
SX | Lavatera maritimaX | bush mallow | Low | Low | Low | Moderate | Unknown | Unknown |
SX | Lavatera olbiaX | tree mallow | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Lavatera thuringiaca (See Malva thuringiaca)X | | | | | | | |
SX | Lechenaultia bilobaX | blue lechenaultia | Low | Unknown | Low | Moderate | Unknown | Unknown |
SX | Lechenaultia formosa orangeX | orange lechenaultia | Low | Unknown | Low | Moderate | Unknown | Unknown |
BuX | Ledebouria cooperiX | Cooper's false scilla | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Ledebouria pauciflora (Scilla pauciflora)X | large-leafed scilla | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Ledebouria socialis (Scilla violacea)X | violet squill | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
PX | Lemaireocereus thurberi (See Stenocereus thurberi)X | | | | | | | |
SX | Leonotis leonurusX | lion's tail | Low | Low | Low | Low | Moderate | Unknown |
PX | Leonotis menthifoliaX | lion's tail | Low | Moderate | Low | Moderate | Unknown | Unknown |
PX | Leonotis nepetifoliaX | lion's tail | Low | Unknown | Low | Moderate | Unknown | Unknown |
PX | Leontopodium alpinumX | eidelweiss | Moderate | Moderate | Not App. | Not App. | Unknown | Unknown |
SX | Lepechinia calycinaX | pitcher sage | Low | Moderate | Low | Low | Unknown | Unknown |
SX | Lepechinia fragransX | fragrant pitcher sage | Low | Low | Low | Low | Unknown | Unknown |
SX | Lepechinia hastataX | Mexican pitcher sage | Low | Moderate | Low | Moderate | Unknown | Unknown |
GcX | Leptinella gruveri X | miniature brass buttons | High | Unknown | High | Unknown | Unknown | Unknown |
GcX | Leptinella x 'Platt's Black'X | Platt's black brass buttons | High | High | High | Unknown | Unknown | Unknown |
SX | Leptodermis oblongaX | Himalayan leptodermis | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SXTX | Leptospermum 'Dark Shadows'X | Dark Shadows tea tree | Low | Unknown | Low | Low | Not App. | Not App. |
SX | Leptospermum grandiflorumX | autumn tea tree | Low | Unknown | Unknown | Unknown | Not App. | Not App. |
SXTX | Leptospermum laevigatumX | Australian tea tree | Low | Low | Low | Low | Not App. | Not App. |
SX | Leptospermum laevigatum 'Reevesii'X | dwarf tea tree | Low | Unknown | Low | Low | Not App. | Not App. |
SXTX | Leptospermum petersoniiX | lemon-scented tea tree | Low | Unknown | Low | Low | Not App. | Not App. |
SXTX | Leptospermum polygalifoliumX | lemon scented tea tree | Unknown | Unknown | Low | Unknown | Not App. | Not App. |
SX | Leptospermum rotundifoliumX | tea tree | Low | Low | Low | Low | Not App. | Not App. |
GcXSX | Leptospermum rupestre (humifusum)X | tea tree | Low | Moderate | Low | Unknown | Not App. | Not App. |
SXTX | Leptospermum scopariumX | New Zealand tea tree | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Leptospermum turbinatumX | Grampian's tea tree | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
PX | Leptosyne gigantea (Coreopsis gigantea)X | giant coreopsis | Low | Very Low | Very Low | Low | Not App. | Not App. |
PX | Leptosyne maritima (Coreopsis maritima)X | sea dahlia | Low | Low | Very Low | Low | Moderate | Moderate |
PX | Lespedeza thunbergiiX | bush clover | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Lessertia montanaX | mountain cancer bush | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
GcX | Lessingia filaginifolia 'Silver Carpet' (Corethrogyne)X | California beach aster | Low | Moderate | Low | Moderate | Not App. | Not App. |
PX | Lessingia filaginifolia, cvs. (Corethrogyne)X | sand aster | Low | Low | Low | Moderate | Unknown | Unknown |
TX | Leucadendron argenteumX | silver tree | Low | Not App. | Low | Not App. | Not App. | Not App. |
SX | Leucadendron spp, hybrids, cvs.X | conebush | Low | Not App. | Low | Moderate | Unknown | Not App. |
TX | Leucaena greggiiX | Gregg lead tree | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Leucaena retusaX | golden leadball tree | Unknown | Unknown | Unknown | Unknown | Not App. | Low |
PX | Leucanthemum X superbum (Chrysanthemum maximum)X | Shasta daisy | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
BuX | Leucojum aestivumX | summer snowflake | Moderate | Low | Low | Moderate | Unknown | Unknown |
BuX | Leucojum autumnale (shade)X | autumn snowflake | Low | Low | Low | Low | Unknown | Unknown |
SX | Leucophyllum langmaniae 'Lynn's Legacy'X | Lynn's everblooming Texas sage | Unknown | Moderate | Unknown | Low | Low | Low |
SX | Leucophyllum spp., cvs.X | purple sage, Texas Ranger, etc. | Low | Low | Low | Low | Low | Low |
SX | Leucophyta brownii (Calocephalus brownii)X | cushion bush | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Leucosceptrum japonicumX | Golden Angel Japanese shrub mint | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Leucospermum spp., cvs.X | pincushion bush | Low | Unknown | Low | Moderate | Unknown | Unknown |
SX | Leucothoe axillarisX | coast leucothoe | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Leucothoe fontanesianaX | drooping laurel | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PXSuX | Lewisia columbiana rupicolaX | columbia lewisia | Low | Low | Low | Not App. | Unknown | Unknown |
PXSuX | Lewisia cotyledonX | bitter root | Low | Low | Low | Not App. | Unknown | Unknown |
PXSuX | Lewisia hybrids (CA natives, non-natives)X | lewisia | Low | Low | Low | Not App. | Unknown | Unknown |
SX | Leycesteria formosa X | pheasant berry | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Leymus arenarius X | sand ryegrass | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
GX | Leymus cinereus (See Elymus cenereus)X | | | | | | | |
GX | Leymus condensatus, cvs. (See Elymus condensatus cvs.)X | | | | | | | |
GX | Leymus triticoides (See Elymus triticoides)X | | | | | | | |
PX | Liatris spicataX | gay feather | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Libertia spp. (shade)X | libertia | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Ligularia dentata cvs.X | summer ragwort | High | High | High | High | Unknown | Unknown |
PX | Ligularia przewalskiiX | ragwort | High | Unknown | High | High | Unknown | Unknown |
PX | Ligularia stenocephalaX | golden rocket | Unknown | Unknown | High | High | Unknown | Unknown |
PX | Ligularia tussilaginea cvs. (See Farfugium sp.)X | | | | | | | |
SX | Ligustrum japonicumX | Japanese privet | Moderate | Low | Moderate | Moderate | Moderate | Moderate |
TX | Ligustrum lucidumX | glossy privet | Low | Low | Low | Moderate | Moderate | Moderate |
SX | Ligustrum ovalifoliumX | California privet | Low | Low | Moderate | Moderate | Unknown | Unknown |
SX | Ligustrum sinense 'Sunshine'X | Sunshine Chinese privet | Low | Low | Unknown | Unknown | Unknown | Unknown |
SX | Ligustrum vulgareX | wild privet | Very Low | Low | Unknown | Moderate | Unknown | Unknown |
SX | Ligustrum x vicaryiX | golden privet | Low | Low | Moderate | Moderate | Unknown | Unknown |
BuX | Lilium (garden hybrids)X | lily | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
BuX | Lilium columbianumX | Columbia lily | Moderate | Unknown | Not App. | Not App. | Moderate | Moderate |
BuX | Lilium formosanumX | Formosan lily | Moderate | Unknown | Moderate | Moderate | Moderate | Moderate |
BuX | Lilium humboldtiiX | Humboldt lily | Low | Very Low | Low | Low | Moderate | Moderate |
BuX | Lilium pardalinumX | leopard lily, Wiggins lily | Moderate | Very Low | Moderate | Low | Moderate | Moderate |
BuX | Lilium parryiX | lemon lily | Moderate | Unknown | Unknown | Moderate | Moderate | Moderate |
BuX | Lilium parvumX | alpine lily | Moderate | Unknown | Unknown | Not App. | Moderate | Moderate |
BuX | Lilium tigrinumX | tiger lily | Moderate | Unknown | Unknown | Moderate | Moderate | Moderate |
BuX | Lilium wallichianumX | wallichianum lily | Moderate | Unknown | Unknown | Unknown | Moderate | Moderate |
PX | Limonium californicum X | western marsh rosemary | Low | Low | Moderate | Moderate | Not App. | Not App. |
PX | Limonium perezii X | statice | Low | Moderate | Low | Moderate | Not App. | Not App. |
PX | Limonium speciosum (See Goniolemon incanum)X | | | | | | | |
PX | Limonium tataricum (See Goniolemon tataricum)X | | | | | | | |
PX | Limonium vulgare X | sea lavender | Unknown | Low | Low | Low | Not App. | Not App. |
PX | Linaria alpinaX | toadflax | Moderate | Not App. | Unknown | Moderate | Unknown | Unknown |
PX | Linaria hybridsX | toadflax | Low | Not App. | Unknown | Moderate | Unknown | Unknown |
PX | Linaria purpureaX | toadflax | Low | Moderate | Low | Moderate | Unknown | Unknown |
PX | Linaria supinaX | toadflax | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Lindernia grandiflora (Ilysanthes)X | blue moneywort | Unknown | Unknown | High | Unknown | Unknown | Unknown |
PX | Linum spp. (perennial)X | flax | Very Low | Very Low | Low | Low | Unknown | Unknown |
SX | Lippia graveolens X | Mexican oregano | Unknown | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Liquidambar formosanaX | Chinese sweet gum | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Liquidambar styracifluaX | sweet gum | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Liriodendron tulipiferaX | tulip tree | Moderate | Moderate | Moderate | High | Not App. | Not App. |
PX | Liriope spp.X | lilyturf | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Lithocarpus densiflorus (See Notholithocarpus densiflorus)X | | | | | | | |
TX | Lithocarpus edulis (Pasania edulis)X | Japanese false oak | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Lithodora diffusaX | heavenly blue | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
PmXTX | Livistona australisX | Australia fountain palm | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
PmXTX | Livistona chinensisX | Chinese fan palm | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
PmXTX | Livistona decipiensX | weeping cabbage palm | Not App. | Unknown | Moderate | Moderate | Unknown | Unknown |
PmXTX | Livistona mariaeX | central Australian fan palm | Not App. | Not App. | Moderate | Unknown | Unknown | Unknown |
PmXTX | Livistona rigidaX | Mataranka fan palm | Not App. | Not App. | Moderate | Unknown | Unknown | Unknown |
GcX | Lobelia angulata (Pratia angulata)X | creeping pratia | Moderate | High | High | High | Not App. | Not App. |
PX | Lobelia cardinalis hybrids, cvs. (CA native, non-native spp.)X | cardinal flower | High | High | High | High | Unknown | Unknown |
PX | Lobelia chinensisX | lobelia (chinensis) | High | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Lobelia dunnii var. serrataX | Dunn's lobelia | Unknown | Unknown | High | High | Unknown | Unknown |
PX | Lobelia dunniiX | Dunn's lobelia | Unknown | Unknown | High | High | Unknown | Unknown |
SX | Lobelia excelsaX | Chilean lobelia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Lobelia fulgensX | Mexican cardinal flower | High | High | High | Unknown | Unknown | Unknown |
SX | Lobelia laxifloraX | Mexican lobelia | Low | Low | Low | Low | Moderate | Moderate |
GcX | Lobelia pedunculata cvs. (Pratia pedunculata)X | matted pratia | Moderate | Unknown | High | Unknown | Unknown | Unknown |
PX | Lobelia richardiiX | perennial lobelia | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Lobelia siphiliticaX | great blue lobelia | High | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Lobelia tupaX | giant red lobelia | Low | Low | Moderate | Unknown | Unknown | Unknown |
SX | Lobostemon fruticosusX | pajama bush | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Loeselia mexicana 'Red Eva'X | espinosilla | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Lomandra confertifoliaX | mat rush | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Lomandra hystrixX | creek mat rush | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Lomandra longifoliaX | spiny-headed mat rush | Low | Unknown | Low | Moderate | Unknown | Unknown |
PX | Lomatium californicumX | California celery | Low | Not App. | Very Low | Very Low | Unknown | Unknown |
PX | Lomatium dasycarpumX | lace parsnip | Unknown | Unknown | Very Low | Very Low | Unknown | Unknown |
V | Lonicera ciliosaX | orange honeysuckle | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
V | Lonicera confusaX | honeysuckle (confusa) | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Lonicera etruscaX | Etruscan honeysuckle | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Lonicera fragrantissimaX | sweet breath of spring | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
V | Lonicera hildebrandianaX | giant Burmese honeysuckle | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
V | Lonicera hispidula X | California honeysuckle | Low | Low | Low | Very Low | Unknown | Unknown |
SX | Lonicera interruptaX | chaparral honeysuckle | Low | Low | Low | Low | Unknown | Unknown |
SX | Lonicera involucrataX | twinberry | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXV | Lonicera japonicaX | Japanese honeysuckle | Moderate | Moderate | Low | Low | Moderate | Moderate |
V | Lonicera japonica 'Purpurea'X | purple-leaf Japanese honeysuckle | Moderate | Moderate | Low | Moderate | Unknown | Unknown |
SX | Lonicera nitidaX | box honeysuckle | Low | Moderate | Not App. | Moderate | Not App. | Unknown |
V | Lonicera periclymenumX | flowering woodbine | Low | Low | Unknown | Unknown | Unknown | Unknown |
SX | Lonicera pileataX | privet honeysuckle | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
V | Lonicera sempervirensX | trumpet honeysuckle | Moderate | Moderate | Unknown | Moderate | Moderate | Moderate |
V | Lonicera subspicataX | chaparral honeysuckle | Low | Unknown | Low | Low | Unknown | Unknown |
SX | Lonicera syringantha 'Grandiflora'X | Grandiflora honeysuckle | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Lonicera tataricaX | tatarian honeysuckle | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Lonicera x 'Mandarin'X | Mandarin honeysuckle | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Lonicera x americana X | Americana honeysuckle | Moderate | Unknown | Unknown | Unknown | Moderate | Unknown |
V | Lonicera x brownii X | Brown's honeysuckle | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Lonicera x heckrottiiX | Gold Flame honeysuckle | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Lophomyrtus cvs.X | New Zealand myrtle | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
V | Lophospermum erubescens (Asarina/Maurandya)X | creeping gloxinia | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Lophostemon confertus (Tristania conferta)X | Brisbane box | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Loropetalum chinense, cvs.X | fringe flower | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Lotus berthelotiiX | Parrot's beak | Low | Unknown | Moderate | Moderate | Unknown | Unknown |
GcX | Lotus corniculatusX | birdsfoot trefoil | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Lotus crassifolius var. otayensis (See Hosackia crassifolia var. otayensis)X | | | | | | | |
PX | Lotus rigidus (See Acmispon rigidus)X | | | | | | | |
PX | Lotus scoparius (See Acmispon glaber)X | | | | | | | |
SX | Luculia gratissimaX | luculia | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Luculia intermediaX | Yunan luculia | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
SX | Luculia pinceanaX | luculia | Moderate | Not App. | Unknown | Not App. | Unknown | Unknown |
SX | Luma apiculataX | palo Colorado | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Lupinus (Russell hybrids)X | Russell lupines | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
SX | Lupinus albifronsX | silver lupine | Very Low | Low | Low | Low | Not App. | Not App. |
SX | Lupinus arboreusX | coastal bush lupine | Low | Low | Low | Not App. | Not App. | Not App. |
SX | Lupinus chamissonisX | silver dune lupine | Low | Unknown | Low | Low | Not App. | Not App. |
SX | Lupinus excubitusX | grape soda lupine | Very Low | Very Low | Low | Low | Not App. | Not App. |
PX | Lupinus formosusX | summer lupine | Unknown | Moderate | Unknown | Low | Unknown | Unknown |
PX | Lupinus latifoliusX | broadleaf lupine | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Lupinus polyphyllusX | bigleaf lupine | High | Moderate | Unknown | Not App. | Unknown | Unknown |
SX | Lupinus propinquus (nomen. status unresolved)X | blue bush lupine | Low | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Lupinus variicolorX | many-colored lupine | Low | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Luzula niveaX | snowy woodrush | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Luzula purpureaX | purple woodrush | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Luzula sylvaticaX | greater woodrush | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Lychnis alpinaX | alpine campion | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Lychnis chalcedonicaX | Maltese cross | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Lychnis coronariaX | rose campion/crown pink | Low | Low | Low | Low | Unknown | Unknown |
SX | Lycianthes rantonnetiiX | Paraguay nightshade/blue potato bush | Moderate | Moderate | Moderate | Moderate | Not App. | Unknown |
SX | Lycium andersoniiX | desert wolfberry | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
SX | Lycium brevipesX | Baja desert thorn | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
SX | Lycium californicumX | box thorn | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
SX | Lycium exsertumX | boxthorn | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Lycium fremontiiX | wolfberry | Unknown | Low | Very Low | Low | Low | Low |
GX | Lygeum spartumX | false esparto grass | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Lygodium japonicumX | climbing fern | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Lyonia lucidaX | shining fetterbush | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Lyonothamnus spp.X | ironwood | Low | Not App. | Low | Low | Not App. | Not App. |
PX | Lysichiton americanusX | skunk cabbage | High | Not App. | High | Not App. | Unknown | Not App. |
SXTX | Lysiloma candidaX | palo blanca | Not App. | Not App. | Low | Unknown | Not App. | Low |
TX | Lysiloma watsoniiX | feather bush | Not App. | Not App. | Low | Low | Not App. | Low |
GcXPX | Lysimachia spp.X | loosestrife/moneywort | High | High | High | High | Not App. | Not App. |
TX | Macadamia spp.X | macadamia nut | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
V | Macfadyena unguis-catiX | cat's claw | Low | Low | Low | Low | Low | Low |
SX | Mackaya bella (shade)X | forest bell bush | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
PX | Macleaya spp.X | plume poppy | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Macropidia fuliginosaX | black kangaroo paw | Very Low | Unknown | Moderate | Not App. | Unknown | Unknown |
PmXSXTX | Macrozamia mooreiX | New South Wales macrozamia | Moderate | Not App. | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia cavaleriei var. platypetala (Michelia platypetala)X | magnolia (cavalieri) | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Magnolia champaca (Michelia champaca)X | fragrant Himalayan champaca | Moderate | Unknown | Moderate | Unknown | Not App. | Not App. |
TX | Magnolia cylindricaX | Huangshan magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia dawsonianaX | Dawson's magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia denudataX | Yulan magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia doltsopa (Michelia doltsopa)X | wong-lan | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Magnolia ernestii (Michelia wilsonii)X | lily tree magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Magnolia figo (Michelia figo)X | banana shrub | Moderate | Moderate | Moderate | Moderate | Not App. | Unknown |
TX | Magnolia grandifloraX | southern magnolia | Moderate | Moderate | Moderate | Moderate | Not App. | High |
TX | Magnolia hybridsX | hybrid magnolias | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia hypoleucaX | whitebark magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Magnolia kobusX | kobus magnolia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Magnolia laevifolia (Michelia yunnanensis)X | Yunan magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Magnolia liliifloraX | lily magnolia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Magnolia lotungensis (Parakmeria lotungensis)X | lotungensis magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia maudiaeX | in the mountains Michelia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia officinalisX | Houpu magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia sargentianaX | Sargent's magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SXTX | Magnolia sieboldiiX | Oyama magnolia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia sprengeri 'Diva'X | Sprenger's magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Magnolia stellataX | star magnolia | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Magnolia virginianaX | sweet bay magnolia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia x 'Vulcan'X | Vulcan magnolia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Magnolia x foggii (Michelia unresolved)X | improved banana shrub | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SXTX | Magnolia x loebneriX | loebner magnolia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia x soulangeanaX | saucer magnolia | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Magnolia x veitchiiX | veitch magnolia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Magnolia x YellowbirdX | yellow bird magnolia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
GcXSX | Mahonia (See Berberis)X | | | | | | | |
SX | Mahonia lomariifolia (See M. oiwakensis)X | | | | | | | |
SX | Mahonia napaulensis (M. sikkimensis)X | Nepal mahonia | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Mahonia oiwakensis (M. lomariifolia)X | Chinese holly grape | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
SX | Mahonia sikkimensis (See M. napaulensis)X | | | | | | | |
PX | Maianthemum dilatatumX | May lily | Moderate | High | High | Not App. | Unknown | Unknown |
PX | Maianthemum racemosum (Smilacina racemosa)X | false Soloman's seal | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
PX | Maianthemum stellatum (Smilacina stellata)X | starry Soloman's seal | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Maireana sedifoliaX | pearl bluebush | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Malacothamnus clementinusX | San Clemente Island bush mallow | Unknown | Low | Very Low | Low | Unknown | Not App. |
SX | Malacothamnus fasciculatusX | bush mallow | Very Low | Low | Very Low | Low | Not App. | Not App. |
SX | Malacothamnus fremontiiX | Fremont's bush mallow | Very Low | Low | Very Low | Low | Unknown | Unknown |
SX | Malacothamnus jonesiiX | Jones bush mallow | Low | Unknown | Very Low | Low | Unknown | Unknown |
SX | Malacothamnus palmeriX | Palmer's mallow | Low | Low | Low | Low | Unknown | Unknown |
PX | Malacothrix saxatilis implicataX | cliff desert dandelion | Unknown | Unknown | Very Low | Unknown | Unknown | Unknown |
SX | Malaviscus arboreusX | Turk's cap | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
GcX | Malephora spp.X | ice plant (Malephora) | Low | Low | Very Low | Low | Low | Unknown |
SX | Malosma laurina (Rhus laurina)X | laurel sumac | Very Low | Low | Very Low | Low | Not App. | Not App. |
SX | Malpighia glabra X | Barbados cherry | Unknown | Unknown | Unknown | Unknown | Moderate | Moderate |
TX | Malus fuscaX | western crabapple | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Malus hybridsX | crabapple | Moderate | Moderate | Not App. | Moderate | Moderate | Not App. |
TX | Malus spp. (edible)X | apple | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Malus spp. (edible) e.g. 'Anna' (low-chill variety for low desert)X | apple | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Malva assurgentiflora, cvs. (Lavatera assurgentiflora)X | tree mallow | Low | Moderate | Low | Low | Not App. | Moderate |
PX | Malva sylvestris 'Zebrina'X | zebra mallow | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Malva thuringiaca (Lavatera thuringiaca)X | tree lavatera | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Malvaviscus arboreusX | Turk's cap | Unknown | Unknown | Low | Low | Unknown | Unknown |
PXSuX | Mammillaria geminispinaX | cactus | Very Low | Unknown | Very Low | Very Low | Very Low | Very Low |
PXSuX | Mammillaria melanocentraX | cactus | Very Low | Unknown | Very Low | Unknown | Very Low | Very Low |
V | Mandevilla cvs.X | Alice Dupont, etc. | Moderate | Not App. | Moderate | High | Not App. | High |
V | Mandevilla laxa (M. suaveolens)X | Chilean jasmine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Mandevilla splendensX | mandevilla | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
SX | Mandevilla suaveolens (See M. laxa)X | | | | | | | |
PX | Manfreda spp.X | manfreda | Low | Moderate | Low | Low | Moderate | Moderate |
TX | Manglietia insignisX | red lotus tree | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Manihot spp.X | cassava | Not App. | Not App. | Moderate | Low | Unknown | Unknown |
SX | Marcetella moquinianaX | marcetella | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Markhamia lutea (hildebrandtii)X | markhamia | Unknown | Not App. | Moderate | Not App. | Not App. | Not App. |
SX | Marrubium bourgaei 'All Hallows Green'X | All Hallows Green horehound | Low | Low | Low | Moderate | Unknown | Unknown |
V | Mascagnia lilacinaX | purple orchid vine | Unknown | Unknown | Low | Unknown | Unknown | Moderate |
V | Mascagnia macropteraX | yellow orchid vine | Unknown | Unknown | Low | Unknown | Unknown | Moderate |
PX | Mathiasella bupleuroidesX | green dream | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
PX | Matteuccia orientalisX | oriental ostrich fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Matteuccia struthiopterisX | ostrich fern | Moderate | Moderate | Moderate | High | Unknown | Unknown |
TX | Maytenus boariaX | mayten tree | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SXTX | Maytenus phyllanthoidesX | mangle dulce | Unknown | Unknown | Low | Unknown | Unknown | Low |
GcX | Mazus radicansX | freckled mazus | Unknown | Moderate | Moderate | Unknown | Unknown | Unknown |
GcXPX | Mazus reptansX | mazus | Moderate | Moderate | Moderate | High | Unknown | Unknown |
SX | Medicago arboreaX | tree alfalfa | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SXTX | Melaleuca armillarisX | bracelet honey-myrtle | Very Low | Not App. | Low | Moderate | Not App. | Moderate |
TX | Melaleuca bracteata 'Revolution Green'X | river tea tree | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Melaleuca decoraX | white feather honey myrtle | Low | Unknown | Low | Unknown | Unknown | Unknown |
SXTX | Melaleuca decussataX | totem poles (lilac melaleuca) | Very Low | Not App. | Low | Moderate | Not App. | Moderate |
SXTX | Melaleuca ellipticaX | granite honey-myrtle | Very Low | Not App. | Low | Moderate | Not App. | Moderate |
TX | Melaleuca ericifoliaX | heath melaleuca | Low | Not App. | Low | Unknown | Unknown | Unknown |
SX | Melaleuca fulgensX | scarlet honey myrtle | Low | Not App. | Low | Moderate | Not App. | Not App. |
SX | Melaleuca huegeliiX | chenile honey-myrtle | Unknown | Not App. | Low | Moderate | Not App. | Not App. |
SX | Melaleuca incanaX | grey honey-myrtle | Low | Unknown | Low | Moderate | Not App. | Not App. |
TX | Melaleuca lanceolataX | black tea | Unknown | Low | Low | Low | Not App. | Not App. |
SX | Melaleuca lateritiaX | robin redbreast bush | Low | Unknown | Low | Unknown | Not App. | Not App. |
TX | Melaleuca linariifoliaX | flax leaf paper bark | Low | Low | Low | Low | Not App. | Not App. |
TX | Melaleuca nesophilaX | pink melaleuca | Low | Low | Low | Low | Not App. | Not App. |
TX | Melaleuca quinquenervia (See M. viridifolia var. rubifolia)X | | | | | | | |
TX | Melaleuca rhaphiophyllaX | swamp paper bark | Unknown | Not App. | Low | Low | Not App. | Not App. |
TX | Melaleuca squamea X | swamp honey-myrtle | Unknown | Unknown | Low | Moderate | Not App. | Moderate |
TX | Melaleuca styphelioidesX | prickly-leaved paperback | Low | Low | Low | Moderate | Not App. | Moderate |
SX | Melaleuca thymifoliaX | thyme honey-myrtle | Low | Low | Low | Unknown | Unknown | Unknown |
TX | Melaleuca viridiflora var. rubriflora (M. quinquenervia)X | cajeput tree | Low | Low | Low | Moderate | Not App. | Moderate |
SX | Melaleuca wilsoniiX | Wilson melaleuca | Low | Low | Unknown | Unknown | Not App. | Not App. |
PX | Melampodium leucanthumX | blackfoot daisy | Low | Not App. | Low | Low | Low | Low |
TX | Melia azedarachX | chinaberry | Very Low | Low | Very Low | Low | Low | Low |
SX | Melianthus majorX | honey flower | Low | Moderate | Low | Moderate | Unknown | Unknown |
SX | Melianthus minorX | honey bush | Low | Unknown | Low | Moderate | Unknown | Unknown |
SX | Melianthus pectinatusX | honeybush | Low | Unknown | Low | Unknown | Unknown | Unknown |
SX | Melianthus villosusX | honey bush | Low | Unknown | Low | Unknown | Unknown | Unknown |
GX | Melica californicaX | oniongrass | Unknown | Very Low | Low | Unknown | Unknown | Unknown |
GX | Melica imperfecta X | coast range onion grass | Very Low | Very Low | Very Low | Moderate | Unknown | Unknown |
GX | Melica torreyanaX | Torrey's melic | Unknown | Very Low | Unknown | Unknown | Unknown | Unknown |
GX | Melinis nerviglumis (Rhynchelytrum nerviglume)X | rubygrass | Moderate | Moderate | Moderate | Moderate | Unknown | Moderate |
GcXPX | Melissa officinalisX | lemon balm | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Melittis melissophyllumX | bastard balm | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GcXPX | Mentha spp. (CA native, non-native spp.)X | mint | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
V | Merremia aureaX | merremia (aurea) | Unknown | Unknown | Low | Low | Not App. | Moderate |
V | Merremia quinquefoliaX | merremia (quinquefolia) | Unknown | Unknown | Unknown | Unknown | Not App. | Moderate |
PX | Mertensia virginicaX | Virginia bluebells | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
TX | Meryta sinclairiiX | puka | Not App. | Not App. | Moderate | Unknown | Not App. | Not App. |
TX | Metasequoia glyptostroboidesX | dawn redwood | High | High | High | High | Not App. | Not App. |
SX | Metrosideros collina, cvs.X | Lehua of Hawaii | Unknown | Not App. | Moderate | Unknown | Not App. | Not App. |
TX | Metrosideros excelsa (M. tomentosa)X | New Zealand Christmas tree | Low | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Metrosideros kermadecensis 'Tahiti'X | dwarf pohutukawa | Unknown | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Metrosideros tomentosa (See M. excelsa)X | | | | | | | |
| Micranthes spp. (some CA natives) (Saxifraga)X | saxifrage | | | | | | |
GcXSX | Microbiota decussataX | Siberian cypress | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Microlepia strigosaX | lace fern | Moderate | Not App. | Moderate | High | Not App. | Not App. |
PX | Microsorum pustulatumX | kangaroo fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Milium effusumX | golden wood millet | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Millettia reticulataX | evergreen wisteria | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
V | Millettia taiwanensisX | Chinese evergreen wisteria | High | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Mimulus aurantiacus (Diplacus arachnoideus)X | sticky monkey flower | Very Low | Low | Very Low | Very Low | Not App. | Not App. |
SX | Mimulus aurantiacus var. puniceusX | red bush monkey flower | Very Low | Low | Very Low | Very Low | Not App. | Not App. |
SX | Mimulus hybrids (shrubby) (Diplacus)X | monkey flower | Low | Low | Low | Low | Not App. | Not App. |
PX | Mimulus spp. (herbaceous) X | monkey flower | High | High | High | High | Not App. | Not App. |
PX | Mirabilis bigelovii (See M. laevis var. villosa)X | | | | | | | |
PX | Mirabilis californica (See M. laevis var. crassifolia)X | | | | | | | |
PX | Mirabilis jalapaX | four o'clock | Very Low | Low | Very Low | Low | Moderate | Moderate |
PX | Mirabilis laevis var. crassifolia (M. californica)X | wishbone bush | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Mirabilis laevis var. villosa (M.bigelovii)X | desert four o'clock | Very Low | Low | Very Low | Low | Unknown | Unknown |
PX | Mirabilis multifloraX | four o'clock | Low | Low | Unknown | Low | Unknown | Unknown |
GX | Miscanthus sinensis, cvs.X | eulalia grass | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
GX | Miscanthus transmorrisonensisX | evergreen eulalia | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
GX | Molinia caeruleaX | moor grass | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Monarda didyma X | scarlet bee balm | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Monardella antonina (See Monardella villosa subsp. villosa)X | | | | | | | |
PX | Monardella crispa (See Monardella undulata subsp. crispa)X | | | | | | | |
PX | Monardella linoidesX | flax leaf monardella | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Monardella macranthaX | scarlet monardella | Low | Low | Low | Moderate | Unknown | Unknown |
PX | Monardella odoratissimaX | mountain pennyroyal | Low | Moderate | Low | Low | Unknown | Unknown |
PX | Monardella undulata subsp. crispa (M. crispa)X | crisp monardella | Unknown | Unknown | Low | Not App. | Unknown | Unknown |
PX | Monardella villosaX | coyote mint | Very Low | Very Low | Very Low | Low | Unknown | Unknown |
PX | Monardella villosa subsp. villosa (M. antonina)X | butterfly mint bush | Unknown | Unknown | Very Low | Unknown | Not App. | Not App. |
PX | Monochaetum vulcanicumX | monochaetum | Moderate | Unknown | Moderate | High | Unknown | Unknown |
GcX | Monopsis unidentata 'Royal Flush'X | royal flush monopsis | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Monstera deliciosaX | split leaf philodendron | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Montanoa grandifloraX | daisy tree | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
BuX | Moraea spp. (summer growing)X | moraea | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
BuX | Moraea spp. (winter growing)X | moraea | Very Low | Very Low | Low | Very Low | Unknown | Unknown |
SX | Morella californica (Myrica californica)X | Pacific wax myrtle | Moderate | Moderate | Low | Moderate | Not App. | Not App. |
PX | Morina longifoliaX | whorlflower | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Morus albaX | white mulberry | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Morus australis 'Unryu'X | contorted mulberry | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXV | Muehlenbeckia axillarisX | creeping wire vine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
GcXV | Muehlenbeckia complexa X | maidenhair vine | Low | Moderate | Moderate | Moderate | Not App. | Moderate |
GX | Muhlenbergia capillaris, cvs.X | hairy awn muhly | Low | Low | Moderate | Low | Moderate | Moderate |
GX | Muhlenbergia dubiaX | pine muhly | Low | Low | Low | Low | Unknown | Unknown |
GX | Muhlenbergia dumosaX | bamboo muhly | Low | Moderate | Low | Low | Moderate | Moderate |
GX | Muhlenbergia emersleyiX | bull grass | Moderate | Unknown | Low | Unknown | Moderate | Moderate |
GX | Muhlenbergia filipesX | purply muhly | Low | Low | Moderate | Unknown | Unknown | Unknown |
GX | Muhlenbergia lindheimeriX | Lindheimer muhly | Low | Low | Low | Moderate | Moderate | Moderate |
GX | Muhlenbergia montanaX | mountain muhly | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Muhlenbergia porteriX | bush muhly | Unknown | Unknown | Unknown | Unknown | Moderate | Unknown |
GX | Muhlenbergia pubescensX | soft muhly | Low | Low | Low | Unknown | Unknown | Unknown |
GX | Muhlenbergia rigensX | deer grass | Low | Low | Low | Moderate | Moderate | Moderate |
GX | Muhlenbergia rigida 'Nashville'X | Nashville deer grass | Unknown | Unknown | Moderate | Unknown | Moderate | Moderate |
GcX | Mukdenia rossiiX | red-leafed mukdinia | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Murraya exoticaX | orange jessamine | Not App. | Not App. | Moderate | Moderate | Unknown | Moderate |
SX | Murraya paniculataX | orange jessamine | Unknown | Not App. | Moderate | Moderate | Not App. | Moderate |
PXSX | Musa spp. (shade in low desert)X | banana | High | High | High | High | Not App. | Moderate |
BuX | Muscari macrocarpumX | grape hyacinth | Very Low | Very Low | Very Low | Very Low | Moderate | Moderate |
PX | Musella lasiocarpaX | golden lotus banana | Unknown | High | High | Moderate | Unknown | Unknown |
V | Mutisia subulataX | clavel de campo | Unknown | Unknown | Not App. | Unknown | Unknown | Unknown |
SXTX | Myoporum laetumX | coast myoporum | Low | Moderate | Low | Moderate | Not App. | Not App. |
GcXSX | Myoporum parvifolium, cvs.X | myoporum | Low | Low | Low | Low | Moderate | Moderate |
GcXSX | Myoporum x 'Pacificum'X | pacifica saltbush | Low | Low | Low | Moderate | Not App. | Not App. |
PX | Myosotis scorpioidesX | forget-me-not | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Myrica californica (See Morella californica)X | | | | | | | |
SX | Myrica ceriferaX | southern wax myrtle | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Myrica pennsylvanicaX | bayberry | Moderate | Moderate | Moderate | Unknown | Not App. | Not App. |
SX | Myrica rubraX | Chinese strawberry tree | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Myrsine africanaX | African boxwood | Low | Low | Low | Moderate | Not App. | Not App. |
SX | Myrtus communisX | true myrtle | Low | Low | Low | Moderate | Moderate | Moderate |
TX | Nageia nagi (Podocarpus nagi)X | nageia | Moderate | Moderate | Moderate | Moderate | Unknown | Moderate |
SX | Nandina domesticaX | heavenly bamboo | Low | Low | Low | Moderate | Moderate | Moderate |
SX | Nandina domestica 'Purpurea'X | heavenly bamboo (Nana) | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
BuX | Narcissus spp.X | daffodil | Very Low | Very Low | Very Low | Very Low | Low | Low |
GX | Nassella cernua, lepida, pulchra (See Stipa)X | | | | | | | |
GX | Nassella giganteaX | giant needle grass | Low | Low | Low | Low | Unknown | Unknown |
PX | Nauplius sericeus (Asteriscus sericeus)X | Canary Island daisy | Low | Low | Very Low | Not App. | Not App. | Not App. |
PX | Nemesia caerulea X | nemesia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Nemesia denticulataX | toothed aloha | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Nemesia fruticansX | bluebird | Moderate | High | Moderate | Unknown | Unknown | Unknown |
TX | Neolitsea sericeaX | Japanese silver tree | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Neomarica caeruleaX | poor man's orchid | Low | Low | Moderate | Moderate | Unknown | Unknown |
PX | Nepeta spp.X | catmint/catnip | Low | Low | Moderate | Moderate | Moderate | Moderate |
PX | Nephrolepis biserrata 'Macho fern' X | macho fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Nephrolepis cordifolia (shade in desert)X | southern sword fern | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Nephrolepis exaltata (shade)X | Boston fern | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Nephrolepis obliterata (shade)X | Australian sword fern | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
BuX | Nerine spp. (summer growing)X | nerine | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
BuX | Nerine spp. (winter growing)X | nerine | Low | Low | Low | Very Low | Moderate | Moderate |
SX | Nerium oleander, cvs.X | oleander | Low | Low | Low | Low | Moderate | Moderate |
SX | Neviusia cliftoniiX | Shasta snow wreath | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Nicotiana sylvestrisX | flowering tobacco | Moderate | Moderate | Moderate | Low | Unknown | Unknown |
PXSX | Nolina guatemalensis, recurvata, stricta (See Beaucarnea)X | | | | | | | |
PXSX | Nolina spp. (CA natives, non-natives)X | bear grass | Very Low | Very Low | Very Low | Very Low | Low | Low |
TX | Nothofagus cunninghamianaX | myrtle beech | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
TX | Notholithocarpus densiflorus (Lithocarpus densiflorus)X | tanbark oak | Low | Not App. | Low | Low | Not App. | Not App. |
SX | Nylandtia scoparia X | tortoise berry | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Nyssa sylvaticaX | sour gum/tupelo | Moderate | Moderate | Moderate | High | Not App. | Not App. |
PX | Ochagavia litoralisX | cardoncillo | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
BaXSX | Ochlandra stridulaX | reed bamboo | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Ochna serrulataX | bird's eye bush | Low | Not App. | Low | Moderate | Not App. | Not App. |
SX | Odontonema callistachyumX | purple firespike | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Odontonema strictumX | firespike | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
| Odontospermum (See Pallenis, Nauplius, Asteriscus)X | | | | | | | |
SX | Oemleria cerasiformisX | osoberry | Moderate | Unknown | Low | Low | Unknown | Unknown |
PX | Oenothera berlandieri (See Oenothera speciosa)X | | | | | | | |
PX | Oenothera caespitosaX | tufted (white) evening primrose | Low | Low | Very Low | Low | Low | Low |
PX | Oenothera californicaX | California evening primrose | Unknown | Low | Very Low | Very Low | Unknown | Low |
PX | Oenothera cheiranthifolia (See Camissoniopsis cheiranthifolia)X | | | | | | | |
PX | Oenothera elata (E. hookeri)X | Hooker's evening primrose | Low | Low | Low | Low | Unknown | Unknown |
PX | Oenothera fruticosa (See Kneiffia fruticosa)X | | | | | | | |
PX | Oenothera kunthianaX | Kunth's evening primrose | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GcXPX | Oenothera macrocarpa X | Missouri evening primrose | Moderate | Low | Low | Low | Unknown | Unknown |
PX | Oenothera pallidaX | white evening primrose | Low | Low | Low | Unknown | Unknown | Unknown |
PX | Oenothera roseaX | pink evening primrose | Moderate | Low | Low | Unknown | Unknown | Unknown |
GcXPX | Oenothera speciosa (O. berlandieri) X | Mexican evening primrose | Low | Low | Low | Low | Moderate | Moderate |
GcXPX | Oenothera stubbeiX | Baja evening primrose | Low | Low | Low | Low | Low | Low |
PX | Oenothera versicolor 'Sunset Boulevard'X | Sunset Boulevard evening primrose | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Olea africanaX | African olive | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Olea europaeaX | olive | Very Low | Very Low | Low | Low | Low | Low |
SX | Olearia x scilloniensisX | daisy bush | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Olmediella betschleranaX | Guatemalan holly | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Olneya tesotaX | desert ironwood | Not App. | Not App. | Not App. | Low | Low | Low |
PX | Omphalodes cappadocicaX | navelwort | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Omphalodes vernaX | creeping forget-me-not | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Onoclea sensibilisX | sensitive fern | High | High | Moderate | Unknown | Unknown | Unknown |
TX | Operculicarya decaryiX | elephant tree | Not App. | Unknown | Low | Unknown | Unknown | Unknown |
PX | Ophiopogon clarkei (shade in desert)X | Clark lily turf | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Ophiopogon jaburan (shade in desert)X | giant lily turf | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Ophiopogon japonicus (shade in desert)X | mondo grass | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Ophiopogon planiscapus var. nigrescens (shade in desert)X | black mondo grass | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SXSuX | Opuntia spp., cvs. (CA natives, non-natives)X | prickly pear/cholla | Very Low | Very Low | Very Low | Very Low | Very Low | Very Low |
PX | Origanum spp., cvs.X | dittany/oregano, etc. | Moderate | Moderate | Low | Low | Unknown | Unknown |
BuX | Ornithogalum arabicumX | star of Bethlehem | Low | Low | Low | Low | Unknown | Unknown |
BuX | Ornithogalum regale (Galtonia regalis)X | ornithogalum | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Ornithogalum thyrsoidesX | chincherinchee | Unknown | Unknown | Low | Low | Unknown | Unknown |
SX | Ornithostaphylos oppositifoliaX | Palo blanco | Unknown | Very Low | Very Low | Low | Unknown | Unknown |
PX | Orphium frutescensX | sea rose | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Orthosiphon labiatusX | shell bush | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Orthrosanthus var. chimboracensis centroamericanus (now O. monadelphus)X | orthrosantus | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Orthrosanthus multiflorusX | blue flag | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
GX | Oryzopsis hymenoides (See Stipa hymenoides)X | | | | | | | |
| Oscularia deltoidesX | pink iceplant | Low | Low | Low | Low | Unknown | Unknown |
SX | Osmanthus spp.X | sweet olive/osmanthus | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Osmunda cinnamomeaX | cinnamon fern | High | High | High | High | Not App. | Not App. |
PX | Osmunda regalisX | royal/flowering fern | High | High | High | Unknown | Not App. | Not App. |
GcX | Osteospermum spp.X | African daisy | Low | Low | Low | Low | Not App. | Not App. |
BaXSX | Otatea acuminata (aztecorum)X | Mexican weeping bamboo | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Otholobium fruticansX | blue cape pea | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PXSuX | Othonna capensisX | little pickles ice plant | Low | Unknown | Low | Unknown | Unknown | Unknown |
PX | Oxalis oregana (shade)X | redwood sorrel | Moderate | High | High | Not App. | Unknown | Unknown |
PX | Oxalis spp.X | sorrel/shamrock | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
V | Oxera pulchella X | royal climber | Unknown | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Oxydendrum arboreumX | sourwood tree | Moderate | Moderate | Not App. | Unknown | Unknown | Not App. |
PX | Oxypetalum coeruleum (Tweedia coerulea)X | southern star | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Ozothamnus coralloidesX | coral shrub | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Ozothamnus diosmifoliusX | rice flower | Unknown | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Ozothamnus rosmarinifolius (Helichrysum rosmarinifolius)X | Australian pill flower bush | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SXSuX | Pachycereus marginatusX | Mexican fence post cactus | Unknown | Unknown | Very Low | Very Low | Very Low | Very Low |
TX | Pachycormus discolorX | elephant tree | Unknown | Unknown | Very Low | Unknown | Not App. | Low |
PXSuX | Pachyphytum spp.X | moonstones | Low | Not App. | Low | Low | Unknown | Unknown |
TX | Pachypodium lamereiX | pachypodium | Unknown | Not App. | Very Low | Moderate | Not App. | Moderate |
GcX | Pachysandra terminalisX | Japanese spurge | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
PX | Paeonia low-chill hybridsX | peony | Moderate | Moderate | Unknown | Not App. | Not App. | Not App. |
PX | Paeonia spp.X | peony | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
PX | Pallenis maritima (Asteriscus maritima, Odontospermum)X | gold coin, Canary Island daisy | Moderate | Moderate | Low | Moderate | Not App. | Not App. |
V | Pandorea jasminoidesX | bower vine | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
V | Pandorea pandoranaX | wonga wonga vine | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
GX | Panicum spp.X | panic grass | Unknown | Low | Unknown | Low | Unknown | Unknown |
GX | Panicum virgatum, cvs.X | switch grass | Moderate | Low | Moderate | Moderate | Moderate | Unknown |
PX | Papaver orientaleX | oriental poppy | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Papaver pilosumX | hairy poppy | Low | Not App. | Moderate | Unknown | Unknown | Unknown |
PX | Parahebe linifoliaX | white parahebe | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Parahebe perfoliataX | veronica/speedwell | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PmXTX | Parajubaea torallyiX | Bolivian mountain coconut | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Parkinsonia 'Desert Museum' (Cercidium)X | Desert Museum palo verde | Unknown | Very Low | Very Low | Low | Unknown | Low |
TX | Parkinsonia 'Sonorae'X | Sonoran palo verde | Unknown | Unknown | Unknown | Very Low | Not App. | Low |
TX | Parkinsonia aculeataX | Mexican palo verde/ Jerusalem thorn | Very Low | Very Low | Low | Low | Low | Low |
TX | Parkinsonia florida (Cercidium florida)X | blue palo verde | Very Low | Very Low | Very Low | Very Low | Not App. | Low |
TX | Parkinsonia microphylla (Cercidium microphyllum)X | little leaf palo verde | Very Low | Very Low | Very Low | Low | Not App. | Low |
TX | Parkinsonia praecox (Cercidium praecox)X | palo brea tree | Unknown | Very Low | Low | Low | Not App. | Low |
GcX | Parochetus communisX | shamrock pea | Moderate | High | Unknown | Unknown | Unknown | Unknown |
TX | Parrotia persicaX | Persian witch hazel | Moderate | Unknown | Moderate | Low | Unknown | Not App. |
GcXV | Parthenocissus henryanaX | silver vein creeper | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXV | Parthenocissus quinquefoliaX | Virginia creeper | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
GcXV | Parthenocissus tricuspidataX | Boston ivy | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Pasania edulis (See Lithocarpus edulis)X | | | | | | | |
V | Passiflora spp.X | passion vine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
PX | Patersonia drummondiiX | Drummond's patersonia | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Paulownia kawakamiiX | sapphire dragon tree | Unknown | Moderate | Moderate | Moderate | Unknown | Not App. |
TX | Paulownia tomentosaX | empress tree | Moderate | Moderate | Moderate | Moderate | Unknown | Not App. |
SX | Pavonia lasiopetalaX | Texas rock rose | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Pavonia missionumX | red mallow | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Pavonia praemorsaX | yellow mallow | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SXSuX | Pedilanthus bracteatusX | tall slipper plant | Not App. | Not App. | Low | Low | Low | Low |
SXSuX | Pedilanthus macrocarpusX | slipper plant | Not App. | Not App. | Very Low | Very Low | Low | Low |
PX | Pelargonium cordifoliumX | heartleaf geranium | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Pelargonium crispumX | scented geranium | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Pelargonium domesticumX | Martha Washington pelargonium | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Pelargonium fruticosumX | fern leaf geranium | Moderate | Unknown | Unknown | Moderate | Not App. | Not App. |
PX | Pelargonium ionidiflorumX | violet stork's bill | Moderate | Unknown | Unknown | Moderate | Not App. | Not App. |
GcXPX | Pelargonium peltatumX | ivy geranium | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Pelargonium reniformeX | kidney-leaved pelargonium | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
GcXPX | Pelargonium sidoidesX | South African geranium | Moderate | Low | Low | Low | Not App. | Not App. |
PX | Pelargonium tomentosumX | peppermint-scented geranium | Moderate | Moderate | Low | Moderate | Not App. | Not App. |
PX | Pelargonium x hortorum, cvs.X | garden geranium | Low | Low | Moderate | Moderate | Not App. | Not App. |
PX | Pellaea andromedifoliaX | coffee fern | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Pellaea falcataX | Australian cliff brake | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Pellaea hastataX | rock fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Pellaea mucronataX | bird's foot fern | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Pellaea rotundifoliaX | button fern | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Pellaea viridisX | green cliff brake | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Pennisetum 'Fairy Tails'X | evergreen fountain grass | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
GX | Pennisetum alopecuroides, cvs.X | black pennisetum | Low | Low | Moderate | Low | Unknown | Unknown |
GX | Pennisetum massaicumX | bunny tails | Low | Unknown | Moderate | Low | Unknown | Unknown |
GX | Pennisetum orientaleX | Chinese fountain grass | Moderate | Low | Low | Low | Unknown | Unknown |
GX | Pennisetum purpureumX | elephant grass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Pennisetum setaceumX | fountain grass | Low | Low | Low | Low | Low | Low |
GX | Pennisetum spatheolatumX | slender veldt grass | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GX | Pennisetum x advena (P. setaceum hybrids) X | purple/burgundy fountain grass | Moderate | Low | Low | Low | Moderate | Moderate |
PX | Penstemon garden hybrids X | penstemon (hybrids) | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Penstemon SW native spp., cvs.X | penstemon (SW natives) | Low | Low | Low | Low | Low | Low |
PX | Pentapterygium (See Agapetes)X | | | | | | | |
PX | Pentas lanceolata X | Egyptian star flower | Low | Not App. | Moderate | Unknown | Not App. | Not App. |
PX | Perideridia kelloggiiX | yampah | Moderate | Low | Unknown | Very Low | Unknown | Unknown |
PX | Perilla 'Magilla'X | beefsteak plant | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Peritoma arborea (Isomeris arborea)X | bladderpod | Very Low | Very Low | Very Low | Low | Low | Low |
SX | Perityle incanaX | Guadalupe island rock daisy | Not App. | Unknown | Very Low | Not App. | Unknown | Not App. |
SX | Pernetteya mucronata (See Gaultheria mucronata)X | | | | | | | |
PXSX | Perovskia spp., cvs.X | Russian sage | Low | Low | Low | Moderate | Low | Low |
TX | Persea americanaX | avocado | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
GcX | Persicaria affinisX | knotweed | Moderate | High | Moderate | Unknown | Unknown | Unknown |
GcX | Persicaria capitata (shade in San Diego)X | knotweed | Moderate | High | Moderate | Moderate | Unknown | Unknown |
PX | Persicaria microcephala 'Red Dragon'X | red dragon fleece flower | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Petalostemon purpureum (See Dalea gattingeri)X | | | | | | | |
GcX | Petasites palmatusX | coltsfoot | High | High | Unknown | Not App. | Unknown | Unknown |
V | Petrea volubilisX | queen's wreath | Unknown | Not App. | Moderate | Moderate | Unknown | Unknown |
PX | Petrophytum caespitosumX | rock spirea | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Petrorhagia saxifragaX | tunic flower | Unknown | Low | Unknown | Unknown | Unknown | Unknown |
PX | Phacelia bolanderiX | woodland phacelia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Phacelia californicaX | scorpion flower | Low | Moderate | Unknown | Low | Unknown | Unknown |
BuX | Phaedranassa carmioliX | the queen amaryllis | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
GX | Phalaris spp. X | ribbon grass | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
BuX | Phalocallis coelestis (Cypella plumbea)X | cypella | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Philadelphus 'Belle Etoile'X | Belle Etoile mock orange | Moderate | Moderate | Unknown | Moderate | Unknown | Unknown |
SX | Philadelphus 'Fallbrook'X | Fallbrook mock orange | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Philadelphus 'Galahad'X | Galahad mock orange | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Philadelphus lewisii (P. californicus)X | wild mock orange | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Philadelphus mexicanusX | evergreen mock orange | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Philadelphus microphyllusX | littleleaf mock orange | Low | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Philadelphus x 'Buckley's Quill'X | Buckley's quill mock orange | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Philadelphus x virginalisX | double mock orange | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Philodendron 'Xanadu'X | Xanadu philodendron | Unknown | Unknown | Moderate | Moderate | Not App. | Not App. |
PXSX | Philodendron bipinnatifidum (selloum)X | tree philodendron | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Philodendron x evansiiX | Evan's philodendron | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Philotheca myoporoides (See Eriostemon myoporoides)X | | | | | | | |
SX | Philotheca verrucosaX | fairy wax flower | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Phlebodium aureum (Polypodium aureum)X | rabbit's foot fern | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Phlomis caballeroi (See Phlomis purpurea)X | | | | | | | |
PXSX | Phlomis cashmeriana (See Phlomis spectabilis)X | | | | | | | |
SX | Phlomis creticaX | Cretan phlomis | Low | Low | Low | Low | Unknown | Unknown |
SX | Phlomis fruticosaX | Jerusalem sage | Low | Low | Low | Low | Moderate | Moderate |
SX | Phlomis italicaX | Italian Jerusalem sage | Low | Low | Low | Low | Unknown | Unknown |
SX | Phlomis lanataX | Crete Jerusalem sage | Low | Low | Low | Low | Unknown | Unknown |
SX | Phlomis lyciaX | Turkish Jerusalem sage | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Phlomis purpurea (P. caballeroi)X | purple Jerusalem sage | Low | Low | Low | Low | Unknown | Unknown |
| Phlomis russelianaX | phlomis (russeliana) | Low | Low | Low | Moderate | Unknown | Unknown |
SX | Phlomis samiaX | Greek Jerusalem sage | Low | Unknown | Low | Unknown | Unknown | Unknown |
SX | Phlomis spectabilis (P. cashmeriana)X | Kashmir sage | Low | Low | Low | Low | Unknown | Unknown |
PX | Phlomis tuberosaX | tuberous jerusalem sage | Moderate | Low | Low | Low | Unknown | Unknown |
SX | Phlomis viscosaX | sticky Jerusalem sage | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Phlox spp., cvs. (CA native, non-native spp.)X | phlox | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
GcX | Phlox subulataX | moss pink | Moderate | Moderate | Not App. | Not App. | Unknown | Unknown |
PmXTX | Phoenix canariensisX | Canary Island date palm | Low | Low | Low | Low | Moderate | Moderate |
PmXTX | Phoenix dactyliferaX | date palm | Low | Low | Low | Low | Moderate | Moderate |
PmXTX | Phoenix reclinataX | Senegal date palm | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
PmXSXTX | Phoenix roebeleniiX | pigmy date palm | Low | Not App. | Moderate | Moderate | Not App. | Moderate |
PmXTX | Phoenix rupicolaX | cliff date palm | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Phormium colensoi cvs. (P. cookianum)X | mountain flax | Moderate | Unknown | Moderate | Moderate | Not App. | Not App. |
PX | Phormium hybridsX | flax | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Phormium tenaxX | New Zealand flax | Low | Low | Low | Moderate | Not App. | Not App. |
SX | Photinia glabraX | Japanese photinia | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SXTX | Photinia serratifolia (P. serrulata)X | Chinese photinia | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Photinia x fraseriX | Fraser photinia | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
GX | Phragmites australis X | common reed | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Phygelius spp., hybrids X | cape fuchsia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Phygelius x rectusX | cape fuchsia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
GcX | Phyla nodiflora (Lippia nodiflora)X | cape weed | Low | Low | Low | Low | Not App. | Not App. |
SX | Phylica arboreaX | Island Cape Myrtle | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Phylica plumosaX | Cape Myrtle | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
SX | Phylica pubescensX | featherhead | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
SX | Phyllitis scolopendrium (See Asplenium scolopendrium)X | | | | | | | |
BaXSXTX | Phyllostachys spp.X | bamboo (Phyllostachys) | Low | Low | Moderate | Moderate | Moderate | Moderate |
SX | Physocarpus capitatusX | ninebark | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Physocarpus opulifoliusX | common nine bark | Low | Moderate | Unknown | Moderate | Unknown | Unknown |
PX | Physostegia leptophyllaX | lavender bells | Unknown | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Physostegia virginianaX | obedient plant | Moderate | High | Moderate | Moderate | Unknown | Unknown |
PX | Phyteuma nigrumX | black rampion | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Picea abiesX | Norway spruce | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
TX | Picea engelmanniiX | Engelmann spruce | Not App. | Unknown | Not App. | Not App. | Not App. | Not App. |
TX | Picea glaucaX | Alberta spruce | Moderate | Moderate | Not App. | Not App. | Moderate | Not App. |
TX | Picea marianaX | black spruce | Unknown | Unknown | Unknown | Not App. | Unknown | Not App. |
TX | Picea omorikaX | Serbian spruce | Unknown | Unknown | Unknown | Not App. | Unknown | Not App. |
TX | Picea orientalisX | oriental spruce | Unknown | Unknown | Unknown | Not App. | Unknown | Not App. |
TX | Picea pungensX | Colorado spruce | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
SX | Pieris cvs.X | pieris | Moderate | Moderate | Not App. | Not App. | Unknown | Unknown |
SX | Pieris formosa var. forrestiiX | Chinese pieris | Moderate | Moderate | Not App. | Not App. | Unknown | Unknown |
SX | Pieris japonica (taiwanensis)X | lily-of-the-valley shrub | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
SX | Pimelea ciliata 'Snow Clouds'X | white banjine | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Pimelea ferrugineaX | rice flower | Moderate | Not App. | Moderate | Not App. | Unknown | Unknown |
SX | Pimelea humilis 'Small Fry'X | dwarf rice flower | Moderate | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Pimelea prostrataX | rice flower | Moderate | Not App. | Unknown | Not App. | Unknown | Unknown |
PX | Pinellia ternataX | pinellia | Moderate | Unknown | Moderate | Low | Unknown | Unknown |
PX | Pinellia tripartitaX | voodoo lily | Moderate | Unknown | Moderate | Low | Unknown | Unknown |
TX | Pinus attenuataX | knobcone pine | Very Low | Low | Low | Low | Not App. | Not App. |
TX | Pinus brutiaX | Calabrian pine | Low | Low | Low | Low | Moderate | Moderate |
TX | Pinus brutia ssp. eldaricaX | eldarica pine | Low | Low | Very Low | Low | Moderate | Moderate |
TX | Pinus bungeanaX | lacebark pine | Unknown | Low | Unknown | Unknown | Unknown | Unknown |
TX | Pinus canariensisX | Canary Island pine | Low | Low | Low | Moderate | Moderate | Moderate |
TX | Pinus cembraX | Swiss stone pine | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Pinus contortaX | beach pine | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Pinus coulteriX | Coulter pine | Low | Low | Low | Low | Moderate | Not App. |
TX | Pinus densifloraX | Japanese red pine | Moderate | Moderate | Not App. | Moderate | Not App. | Not App. |
TX | Pinus edulisX | pinyon pine | Low | Low | Very Low | Low | Low | Not App. |
TX | Pinus eldarica (See P. brutia spp. eldarica)X | | | | | | | |
TX | Pinus flexilisX | limber pine | Unknown | Unknown | Not App. | Unknown | Unknown | Unknown |
TX | Pinus halepensisX | Aleppo pine | Low | Low | Low | Low | Moderate | Moderate |
TX | Pinus heldreichiiX | Bosnian pine | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Pinus jeffreyiX | Jeffrey pine | Low | Low | Not App. | Not App. | Not App. | Not App. |
TX | Pinus koraiensisX | Korean pine | Unknown | Not App. | Not App. | Unknown | Unknown | Unknown |
TX | Pinus lambertianaX | sugar pine | Not App. | Low | Not App. | Not App. | Unknown | Unknown |
TX | Pinus leucodermis (See P. heldreichii)X | | | | | | | |
TX | Pinus longaevaX | bristlecone pine | Very Low | Not App. | Not App. | Not App. | Not App. | Not App. |
TX | Pinus monophyllaX | single leaf pinyon pine | Low | Not App. | Very Low | Low | Low | Not App. |
TX | Pinus montezumaeX | Montezuma pine | Low | Low | Low | Low | Not App. | Not App. |
SX | Pinus mugoX | mugo pine | Low | Low | Not App. | Moderate | Moderate | Not App. |
TX | Pinus muricataX | bishop pine | Moderate | Moderate | Low | Not App. | Not App. | Not App. |
TX | Pinus nigraX | Austrian black pine | Moderate | Moderate | Not App. | Moderate | Moderate | Not App. |
TX | Pinus parvifloraX | Japanese white pine | Moderate | Moderate | Not App. | Not App. | Unknown | Not App. |
TX | Pinus patulaX | Jelecote pine | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Pinus pinasterX | cluster pine | Moderate | Moderate | Low | Not App. | Not App. | Not App. |
TX | Pinus pineaX | Italian stone pine | Very Low | Low | Low | Low | Moderate | Moderate |
TX | Pinus ponderosaX | ponderosa pine | Very Low | Low | Not App. | Low | Not App. | Not App. |
TX | Pinus ponderosa var. washoensis (P. washoensis)X | Washoe pine | Unknown | Unknown | Not App. | Not App. | Unknown | Unknown |
TX | Pinus radiataX | Monterey pine | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Pinus roxburghiiX | chir pine | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Pinus sabinianaX | foothill pine | Very Low | Very Low | Very Low | Low | Not App. | Not App. |
TX | Pinus strobusX | eastern white pine | Moderate | Unknown | Not App. | Not App. | Unknown | Not App. |
TX | Pinus sylvestrisX | Scotch pine | Moderate | Moderate | Not App. | Moderate | Not App. | Not App. |
TX | Pinus taedaX | loblolly pine | Unknown | Unknown | Unknown | Unknown | Not App. | Not App. |
TX | Pinus thunbergiiX | Japanese black pine | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Pinus torreyanaX | Torrey pine | Low | Low | Low | Moderate | Not App. | Not App. |
TX | Pinus virginiana 'Wate's Golden'X | Wate's golden pine | Unknown | Unknown | Not App. | Unknown | Unknown | Unknown |
TX | Pinus wallichianaX | Himalayan pine | Moderate | Low | Moderate | Unknown | Unknown | Unknown |
TX | Pinus washoensis (See Pinus ponderosa var. washoensis)X | | | | | | | |
TX | Pinus x attenuradiataX | knobcone-Monterey pine | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
GX | Piptochaetium fimbriatumX | pinyon rice grass | Unknown | Unknown | Very Low | Unknown | Unknown | Unknown |
TX | Pisonia umbelliferaX | map plant | Unknown | Not App. | Moderate | Unknown | Not App. | Not App. |
TX | Pistacia chinensisX | Chinese pistache | Low | Low | Moderate | Moderate | Moderate | Moderate |
SXTX | Pistacia lentiscusX | mastic tree | Very Low | Unknown | Moderate | Moderate | Unknown | Unknown |
SXTX | Pistacia mexicana (P. texensis, texana)X | Texas pistache | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Pistacia vera (edible)X | pistachio | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Pistacia x 'Red Push'X | Red Push Pistache | Unknown | Unknown | Unknown | Moderate | Moderate | Moderate |
TX | Pithecellobium (See Ebenopsis and Havardia)X | | | | | | | |
V | Pithecoctenium crucigerumX | monkey comb | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Pittocaulon praecox (See Senecio praecox)X | | | | | | | |
SX | Pittosporum napaulenseX | golden fragrance | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Pittosporum angustifolium (in trade as phillyraeoides)X | willow pittosporum | Moderate | Moderate | Low | Low | Not App. | Moderate |
SX | Pittosporum brevicalyxX | pittosporum (brevicalyx) | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SXTX | Pittosporum crassifolium X | evergreen pittosporum | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Pittosporum eugenioidesX | tarata | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Pittosporum phillyraeoides (See P. angustifolium)X | | | | | | | |
TX | Pittosporum rhombifoliumX | Queensland pittosporum | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
TX | Pittosporum tenuifolium, cvs.X | tawhiwhi | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SXTX | Pittosporum tobira, cvs.X | mock orange | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Pittosporum undulatumX | Victorian box | Low | Low | Moderate | Moderate | Not App. | Not App. |
TX | Platanus mexicanaX | Mexican sycamore | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Platanus occidentalis 'Glabrata'X | Texas sycamore | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Platanus racemosaX | California sycamore | Moderate | Moderate | Moderate | Moderate | High | High |
TX | Platanus wrightiiX | Arizona sycamore | Moderate | Unknown | Moderate | Moderate | High | High |
TX | Platanus x acerifolia (See Platanus x hispanica)X | | | | | | | |
TX | Platanus x hispanica, cvs.X | London plane | Moderate | Moderate | Moderate | Moderate | High | High |
SX | Platycladus orientalis (Thuja orientalis)X | oriental arborvitae | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Platycodon grandiflorusX | balloon flower | Moderate | High | Moderate | Moderate | Unknown | Unknown |
SX | Plecostachys serpyllifolia (Helichrysum)X | straw flower | Low | Low | Low | Low | Unknown | Not App. |
PX | Plectranthus argentatusX | silver plectranthus | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXPX | Plectranthus ciliatus 'Drege' (shade)X | spur flower | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Plectranthus eckloniiX | large spur flower bush | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PXSuX | Plectranthus ernstiiX | bonsai mint | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
GcXPX | Plectranthus madagascariensis 'Variegated Mintleaf'X | variegated mintleaf | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
GcXPXSuX | Plectranthus neochilusX | lobster flower | Unknown | Unknown | Low | Moderate | Unknown | Unknown |
GcXPX | Plectranthus verticillatusX | Swedish ivy | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
BaXGcXPXSX | Pleioblastus spp.X | dwarf bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GX | Pleuraphis rigida (See Hilaria rigida)X | | | | | | | |
SX | Pluchea sericea X | Coville arrow weed | Unknown | Low | Moderate | Low | Low | Low |
SX | Plumbago auriculata (capensis)X | cape plumbago | Low | Moderate | Moderate | Moderate | Not App. | Moderate |
SX | Plumbago indicaX | rose colored leadwort | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Plumbago scandensX | summer snow | Unknown | Unknown | Unknown | Moderate | Moderate | Moderate |
SXTX | Plumeria spp., cvs.X | frangipani | Not App. | Not App. | Low | Not App. | Not App. | Moderate |
GX | Poa costinianaX | Australian blue grass | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GX | Poa fendleriana (shade)X | mutton grass | Unknown | Unknown | Unknown | Low | Unknown | Unknown |
GX | Poa secunda (shade)X | pine bluegrass | Unknown | Low | Not App. | Low | Unknown | Unknown |
SX | Podocarpus alpinus cvs.X | alpine plum yew | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Podocarpus elongatus X | Breede river yellow-wood | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Podocarpus gracilior (See Afrocarpus gracilior)X | | | | | | | |
TX | Podocarpus henkeliiX | long leaf yellow wood | Moderate | High | Moderate | Moderate | Moderate | Not App. |
TX | Podocarpus latifoliusX | yellow wood | Moderate | Unknown | Moderate | Not App. | Not App. | Not App. |
SX | Podocarpus lawrencei cvs.X | mountain plum pine | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SXTX | Podocarpus macrophyllusX | yew pine | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Podocarpus nagi (See Nageia nagi)X | | | | | | | |
SX | Podocarpus nivalisX | alpine totara | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Podocarpus totaraX | totara | Unknown | Moderate | Moderate | Moderate | Unknown | Unknown |
V | Podranea bryceiX | Queen of Sheba | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
V | Podranea ricasolianaX | pink trumpet vine | Not App. | Moderate | Moderate | Moderate | Not App. | Moderate |
GXGcX | Pogonatherum paniceumX | baby bamboo | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Polemonium spp.X | Jacob's ladder | High | High | Moderate | Moderate | Unknown | Unknown |
BuX | Polianthes tuberosaX | tuberose | Moderate | Moderate | Moderate | Moderate | Low | Low |
PX | Poliomintha longifloraX | Rosemary mint | Low | Low | Low | Low | Low | Low |
SX | Polygala 'Alta Mariposa'X | large butterfly sweet pea shrub | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Polygala chamaebuxusX | shrubby milkwort | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Polygala fruticosa 'Petite Buttterflies'X | Petite Butterfly pea shrub | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Polygala myrtifoliaX | myrtle-leaf milkwort | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Polygala virgataX | purple milkwort | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Polygala x dalmaisianaX | sweet pea shrub | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Polygonatum odoratum (japonicum)X | Soloman's seal | High | Not App. | Moderate | Not App. | Unknown | Unknown |
V | Polygonum aubertii (See Fallopia baldschuanica)X | | | | | | | |
PX | Polypodium (subtropical spp.)X | polypody | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Polypodium californicum X | California polypody | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Polystichum acrostichoidesX | Christmas fern | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Polystichum aculeatumX | hard shield fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Polystichum californicumX | California sword fern | Moderate | Moderate | Moderate | High | Unknown | Unknown |
PX | Polystichum makinoiX | Makinoi's holly fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Polystichum munitumX | western sword fern | Moderate | Moderate | Moderate | High | Unknown | Unknown |
PX | Polystichum polyblepharumX | Japanese lace fern | Moderate | High | High | High | Unknown | Unknown |
PX | Polystichum setiferumX | soft shield fern | Moderate | High | Unknown | Unknown | Unknown | Not App. |
PX | Polystichum setigerumX | Alaska holly fern | Moderate | High | High | High | Unknown | Unknown |
PX | Polystichum setosumX | tassel fern | Moderate | Unknown | High | Unknown | Unknown | Unknown |
PX | Polystichum tsus-simenseX | Korean rock fern | Moderate | High | Unknown | Unknown | Unknown | Unknown |
PX | Polystichum x dyceiX | Dyce's hybrid holly fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Populus 'Mohavensis'X | Mohave poplar | Unknown | Unknown | Unknown | Unknown | Moderate | Moderate |
TX | Populus 'Red Caudina'X | cottonless cottonwood | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Populus alba 'Pyramidalis'X | bolleana poplar | Moderate | Moderate | Moderate | Moderate | High | High |
TX | Populus balsamifera (See P. trichocarpa)X | | | | | | | |
TX | Populus fremontiiX | western cottonwood | Moderate | Moderate | Moderate | Moderate | High | High |
TX | Populus monticolaX | white bark cottonwood | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Populus nigra 'Italica'X | Lombardy poplar | Moderate | Moderate | Moderate | Moderate | High | High |
TX | Populus tremuloidesX | quaking aspen | Moderate | Not App. | Not App. | Not App. | Not App. | Not App. |
TX | Populus trichocarpa (P. balsamifera)X | black cottonwood | High | High | Moderate | Moderate | High | Not App. |
TX | Populus x canadensisX | Carolina poplar | High | High | Unknown | Moderate | High | High |
PXSXSuX | Portulacaria afra, cvs.X | elephant's food | Very Low | Low | Very Low | Low | Low | Low |
PX | Potentilla anserinaX | silverweed | Unknown | Unknown | High | High | Unknown | Unknown |
PX | Potentilla argenteaX | silver cinquefoil | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Potentilla atrosanguineaX | ruby cinquefoil | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Potentilla fruticosa cvs. (See Dasiphora fruticosa)X | | | | | | | |
PX | Potentilla glandulosa (See Drymocallis glandulosa)X | | | | | | | |
PX | Potentilla gracilis X | cinquefoil | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Potentilla megalanthaX | strawberry cinquefoil | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Potentilla neumanniana X | spring cinquefoil | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
GcX | Potentilla vernaX | spring cinquefoil | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
GcXPX | Pratia angulata (See Lobelia angulata)X | | | | | | | |
GcXPX | Pratia pedunculata (See Lobelia pedunculata cvs.)X | | | | | | | |
PX | Primula spp. (CA native) Dodecatheon spp.X | shooting stars | Low | Low | Very Low | Very Low | Unknown | Unknown |
PX | Prosartes hookeri (Disporum hookeri) (shade)X | fairy lantern | Moderate | Unknown | High | Not App. | Unknown | Unknown |
PX | Prosartes smithii (Disporum smithii) (shade)X | fairy lantern | Moderate | Unknown | High | Not App. | Unknown | Unknown |
TX | Prosopis albaX | Argentine mesquite | Not App. | Low | Low | Low | Low | Low |
TX | Prosopis chilensis (See P. glandulosa)X | | | | | | | |
TX | Prosopis glandulosa (P. chilensis)X | Chilean mesquite | Not App. | Low | Low | Low | Low | Low |
TX | Prosopis glandulosa var. torreyanaX | honey mesquite | Not App. | Low | Low | Low | Low | Low |
TX | Prosopis hybrids, cvs.X | prosopis hybrids | Unknown | Unknown | Low | Low | Low | Low |
TX | Prosopis julifloraX | Arizona mesquite | Unknown | Unknown | Low | Low | Low | Low |
TX | Prosopis pubescensX | screwbean mesquite | Not App. | Low | Low | Low | Low | Low |
TX | Prosopis velutinaX | velvet mesquite | Not App. | Low | Low | Low | Low | Low |
SX | Prostanthera denticulataX | mint bush | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Prostanthera lasianthosX | Victorian dogwood | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Prostanthera ovalifoliaX | mint bush | Low | Low | Moderate | Moderate | Unknown | Unknown |
SX | Prostanthera phylicifoliaX | spiked mint bush | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Prostanthera rotundifoliaX | round leaf mint bush | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
PXSX | Protea spp., cvs.X | protea | Moderate | Not App. | Low | Moderate | Not App. | Not App. |
GcXPX | Prunella spp. (CA native, non-native)X | self heal | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Prunus andersoniiX | desert peach | Low | Low | Very Low | Very Low | Unknown | Not App. |
SX | Prunus besseyiX | western sand cherry | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Prunus carolinianaX | Carolina laurel cherry | Low | Low | Moderate | Moderate | Moderate | Moderate |
SX | Prunus fasciculataX | desert almond | Unknown | Unknown | Very Low | Very Low | Very Low | Unknown |
SX | Prunus glandulosaX | flowering almond | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Prunus ilicifoliaX | holly leaf cherry | Low | Low | Very Low | Very Low | Not App. | Not App. |
SXTX | Prunus ilicifolia lyoniiX | Catalina cherry | Low | Low | Low | Low | Not App. | Not App. |
SXTX | Prunus japonicaX | oriental bush cherry | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
SXTX | Prunus laurocerasusX | English laurel | Moderate | Moderate | Moderate | High | Not App. | Not App. |
TX | Prunus lusitanicaX | Portugal laurel | Moderate | Unknown | Moderate | Not App. | Not App. | Not App. |
TX | Prunus mumeX | Japanese apricot | Low | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Prunus sargentiiX | Sargent cherry | Moderate | Unknown | Moderate | Unknown | Unknown | Not App. |
TX | Prunus spp. cherryX | flowering cherry | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
TX | Prunus spp. edible apricotX | apricot | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Prunus spp. edible nectarineX | nectarine | Low | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Prunus spp. edible nectarine (low chill)X | nectarine (low chill) | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Prunus spp. edible peachX | peach | Low | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Prunus spp. edible peach (low chill)X | peach (low chill) | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Prunus spp. edible plumX | plum | Low | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Prunus spp. edible plum (low chill)X | plum (low chill) | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Prunus spp. peach, floweringX | flowering peach | Low | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Prunus spp. plum, floweringX | flowering plum | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Prunus subcordataX | Sierra plum | Unknown | Unknown | Moderate | Not App. | Unknown | Unknown |
SX | Prunus virginianaX | chokecherry | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Pseudobombax ellipticumX | shaving brush tree | Unknown | Not App. | Moderate | Unknown | Unknown | Unknown |
V | Pseudogynoxys chenopodioides (Senecio confusus)X | Mexican flame vine | Not App. | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Pseudolarix kaempferi 'Golden Larch'X | golden larch | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
SXTX | Pseudopanax feroxX | fierce lancewood | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Pseudotsuga macrocarpaX | big cone spruce | Low | Low | Low | Moderate | Not App. | Not App. |
TX | Pseudotsuga menziesiiX | Douglas fir | Low | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Psidium cattleianum (See P. littorale var. longipes)X | | | | | | | |
SXTX | Psidium guajavaX | common guava | Not App. | Not App. | Moderate | Not App. | Not App. | Moderate |
SXTX | Psidium littorale var. longipes (P. cattleianum)X | strawberry guava | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
PXSX | Psilostrophe cooperiX | paper flower | Unknown | Unknown | Very Low | Low | Very Low | Very Low |
PXSX | Psilostrophe tagetinaX | paper flower | Unknown | Unknown | Low | Low | Low | Low |
PX | Psoralea macrostachya (See Hoita macrostachya)X | | | | | | | |
SX | Psoralea pinnataX | scurfy pea shrub | Moderate | Unknown | Low | Moderate | Unknown | Unknown |
SX | Psorothamnus spinosus (Dalea spinosa)X | smoke tree | Not App. | Low | Not App. | Low | Not App. | Very Low |
SX | Ptelea crenulataX | western hop tree | Low | Low | Unknown | Low | Unknown | Unknown |
PX | Pteris spp. (CA native, non-native spp.)X | brake fern | Moderate | Moderate | Moderate | High | Not App. | Not App. |
SX | Pterolobium stellatumX | redwing | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Pulmonaria spp.X | lungwort | Moderate | High | Not App. | Not App. | Unknown | Unknown |
PX | Pulsatilla vulgaris (Anemone pulsatilla)X | Pasque flower | Moderate | Moderate | Not App. | Not App. | Unknown | Unknown |
GcX | Pultenea pedunculata 'Grampians Gold'X | gold matted pea | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Punica granatumX | pomegranate | Low | Low | Low | Low | Moderate | Moderate |
SX | Punica granatum, cvs.X | dwarf pomegranate | Low | Low | Low | Low | Moderate | Moderate |
SX | Purshia glandulosa (See P. tridentata var. glandulosa)X | desert bitterbrush | Low | Unknown | Unknown | Low | Unknown | Unknown |
SX | Purshia mexicana (See P. stansburyana)X | | | | | | | |
SX | Purshia stansburyana (Cowania mexicana, Purshia mexicana)X | cliff rose | Low | Unknown | Very Low | Low | Unknown | Unknown |
SX | Purshia tridentataX | antelope bitterbrush | Low | Unknown | Very Low | Low | Unknown | Unknown |
PX | Puya spp.X | puya | Very Low | Low | Low | Low | Not App. | Unknown |
PX | Pycnanthemum californicumX | mountain mint | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Pycnostachys urticifoliaX | blue witches' hats | Unknown | Moderate | Moderate | Unknown | Unknown | Unknown |
GcXSX | Pyracantha spp., cvs.X | firethorn | Low | Low | Low | Moderate | Moderate | Moderate |
PX | Pyrethropsis hosmariense (Rhodanthemum)X | Moroccan daisy | Low | Moderate | Low | Low | Unknown | Unknown |
PX | Pyrethrum roseum (See Tanacetum coccineum)X | | | | | | | |
V | Pyrostegia venustaX | flame vine | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
PX | Pyrrosia spp.X | felt fern | Low | Not App. | Low | Low | Unknown | Unknown |
TX | Pyrus betulifoliaX | birchleaf pear | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Pyrus calleryana cvs.X | Callery pear | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Pyrus communisX | edible pear | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Pyrus kawakamiiX | evergreen pear | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
BaXSX | Qiongzhuea tumidinoda (now Chimonobambusa tumidissinoda)X | swollen-noded cane bamboo | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Quercus acutissimaX | sawtooth oak | Moderate | Moderate | Unknown | Low | Unknown | Unknown |
TX | Quercus agrifoliaX | coast live oak | Very Low | Very Low | Very Low | Low | Not App. | Moderate |
TX | Quercus albaX | eastern white oak | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Quercus arizonicaX | Arizona white oak | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Quercus berberidifoliaX | California scrub oak | Very Low | Very Low | Very Low | Low | Low | Not App. |
TX | Quercus bicolorX | swamp white oak | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Quercus buckleyiX | Texas red oak | Moderate | Low | Not App. | Unknown | Unknown | Unknown |
TX | Quercus cerrisX | Turkish oak | Moderate | Low | Moderate | Unknown | Unknown | Unknown |
TX | Quercus chrysolepisX | canyon live oak | Very Low | Low | Low | Low | Not App. | Not App. |
TX | Quercus coccineaX | scarlet oak | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Quercus dentataX | Japanese emperor oak | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Quercus douglasiiX | blue oak | Very Low | Very Low | Very Low | Low | Not App. | Not App. |
SXTX | Quercus dumosaX | Nutall's scrub oak | Very Low | Very Low | Very Low | Low | Low | Not App. |
SX | Quercus durataX | leather oak | Very Low | Low | Low | Low | Unknown | Unknown |
TX | Quercus ellipsoidalisX | northern pin oak | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Quercus emoryiX | Emory oak | Low | Unknown | Unknown | Unknown | Not App. | Not App. |
TX | Quercus engelmanniiX | mesa oak | Low | Low | Very Low | Low | Not App. | Not App. |
TX | Quercus fagineaX | Portuguese oak | Unknown | Low | Unknown | Unknown | Unknown | Unknown |
TX | Quercus fusiformisX | escarpment live oak | Unknown | Moderate | Moderate | Unknown | Low | Unknown |
TX | Quercus gambelliiX | Gambell oak | Unknown | Low | Unknown | Low | Low | Not App. |
TX | Quercus garryanaX | Oregon white oak | Low | Low | Low | Not App. | Unknown | Unknown |
TX | Quercus glaucoidesX | Lacey oak | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Quercus gravesiiX | Chisos red oak | Unknown | Low | Unknown | Unknown | Unknown | Unknown |
TX | Quercus ilexX | holly oak | Low | Low | Low | Low | Moderate | Moderate |
TX | Quercus ithaburensisX | oak of Tabor | Unknown | Low | Unknown | Unknown | Unknown | Unknown |
TX | Quercus kelloggiiX | California black oak | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Quercus liaotungensisX | liaotung oak | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Quercus lobataX | valley oak | Low | Low | Moderate | Moderate | Not App. | Not App. |
TX | Quercus macrocarpaX | burr oak | Moderate | Moderate | Moderate | Unknown | Moderate | Unknown |
TX | Quercus muehlenbergiiX | chinquapin oak | Low | Moderate | Unknown | Low | Low | Moderate |
TX | Quercus nuttallii 'MonPowe'X | Charisma Nutall Oak | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Quercus oblongifoliaX | Mexican blue oak | Unknown | Low | Unknown | Unknown | Unknown | Unknown |
TX | Quercus palustrisX | pin oak | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Quercus phellosX | willow oak | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Quercus polymorphaX | Monterrey oak | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Quercus roburX | English oak | Moderate | Moderate | Moderate | Moderate | Unknown | Not App. |
TX | Quercus rubraX | red oak | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Quercus shumardiiX | Shumard red oak | Moderate | Moderate | Unknown | Not App. | Not App. | Not App. |
TX | Quercus suberX | cork oak | Low | Low | Low | Low | Low | Low |
TX | Quercus texanaX | Texas red oak | Low | Unknown | Unknown | Low | Low | Moderate |
TX | Quercus tomentellaX | island oak | Low | Low | Low | Not App. | Not App. | Not App. |
SX | Quercus turbinellaX | shrub live oak | Low | Low | Very Low | Low | Low | Not App. |
TX | Quercus variabilisX | Chinese cork oak | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Quercus virginianaX | southern live oak | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
TX | Quercus wislizeniX | interior live oak | Very Low | Very Low | Very Low | Very Low | Moderate | Not App. |
SX | Quercus x acutidensX | Torrey oak | Unknown | Unknown | Unknown | Low | Unknown | Unknown |
TX | Quercus x HeritageX | Heritage oak | Unknown | Unknown | Unknown | Unknown | Moderate | Moderate |
TX | Quercus x morehusX | Oracle oak | Very Low | Unknown | Unknown | Low | Unknown | Unknown |
TX | Quercus x Regal PrinceX | Regal Prince oak | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Quillaja saponariaX | soapbark tree | Low | Low | Low | Unknown | Unknown | Unknown |
TX | Radermachera sinicaX | China doll | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Ranunculus californicusX | California buttercup | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Ranunculus cortusifoliusX | buttercup | Low | Unknown | Low | Low | Unknown | Unknown |
BuXPX | Ranunculus spp. (summer growing)X | creeping buttercup | Moderate | Moderate | Unknown | Moderate | Moderate | Moderate |
BuX | Ranunculus spp. (winter growing)X | Persian ranunculus | Low | Moderate | Not App. | Very Low | Moderate | Moderate |
PX | Raoulia australisX | golden scabweed | Low | Not App. | Not App. | Not App. | Unknown | Unknown |
PX | Raoulia x 'Greenstone'X | Greenstone Vegetable Sheep | Moderate | Unknown | Not App. | Not App. | Unknown | Unknown |
PX | Ratibida columniferaX | Mexican hat | Moderate | Low | Low | Moderate | Moderate | Not App. |
PmXTX | Ravenea rivularisX | Majesty palm | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Rehmannia elataX | Chinese foxglove | High | High | Moderate | High | Unknown | Unknown |
PX | Reineckia carneaX | reineckia | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Reinwardtia indicaX | yellow flax | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Restio festuciformisX | green grass reed | Unknown | Unknown | Not App. | Moderate | Unknown | Unknown |
PX | Restio quadratusX | square stalk restio | Unknown | Unknown | Not App. | Unknown | Unknown | Unknown |
PX | Restio similisX | restio (similis) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Restio tetraphyllusX | tassel cord rush | High | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Retrophyllum rospigliosiiX | romeron pine | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Rhagodia spinescens (R. deltophylla)X | Australian saltbush | Very Low | Low | Very Low | Low | Unknown | Unknown |
SX | Rhamnus alaternusX | Italian buckthorn | Low | Low | Low | Moderate | Not App. | Not App. |
SX | Rhamnus californica (See Frangula californica)X | | | | | | | |
SX | Rhamnus croceaX | redberry | Low | Low | Very Low | Low | Not App. | Unknown |
SX | Rhamnus ilicifoliaX | hollyleaf redberry | Low | Low | Very Low | Low | Unknown | Unknown |
SX | Rhamnus tomentella (See Frangula californica ssp. tomentella)X | | | | | | | |
TX | Rhaphiolepis 'Majestic Beauty'X | majestic beauty | Low | Low | Moderate | Moderate | Moderate | Moderate |
SX | Rhaphiolepis indica and cvsX | Indian hawthorne | Low | Moderate | Low | Moderate | Moderate | Moderate |
SX | Rhaphiolepis umbellata and cvs.X | Yeddo hawthorne | Low | Low | Low | Moderate | Unknown | Unknown |
PmXSX | Rhapis excelsaX | lady palm | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
PmXSX | Rhapis humilisX | slender lady palm | Unknown | Unknown | Moderate | Moderate | Not App. | Moderate |
PX | Rheum palmatum var. tanguticumX | ornamental rhubarb | Moderate | High | Unknown | Unknown | Unknown | Unknown |
PX | Rhodanthe anthemoides (Helipterum anthemoides)X | chamomile sunray | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Rhodanthemum hosmariense (See Pyrethropsis)X | | | | | | | |
PX | Rohdea japonicaX | rohdea | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
V | Rhodochiton atrosanguineumX | purple bell vine | Moderate | Not App. | Moderate | Not App. | Unknown | Unknown |
PX | Rhodocoma aridaX | rhodocoma (arida) | Low | Unknown | Low | Unknown | Unknown | Unknown |
PX | Rhodocoma capensisX | giant cape restio | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Rhodocoma foliosaX | rhodocoma (foliosa) | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Rhodocoma fruticosaX | rhodocoma (fruticosa) | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Rhodocoma giganteaX | dekriet | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Rhododendron spp. (CA native, non-native spp.)X | azalea, rhododendron | Moderate | Moderate | High | High | Not App. | Not App. |
SX | Rhododendron spp. (CA native, non-native spp.)X | rhododendron | Moderate | Moderate | High | High | Not App. | Not App. |
BuX | Rhodohypoxis spp.X | rose grass | Moderate | Unknown | Low | Moderate | Unknown | Unknown |
BuX | Rhodophiala bifidaX | red argentine amaryllis | Low | Low | Low | Very Low | Unknown | Unknown |
PX | Rhoeo spathacea, cvs. (See Tradescantia spathacea)X | | | | | | | |
V | Rhoicissus capensisX | evergreen grape | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
PmXTX | Rhopalostylis baueriX | Norfolk Island palm | Unknown | Not App. | High | Moderate | Not App. | Not App. |
PmXTX | Rhopalostylis sapidaX | Nikau palm | Unknown | Not App. | High | High | Not App. | Not App. |
GcXSX | Rhus aromatica (Rhus trilobata)X | skunk bush | Low | Low | Low | Low | Unknown | Unknown |
SX | Rhus glabraX | smooth sumac | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Rhus integrifoliaX | lemonade berry | Low | Low | Very Low | Low | Not App. | Not App. |
TX | Rhus lancea (See Searsia lancea)X | | | | | | | |
TX | Rhus lanceolataX | prairie flameleaf sumac | Unknown | Unknown | Unknown | Unknown | Low | Low |
SX | Rhus laurina (See Malosma laurina)X | | | | | | | |
SX | Rhus lentiiX | pink-flowering sumac | Not App. | Unknown | Very Low | Low | Unknown | Unknown |
SX | Rhus microphyllaX | little-leaf sumac | Unknown | Unknown | Very Low | Unknown | Unknown | Unknown |
SX | Rhus ovataX | sugar bush | Low | Low | Very Low | Low | Low | Low |
SX | Rhus trilobata (See Rhus aromatica)X | | | | | | | |
SXTX | Rhus typhina X | staghorn sumac | Low | Low | Low | Unknown | Low | Not App. |
| Rhynchelytrum nerviglume (See Melinis nerviglumis)X | | | | | | | |
SX | Rhynchospora colorata (aquatic)X | Star Rush | Moderate | Unknown | High | Unknown | Unknown | Unknown |
SX | Ribes amarumX | bitter gooseberry | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
SX | Ribes aureumX | golden currant | Low | Low | Low | Low | Unknown | Not App. |
SX | Ribes californicumX | hillside gooseberry | Very Low | Low | Low | Low | Unknown | Unknown |
SX | Ribes cereumX | wax currant | Moderate | Not App. | Not App. | Moderate | Unknown | Unknown |
SX | Ribes divaricatumX | spreading gooseberry | Low | Unknown | Unknown | Low | Unknown | Unknown |
SX | Ribes indecorumX | white flowering currant | Low | Low | Very Low | Low | Unknown | Unknown |
SX | Ribes malvaceumX | chaparral currant | Very Low | Very Low | Very Low | Low | Unknown | Unknown |
SX | Ribes menziesiiX | canyon gooseberry | Very Low | Unknown | Low | Low | Unknown | Unknown |
SX | Ribes nevadenseX | mountain pink currant | Moderate | Not App. | Not App. | Moderate | Unknown | Unknown |
SX | Ribes quercetorumX | yellow gooseberry | Low | Low | Low | Low | Unknown | Unknown |
SX | Ribes roezliiX | Sierra gooseberry | Low | Low | Low | Moderate | Unknown | Unknown |
SX | Ribes rubrum 'Red Lake'X | redlake currant | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Ribes sanguineum, cvs.X | red flowering currant | Low | Low | Low | Moderate | Unknown | Unknown |
SX | Ribes speciosumX | fuchsia flowering gooseberry | Low | Low | Very Low | Moderate | Unknown | Unknown |
SX | Ribes thacherianumX | Santa Cruz Island gooseberry | Not App. | Unknown | Very Low | Low | Unknown | Unknown |
SX | Ribes viburnifolium (shade) X | evergreen currant | Low | Low | Very Low | Moderate | Unknown | Unknown |
TX | Robinia pseudoacaciaX | black locust | Very Low | Low | Low | Low | Moderate | Moderate |
TX | Robinia x ambiguaX | locust | Low | Low | Moderate | Low | Moderate | Moderate |
TX | Robinsonella cordataX | heartleaf robinsonella | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Rodgersia aesculifoliaX | rogersia (aesculifolia) | Moderate | Unknown | Unknown | High | Unknown | Unknown |
PX | Rodgersia pinnataX | rogersia (pinnata) | Moderate | Unknown | Unknown | High | Unknown | Unknown |
SX | Rojasianthe superba X | giant white sunflower tree | Unknown | Unknown | Unknown | Not App. | Unknown | Unknown |
SX | Roldana oaxacana (Senecio christobalensis)X | red leafed velvet senecio | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Roldana petasitis (Senecio petasitis)X | velvet groundsel | Unknown | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSX | Romneya coulteriX | Matilija poppy | Very Low | Very Low | Very Low | Very Low | Low | Low |
PXSX | Romneya trichocalyxX | hairy Matilija poppy | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
V | Rosa 'Cecile Brunner'X | Cecile Brunner rose | Low | Low | Moderate | Moderate | Moderate | Moderate |
V | Rosa banksiaeX | Lady Banks rose | Low | Low | Moderate | Moderate | Moderate | Moderate |
SX | Rosa californicaX | California wild rose | Low | Low | Low | Low | Not App. | Not App. |
SX | Rosa eglanteria (See Rosa rubiginosa)X | | | | | | | |
SX | Rosa hybrids, bushX | rose | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
V | Rosa hybrids, climbing X | climbing roses | Moderate | Moderate | Moderate | Moderate | High | High |
GcX | Rosa hybrids, ground coversX | carpet roses | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Rosa minutifoliaX | Baja California wild rose | Low | Unknown | Very Low | Low | Unknown | Unknown |
SX | Rosa rubiginosa (R. eglanteria)X | sweet briar rose | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Rosa rugosaX | Japanese rose | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Rosa sericea f. pteracanthaX | wingthorn rose | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Rosa woodsii ssp. ultramontanaX | mountain wood rose | Moderate | Moderate | Unknown | Low | Moderate | Unknown |
PX | Roscoea alpinaX | Himalayan ginger | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Roscoea cautleyoidesX | roscoea | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Roscoea purpureaX | roscoea | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXSX | Rosmarinus cvs.X | trailing rosemary | Low | Low | Low | Low | Moderate | Moderate |
SX | Rosmarinus officinalisX | rosemary | Low | Low | Very Low | Low | Moderate | Moderate |
SX | Rostrinucula dependensX | weeping buddleja | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Rotala indica (aquatic)X | tooth cup | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Rubus calycinoidesX | crinkled creeper | Moderate | Moderate | Not App. | Moderate | Unknown | Unknown |
SX | Rubus lineatusX | bramble (lineatus) | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Rubus parviflorusX | thimbleberry | Low | Low | Moderate | Moderate | Unknown | Unknown |
GcX | Rubus rolfeiX | creeping raspberry | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
SX | Rubus rolfei (R. pentalobus, R. calcynioides)X | creeping raspberry | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
SX | Rubus spectabilisX | salmonberry | Moderate | Low | Moderate | Moderate | Unknown | Unknown |
SX | Rubus ursinusX | California blackberry | Low | Low | Low | Moderate | Unknown | Unknown |
PX | Rudbeckia spp., cvs.X | coneflower | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Ruellia 'Little Katie'X | dwarf ruellia | Moderate | Moderate | Moderate | Moderate | Low | Low |
PXSX | Ruellia brittonianaX | Mexican petunia | Moderate | Low | Low | Moderate | Low | Low |
SX | Ruellia californicaX | rama parda | Unknown | Unknown | Very Low | Moderate | Unknown | Low |
SX | Ruellia carolinensisX | Carolina wild petunia | Unknown | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Ruellia elegans 'Ragin Cajun'X | hardy petunia | Unknown | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Ruellia macranthaX | Christmas pride | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
SX | Ruellia peninsularisX | Baja ruellia | Unknown | Unknown | Very Low | Low | Low | Low |
PX | Ruellia squarrosaX | water bluebell | Unknown | Unknown | Unknown | Moderate | Unknown | Low |
PX | Rumex lunariaX | Canary Island sorrel | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Rumex sanguineus ssp. sanguineusX | bloody sorrel | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Rumohra adiantiformisX | leather leaf fern | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Ruscus spp.X | butcher's broom | Low | Low | Low | Low | Unknown | Unknown |
SX | Russelia equisetiformisX | coral fountain | Moderate | Low | Moderate | Moderate | Moderate | Moderate |
SX | Ruta graveolensX | rue | Moderate | Moderate | Low | Moderate | Unknown | Unknown |
PmXSXTX | Sabal spp.X | palmetto | Not App. | Not App. | Moderate | Moderate | Moderate | Moderate |
GX | Saccharum ravennae (Erianthus ravennae)X | plume grass | Unknown | Unknown | Low | Unknown | Moderate | Unknown |
GcXPX | Sagina subulata 'Aurea'X | Scotch moss | Moderate | Moderate | Moderate | High | Not App. | Not App. |
GcXPX | Sagina subulata (Arenaria)X | Irish moss | Moderate | Moderate | Moderate | High | Not App. | Not App. |
TX | Salix babylonicaX | weeping willow | High | High | High | High | High | Unknown |
TX | Salix gooddingiiX | Goodding's black willow | High | High | High | High | High | Unknown |
TX | Salix laevigataX | red willow | High | High | High | High | High | Unknown |
TX | Salix lasiolepisX | arroyo willow | High | High | High | High | High | |
TX | Salix matsudanaX | Peking willow | High | High | High | High | High | Unknown |
SX | Salix spp. (shrubs)X | willow | High | High | High | High | High | Unknown |
SX | Salvia 'Allen Chickering'X | Allen Chickering sage | Low | Low | Very Low | Low | Low | Low |
SX | Salvia 'Aromas'X | Aromas salvia | Low | Low | Very Low | Low | Unknown | Unknown |
GcXSX | Salvia 'Bee's Bliss'X | Bee's Bliss sage | Low | Low | Low | Low | Unknown | Unknown |
PX | Salvia 'Cabrillo Sunrise-Sunset'X | Cabrillo Sunrise-Sunset sage | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PXSX | Salvia 'Costa Rica Blue'X | Costa Rica blue sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXPX | Salvia 'Dara's Choice'X | Sonoma sage | Low | Low | Low | Low | Unknown | Unknown |
PX | Salvia 'Fuji Snow'X | Fuji Snow sage | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PXSX | Salvia 'Gayle Nielson' (also Trident, trademark)X | Gayle Nielson/Trident sage | Unknown | Low | Very Low | Low | Very Low | Low |
PXSX | Salvia 'Karla'X | Karla's sage | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Salvia 'Maraschino'X | maraschino sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Salvia 'May Night' X | May Night sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXPX | Salvia 'Mrs. Beard'X | Mrs. Beard sage | Unknown | Low | Low | Low | Unknown | Unknown |
PX | Salvia 'Mystic Spires'X | Mystic Spires blue sage | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Salvia 'Phyllis Fancy'X | Phyllis Fancy sage | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
SX | Salvia 'Purple Majesty'X | purple majesty sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia 'Waverly'X | Waverly sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Salvia 'Wendy's Wish'X | Wendy's wish sage | Unknown | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Salvia africana-luteaX | golden sage | Low | Moderate | Low | Low | Unknown | Unknown |
SX | Salvia apianaX | white sage | Very Low | Low | Very Low | Low | Low | Low |
PX | Salvia argenteaX | silver sage | Low | Low | Low | Low | Unknown | Unknown |
PX | Salvia azureaX | prairie sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Salvia blepharophyllaX | eyelash-leafed sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Salvia brandegeeiX | Santa Rosa island Sage | Low | Low | Very Low | Low | Unknown | Unknown |
PX | Salvia buchananii, cvs.X | Buchanan's sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Salvia cacaliaefoliaX | Guatemalan blue sage | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Salvia californicaX | Baja California sage | Not App. | Unknown | Very Low | Low | Unknown | Unknown |
SX | Salvia canariensisX | Canary Island Sage | Low | Low | Low | Low | Unknown | Unknown |
SX | Salvia cedrosensisX | Cedros Island Sage | Unknown | Unknown | Very Low | Moderate | Unknown | Unknown |
SX | Salvia chamaedryoidesX | blue sage | Low | Low | Low | Low | Moderate | Moderate |
PX | Salvia chiapensisX | Chiapas sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXPX | Salvia chionophyllaX | Snowflake sage | Low | Unknown | Low | Low | Unknown | Unknown |
SX | Salvia clevelandii, hybridsX | Salvia Cleveland, Alan Chickering, etc. | Low | Low | Very Low | Low | Low | Low |
SX | Salvia coahuilensisX | Coahuila sage | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Salvia coccineaX | Texas sage | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Salvia confertifloraX | red velvet sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Salvia corrugataX | corrugated sage | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Salvia darcyiX | darcy sage | Moderate | Low | Low | Low | Unknown | Unknown |
PX | Salvia discolorX | Andean silver leaf sage | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
SX | Salvia dolomiticaX | Dolomite sage | Moderate | Moderate | Low | Moderate | Unknown | Unknown |
SX | Salvia dorisianaX | grapefruit-scented sage | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia dorriiX | purple sage | Not App. | Moderate | Not App. | Low | Low | Moderate |
PXSX | Salvia elegansX | pineapple sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Salvia farinacea, cvs.X | Mealy cup sage | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Salvia forskaohleiX | indigo woodland sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Salvia fulgensX | Mexican cardinal sage | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia gesneraefloraX | scarlet sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXPX | Salvia glechomifoliaX | ground ivy sage | Moderate | Unknown | Moderate | High | Unknown | Unknown |
PX | Salvia grahamii (See S. microphylla)X | | | | | | | |
PXSX | Salvia greggii, hybridsX | autumn sage | Low | Low | Low | Low | Moderate | Moderate |
PXSX | Salvia guaranitica (now S. coerulea)X | anise-scented sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia involucrataX | roseleaf sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia iodanthaX | Mexican fuchsia sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Salvia karwinskiiX | Karwinski's sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Salvia koyamaeX | maniko | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Salvia lanceolataX | lance leaf sage | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PXSX | Salvia leucantha, cvs.X | Mexican bush sage | Low | Low | Low | Low | Not App. | Moderate |
SX | Salvia leucophylla, cvs.X | purple sage | Low | Low | Very Low | Low | Moderate | Moderate |
PX | Salvia lyrataX | lyre-leaf sage | Unknown | Moderate | Moderate | Unknown | Unknown | Unknown |
PXSX | Salvia macrophyllaX | purple big leaf sage | Unknown | Unknown | Moderate | High | Unknown | Unknown |
SX | Salvia madrensisX | forsythia sage | Moderate | Moderate | Moderate | High | Unknown | Unknown |
SX | Salvia melissodoraX | grape scented sage | Moderate | Moderate | Moderate | Low | Unknown | Unknown |
SX | Salvia mellifera, cvs.X | black/green sage | Low | Low | Very Low | Low | Unknown | Unknown |
SX | Salvia mexicana, cvs.X | Mexican sage | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
SX | Salvia microphylla (S. grahamii)X | cherry/Graham sage | Low | Low | Low | Low | Moderate | Moderate |
PXSX | Salvia muelleriX | royal purple autumn sage | Low | Moderate | Low | Unknown | Unknown | Unknown |
SX | Salvia munziiX | San Miguel Mountain sage | Low | Low | Very Low | Low | Not App. | Not App. |
PX | Salvia nemorosa, cvs.X | meadow sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia officinalis, cvs.X | garden/kitchen sage | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Salvia pachyphyllaX | rose sage | Low | Low | Not App. | Low | Unknown | Unknown |
PX | Salvia patensX | gentian sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Salvia penstemonoidesX | big red sage | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
PXSX | Salvia pratensis haematodesX | meadow sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia puberulaX | tarantula sage | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Salvia pulchella x involucrataX | hybrid rose leaf sage | Moderate | Unknown | Unknown | Moderate | Unknown | Unknown |
PXSX | Salvia reglaX | mountain sage | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Salvia reptansX | W. Texas cobalt sage | Low | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Salvia roemerianaX | cedar sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Salvia sagittataX | arrow leaf sage | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Salvia sclareaX | Clary sage | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Salvia semiatrataX | bicolor sage | Moderate | Moderate | Low | Moderate | Unknown | Unknown |
PX | Salvia sinaloensisX | Sinaloan blue sage | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcXPX | Salvia sonomensis, cvs.X | Sonoma sage | Low | Low | Low | Low | Unknown | Unknown |
GcXPX | Salvia spathacea (shade), cvs.X | hummingbird/pitcher sage | Low | Low | Low | Moderate | Unknown | Unknown |
PXSX | Salvia thymoidesX | blue salvia | Low | Unknown | Low | Moderate | Unknown | Unknown |
PX | Salvia uliginosaX | bog sage | Moderate | Moderate | Moderate | High | Not App. | Not App. |
SX | Salvia uricaX | blue bush sage | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Salvia vaseyiX | wand sage | Unknown | Unknown | Not App. | Not App. | Unknown | Unknown |
PX | Salvia verticillata 'Purple Rain'X | whorled clary | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia wagnerianaX | Wagner's sage | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PXSX | Salvia x jamensis cvs.X | sage (jamensis cvs.) | Low | Low | Low | Moderate | Unknown | Unknown |
PX | Salvia x superba hybrids, cvs.X | sage (superba) | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SXTX | Sambucus spp. (CA native, non-native spp.)X | elderberry | Low | Low | Low | Low | Moderate | Moderate |
PX | Sanguisorba obtusaX | Japanese bottlebrush | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Sanicula crassicaulisX | snakeroot | Unknown | Unknown | Low | Very Low | Unknown | Unknown |
PXSuX | Sansevieria spp. X | mother-in-law's tongue | Not App. | Not App. | Low | Low | Not App. | Moderate |
GcXPXSX | Santolina spp.X | lavender cotton | Low | Low | Low | Low | Low | Low |
PX | Sanvitalia speciosa 'Sunbini'X | creeping zinnia | Unknown | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Sapindus drummondiiX | western soapberry | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
TX | Sapindus saponariaX | soapberry | Unknown | Unknown | Moderate | Low | Unknown | Unknown |
TX | Sapium sebiferum (See Triadica sebifera)X | | | | | | | |
GcXPX | Saponaria ocymoidesX | rock soapwort | Low | Low | Moderate | Moderate | Not App. | Not App. |
PX | Saponaria pumilioX | dwarf soapwort | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Saponaria x lempergiiX | hybrid soapwort | Moderate | Low | Unknown | Unknown | Unknown | Unknown |
SX | Sarcococca confusaX | sweet box | Low | Moderate | Moderate | Unknown | Not App. | Not App. |
GcXSX | Sarcococca hookeriana humilisX | sweet sarcococca | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Sarcococca ruscifoliaX | fragrant sarcococca | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
V | Sarcostemma cynanchoides ssp. hartwegiiX | climbing milkweed | Unknown | Unknown | Low | Low | Unknown | Unknown |
BaXSX | Sasa spp.X | bamboo (Sasa) | Low | Low | Moderate | Moderate | Not App. | Moderate |
BaXGcXSX | Sasaella masamuneana albostriataX | white striped dwarf bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Satureja chandleri (See Clinopodium chandleri)X | | | | | | | |
PX | Satureja douglasii (See Clinopodium douglasii)X | yerba buena | | | | | | |
PX | Satureja mexicanaX | savory | Low | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Satureja mimuloides (See Clinopodium mimuloides)X | | | | | | | |
PX | Saxifraga spp.X | saxifrage | Moderate | Moderate | Moderate | High | Unknown | Unknown |
| Saxifraga spp. (some CA natives, Micranthes spp.)X | | | | | | | |
PX | Scabiosa spp. X | pincushion flower | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
BuX | Scadoxus multiflorus subsp. katherinae (Haemanthus katherinae)X | blood lily | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXPX | Scaevola 'Mauve Clusters'X | fan flower | Low | Low | Moderate | Moderate | Not App. | Not App. |
GcXPX | Scaevola aemulaX | fairy fan | Low | Low | Moderate | Moderate | Not App. | Not App. |
SX | Schefflera arboricolaX | Hawaiian elf schefflera | Not App. | Not App. | Moderate | High | Not App. | Not App. |
SX | Schefflera elegantissima (Dizygotheca),(shade in low desert)X | thread leaf false aralia | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
TX | Schefflera pueckleri (Tupidanthus calyptratus)X | Australian umbrella tree | Not App. | Not App. | Moderate | High | Not App. | Not App. |
SX | Schefflera taiwaniana 'Yuan Shan'X | Yuan Shan hardy schefflera | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Schima wallichii spp. liukiuensisX | schima | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Schinus molleX | California pepper tree | Very Low | Low | Very Low | Low | Moderate | Moderate |
TX | Schinus polygamusX | Peruvian pepper tree | Very Low | Low | Low | Low | Low | Moderate |
TX | Schinus terebinthifoliusX | Brazilian pepper tree | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
GX | Schizachyrium scopariumX | little bluestem | Unknown | Unknown | Unknown | Unknown | Low | Unknown |
V | Schizophragma hydrangeoidesX | Japanese hydrangea vine | Moderate | Unknown | Not App. | Unknown | Unknown | Unknown |
SXTX | Schefflera actinophylla (Brassaia)X | Queensland umbrella tree | Not App. | Not App. | Moderate | Not App. | Not App. | Moderate |
TX | Schotia afra var. angustifoliaX | Karoo Boer bloom | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Schotia latifoliaX | forest Boer bloom | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Sciadopitys verticillataX | Japanese umbrella pine | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
BuX | Scilla hughii (See Scilla peruviana)X | | | | | | | |
BuX | Scilla hyacinthoidesX | hyacynth squill | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Scilla natalensisX | blue squill | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Scilla peruviana (S. hughii)X | giant scilla | Very Low | Very Low | Low | Very Low | Unknown | Unknown |
PXSuX | Scopelogena verruculataX | cliff vygie | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PX | Scrophularia californica (shade)X | California figwort/bee plant | Low | Low | Low | Low | Unknown | Unknown |
SX | Scrophularia macranthaX | red birds in a tree | Unknown | Unknown | Unknown | Low | Unknown | Unknown |
PX | Scutellaria alpinaX | alpine skull cap | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
PX | Scutellaria indica 'Dorota Blue'X | blue skullcap | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Scutellaria ponticaX | Turkish skullcap | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Scutellaria suffrutescensX | pink Texas skullcap | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Scutellaria x 'Violet Cloud'X | violet cloud hybrid skullcap | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Searsia lancea (Rhus lancea)X | African sumac | Low | Low | Low | Low | Moderate | Moderate |
GcXPXSuX | Sedum spp. (some Hylotelephium)X | stone crop | Low | Low | Low | Low | Not App. | Not App. |
PX | Selaginella brauniiX | arborvitae fern | Unknown | Unknown | High | Unknown | Not App. | Not App. |
PX | Selaginella erythropus 'Sanguinea'X | ruby red spikemoss | Unknown | Unknown | High | Unknown | Not App. | Not App. |
PX | Selaginella uncinataX | peacock spikemoss | Unknown | Unknown | High | Unknown | Not App. | Not App. |
PX | Selliera radicansX | swamp weed | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Semiaquilegia ecalcarataX | semiaquilegia | High | Unknown | Moderate | Moderate | Unknown | Unknown |
BaXSXTX | Semiarundinaria fastuosaX | Narihira bamboo | Moderate | Unknown | Moderate | Moderate | Unknown | Moderate |
PXSuX | Sempervivum spp.X | house leek | Low | Low | Low | Low | Unknown | Unknown |
PXSuX | Senecio aizoidesX | large kleinia | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PXSuX | Senecio amaniensis (See Kleinia amaniensis)X | | | | | | | |
PXSuX | Senecio anteuphorbium (See Kleinia anteuphorbium)X | | | | | | | |
PXSuX | Senecio barbertonicusX | succulent bush senecio | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Senecio christobalensis (See Roldana oaxacana)X | | | | | | | |
SX | Senecio cineraria (Jacobaea maritima)X | dusty miller | Low | Low | Low | Low | Moderate | Moderate |
V | Senecio confusus (See Pseudogynoxys chenopodioides)X | | | | | | | |
PXSuX | Senecio cylindricus (S.vitalis) (nomen. unresolved)X | narrow leaf chalksticks | Low | Unknown | Low | Low | Unknown | Unknown |
PXSuX | Senecio decaryiX | Madagascar senecio | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Senecio flaccidus var. douglasiiX | Douglas groundsel | Very Low | Low | Very Low | Low | Not App. | Moderate |
PX | Senecio greyi (See Brachyglottis greyi)X | | | | | | | |
PXSuX | Senecio haworthii (nomen. unresolved)X | woolly senecio | Unknown | Unknown | Very Low | Unknown | Unknown | Unknown |
PXSuX | Senecio jacobseniiX | trailing jade | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
GcXPXSuX | Senecio mandraliscae (Kleinia mandraliscae)X | kleinia | Low | Unknown | Low | Low | Unknown | Unknown |
SXSuX | Senecio praecox (Pittocaulon praecox )X | broomstick tree | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
PXSuX | Senecio repens (See Kleinia repens)X | | | | | | | |
GcXPXSuX | Senecio serpensX | blue chalksticks | Low | Unknown | Low | Low | Unknown | Unknown |
PXSuX | Senecio talinoides, cvs. (nomen. unresolved)X | blue finger | Low | Not App. | Low | Low | Unknown | Unknown |
PX | Senecio viraviraX | dusty miller | Low | Low | Low | Low | Unknown | Unknown |
PXSuX | Senecio vitalis (See S. cylindricus)X | | | | | | | |
SX | Senna armata (Cassia armata)X | spicy senna | Unknown | Unknown | Not App. | Not App. | Very Low | Low |
SX | Senna artemisioides (Cassia artemisioides)X | feathery cassia/senna | Low | Low | Low | Low | Low | Low |
SX | Senna australis (Cassia australis)X | Australian senna/cassia | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Senna bicapsularis (Cassia candolleana)X | New Zealand cassia/senna | Low | Low | Low | Not App. | Not App. | Low |
SX | Senna bifloraX | twin flowered cassia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Senna candolleanaX | quebracho | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Senna corymbosa (Cassia corymbosa)X | Texas flowery senna | Unknown | Not App. | Low | Unknown | Unknown | Unknown |
SX | Senna covesiiX | desert senna | Unknown | Unknown | Very Low | Not App. | Very Low | Very Low |
SX | Senna didymobotrya (Cassia didymobotrya)X | popcorn senna | Unknown | Unknown | Low | Low | Unknown | Unknown |
SX | Senna lindheimeriana (Cassia lindheimeriana)X | Lindheimer's senna/cassia | Low | Unknown | Low | Unknown | Low | Low |
SX | Senna multiglandulosa (Cassia tomentosa)X | woolly senna | Very Low | Not App. | Low | Unknown | Unknown | Unknown |
SX | Senna nemophila (Cassia nemophila)X | desert cassia | Unknown | Low | Low | Low | Low | Low |
SX | Senna odorata (Cassia odorata)X | southern senna | Unknown | Unknown | Low | Low | Unknown | Low |
SX | Senna phyllodinea (Cassia phyllodinea)X | silver leaf cassia/senna | Unknown | Unknown | Low | Low | Low | Low |
SX | Senna polyantha (Cassia goldmanii)X | Goldman's senna/cassia | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Senna purpusiiX | Baja California senna | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
TX | Senna spectabilis (Cassia excelsa)X | senna/cassia (spectabilis/excelsa) | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Senna splendida (Cassia splendida)X | golden wonder | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Senna sturtii (Cassia sturtii)X | Sturt's cassia/senna | Not App. | Not App. | Low | Low | Low | Low |
SX | Senna wislizeni (Cassia wislizeni)X | shrubby senna | Unknown | Unknown | Low | Low | Low | Low |
TX | Sequoia sempervirensX | coast redwood | High | High | High | High | Not App. | Not App. |
TX | Sequoiadendron giganteumX | giant sequoia | Moderate | Moderate | Not App. | Moderate | Not App. | Not App. |
SX | Serissa foetidaX | serissa | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
TX | Sesbania punicea (S. tripetii)X | scarlet wisteria tree | Low | Low | Low | Unknown | Unknown | Unknown |
TX | Sesbania tripetii (See Sesbania punicea)X | | | | | | | |
GX | Sesleria spp. and cvs.X | moor grass | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
GcX | Sesuvium verrucosumX | western sea purslane | Unknown | Unknown | Unknown | Unknown | Not App. | Not App. |
GX | Setaria palmifoliaX | palm grass | High | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Setcreasea pallida (See Tradescantia pallida)X | | | | | | | |
SX | Shepherdia argenteaX | silver buffaloberry | Low | Unknown | Very Low | Very Low | Unknown | Unknown |
BaXGcXSX | Shibataea kumasasaX | Okame-Zaza bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Sidalcea malviflora X | checkerbloom | Moderate | Moderate | Low | Moderate | Unknown | Unknown |
PX | Sidalcea spp.X | false mallow | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Sideritis syriacaX | sideritis | Low | Low | Low | Unknown | Unknown | Unknown |
PX | Silene spp. (CA native, non-native spp.)X | moss pink/campion | Moderate | Moderate | Low | Low | Unknown | Unknown |
SX | Simmondsia chinensisX | jojoba | Very Low | Very Low | Very Low | Very Low | Low | Low |
SX | Sinarundinaria nitida (Fargesia nitida)X | blue fountain bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Sinningia tubifloraX | velvet slipper | Moderate | Moderate | Low | Moderate | Unknown | Unknown |
BaXSX | Sinobambusa tootsik 'Albostriata'X | variegated Chinese temple bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Sinojackia xylocarpaX | Jack tree | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Sisyrinchium angustifoliumX | blue-eyed grass | Low | Unknown | Unknown | Unknown | Not App. | Not App. |
PX | Sisyrinchium bellum, cvs.X | blue-eyed grass | Very Low | Low | Low | Very Low | Not App. | Not App. |
PX | Sisyrinchium californicumX | golden-eyed grass | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Sisyrinchium convolutumX | sisysrinchium (convolutum) | High | Unknown | Unknown | Unknown | Not App. | Not App. |
PX | Sisyrinchium macrocephalumX | sisysrinchium (macrocephalum) | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Sisyrinchium striatumX | yellow eyed grass | Moderate | Moderate | Low | Unknown | Not App. | Not App. |
SX | Skimmia japonicaX | Japanese skimmia | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
SX | Skimmia reevesianaX | Reeves skimmia | Unknown | Unknown | Not App. | Not App. | Not App. | Not App. |
PX | Smilacina racemosa (See Maianthemum racemosum)X | | | | | | | |
PX | Smilacina stellata (See Maianthemum stellatum)X | | | | | | | |
V | Solandra guttataX | chalice vine | Moderate | Not App. | Moderate | Not App. | Unknown | Unknown |
V | Solandra longifloraX | chalice vine | Unknown | Not App. | Moderate | Not App. | Unknown | Unknown |
V | Solandra maximaX | cup-of-gold vine | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Solanum aviculareX | kangaroo apple | Low | Moderate | Moderate | Unknown | Unknown | Unknown |
SXV | Solanum crispumX | Chilean potato tree | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Solanum hindsianumX | mariola | Unknown | Unknown | Very Low | Low | Unknown | Unknown |
V | Solanum laxum (jasminoides)X | potato vine | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
V | Solanum seaforthianumX | Brazilian nightshade | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Solanum umbelliferum, cvs.X | blue witch | Low | Moderate | Very Low | Low | Unknown | Unknown |
PX | Solanum wallaceiX | Wallace's nightshade | Unknown | Unknown | Low | Low | Unknown | Unknown |
V | Solanum wendlandiiX | Costa Rican nightshade | Low | Not App. | Moderate | Not App. | Not App. | Moderate |
SX | Solanum xanti, cvs.X | blue witch | Low | Moderate | Very Low | Low | Not App. | Not App. |
GcXPX | Soleirolia soleirolii (shade)X | baby's tears | High | High | High | High | Not App. | Not App. |
PX | Solidago canadensis X | Canada goldenrod | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Solidago canadensis spp. elongata (See S. elongata)X | | | | | | | |
PX | Solidago confinisX | southern goldenrod | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Solidago elongata (S. canadensis spp. elongata)X | West Coast Canada goldenrod | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Solidago spp., hybridsX | goldenrod | Moderate | Moderate | Moderate | High | Unknown | Unknown |
PX | Solidago velutina californicaX | California goldenrod | Moderate | Low | Low | Moderate | Unknown | Unknown |
GcXSX | Sollya heterophyllaX | Australian bluebell creeper | Low | Low | Low | Low | Not App. | Not App. |
V | Sollya heterophylla f. parvifloraX | vining bluebell | Low | Low | Low | Low | Not App. | Not App. |
SX | Sonchus canariensisX | tree sonchus | Moderate | Unknown | Very Low | Very Low | Unknown | Unknown |
TX | Sophora affinisX | necklace tree | Unknown | Low | Unknown | Unknown | Unknown | Unknown |
TX | Sophora japonica (See Styphnolobium japonicum)X | | | | | | | |
SXTX | Sophora microphyllaX | Kowhai | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SXTX | Sophora secundifloraX | Texas mountain laurel | Low | Low | Low | Low | Low | Low |
SXTX | Sophora tomentosaX | necklace pod | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Sorbaria sorbifoliaX | false spirea | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Sorbus aucupariaX | European mountain ash | Not App. | Moderate | Not App. | Not App. | Moderate | Not App. |
TX | Sorbus hupehensisX | mountain ash | Unknown | Unknown | Not App. | Not App. | Unknown | Not App. |
GX | Sorghastrum nutansX | yellow Indian grass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
BuX | Sparaxis spp.X | Harlequin flower | Very Low | Moderate | Very Low | Very Low | Unknown | Unknown |
SX | Sparmannia africanaX | African linden | Moderate | Not App. | Moderate | Not App. | Not App. | Unknown |
SX | Spartium junceumX | Spanish broom | Very Low | Very Low | Very Low | Very Low | Very Low | Not App. |
SX | Spartocytisus supranubiusX | teide broom | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Spathiphyllum spp. (shade)X | spathiphyllum | Not App. | Not App. | High | Not App. | Not App. | Moderate |
TX | Spathodea campanulataX | African tulip tree | Not App. | Not App. | Moderate | Not App. | Not App. | Not App. |
PX | Sphaeralcea spp. (CA native, non-native spp.)X | desert/globe mallow | Low | Low | Low | Low | Very Low | Very Low |
SX | Sphaeropteris cooperi (Cyathea cooperi)X | Australian tree fern | High | High | High | High | Not App. | Not App. |
SX | Spiraea spp. (CA native, non-native spp.)X | spiraea | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
GX | Sporobolus airoidesX | alkalai sacaton | Low | Very Low | Low | Low | Low | Low |
GX | Sporobolus wrightiiX | big sacaton | Low | Very Low | Very Low | Low | Low | Unknown |
BuX | Sprekelia formosissimaX | Aztec lily | Low | Low | Low | Low | Unknown | Unknown |
PX | Stachys ajugoidesX | rigid woodmint | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Stachys albensX | white hedgenettle | High | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Stachys albotomentosaX | betony | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Stachys bullata (S. californica) (shade)X | hedge nettle | Low | Unknown | Low | Low | Unknown | Unknown |
PX | Stachys byzantinaX | lamb's ears | Low | Low | Moderate | Moderate | Moderate | Not App. |
PX | Stachys chamissonisX | coast woodmint | Unknown | Unknown | Unknown | Moderate | Unknown | Not App. |
PX | Stachys chrysanthaX | yellow stachys | Low | Unknown | Low | Unknown | Unknown | Not App. |
PX | Stachys coccineaX | scarlet hedge nettle | Moderate | Unknown | Unknown | Moderate | Unknown | Not App. |
PX | Stachys lanata, cvs.X | lamb's ears | Low | Unknown | Moderate | Moderate | Unknown | |
PX | Stachys macranthaX | big betony | Moderate | Unknown | Unknown | Moderate | Unknown | Not App. |
PX | Stachys maxima (S. maxima, S. minor may be compact selections of S. officinalis)X | betony | Unknown | Unknown | Unknown | Unknown | Unknown | Not App. |
PX | Stachys minorX | little betony | Unknown | Unknown | Unknown | Unknown | Unknown | Not App. |
PX | Stachys monieri (See S. officinalis subsp. officinalis)X | | | | | | | |
PX | Stachys officinalis subsp. officinalis (S. monieri)X | alpine betony | Moderate | Unknown | Unknown | Unknown | Unknown | Not App. |
PX | Stachys pycnanthaX | pale hedge nettle | Unknown | Unknown | Unknown | Low | Unknown | Not App. |
PX | Stachys thirkeiX | dwarf lamb's ears | Moderate | Unknown | Unknown | Unknown | Unknown | Not App. |
SX | Stachyurus salicifolia 'Mon Emeri'X | Sparkler's willow leaf stachyurus | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GcX | Stemodia tomentosaX | woolly stemodia | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Stenocarpus sinuatusX | firewheel tree | Not App. | Not App. | Moderate | Moderate | Not App. | Not App. |
SXSuX | Stenocereus thurberi (Lemaireocereus)X | organ pipe cactus | Not App. | Not App. | Very Low | Low | Not App. | Very Low |
BuX | Stenomesson miniatum (Urceolina)X | stenomesson | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
BuX | Stenomesson variegatumX | stenomesson | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
V | Stephanotis floribundaX | Madagascar jasmine | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
BuX | Sternbergia luteaX | yellow autumn crocus | Very Low | Very Low | Very Low | Unknown | Unknown | Unknown |
PX | Stevia rebaudiana X | sweetleaf | Not App. | High | Unknown | Unknown | Unknown | Unknown |
TX | Stewartia pseudocamelliaX | Japanese stewartia | Moderate | Not App. | Not App. | Not App. | Not App. | Not App. |
V | Stigmaphyllon ciliatumX | butterfly vine | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
GX | Stipa barbataX | silver feather grass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Stipa calamagrostis (Achnatherum)X | silver spear grass | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Stipa cernua (Nassella cernua)X | nodding needlegrass | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
GX | Stipa comataX | needle and thread grass | Unknown | Very Low | Very Low | Low | Unknown | Unknown |
GX | Stipa hymenoides (Oryzopsis hymenoides)X | Indian rice grass | Very Low | Unknown | Very Low | Unknown | Low | Unknown |
GX | Stipa ichuX | Peruvian feather grass | Low | Very Low | Unknown | Unknown | Unknown | Unknown |
GX | Stipa lepida (Nassella lepida)X | foothill needlegrass | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
GX | Stipa pulchra (Nassella pulchra)X | purple needlegrass | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
GX | Stipa ramosissima (Austrostipa ramosissima)X | pillar of smoke grass | Low | Low | Low | Low | Unknown | Unknown |
GX | Stipa tenuissima (Nassella tenuissima)X | Mexican feather grass | Low | Low | Low | Low | Low | Moderate |
PX | Stokesia laevisX | Stokes' aster | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSuX | Stomatium agninumX | lamb's tongue | Unknown | Unknown | Low | Unknown | Unknown | Unknown |
SX | Stranvaesia davidiana var. davidianaX | Chinese stranvaesia | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Strelitzia nicolai (shade in desert)X | giant bird of paradise | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
SX | Strelitzia reginae (shade in desert)X | bird of paradise | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Strelitzia reginae var. juncea X | narrow-leafed bird of paradise | Moderate | Unknown | Low | Low | Unknown | Unknown |
SX | Streptosolen jamesoniiX | marmalade bush | Moderate | Not App. | Moderate | High | Not App. | Not App. |
PX | Strobilanthes anisophyllus 'Purpurea'X | goldfussa | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Strobilanthes dyerianthusX | Persian shield | Unknown | Not App. | Moderate | Moderate | Unknown | Unknown |
PX | Stromanthe sanguineaX | triostar stromanthe | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Stylidium adnatumX | trigger plant | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Styphnolobium japonicum (Sophora japonica)X | Japanese pagoda tree | Low | Low | Moderate | Moderate | Moderate | Moderate |
TX | Styrax japonicusX | Japanese snowbell | Moderate | Moderate | Not App. | Not App. | Moderate | Not App. |
TX | Styrax obassiaX | fragrant snowbell | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
SX | Styrax redivivus (S. californicus, S. fulvescens)X | snowdrop bush | Low | Low | Low | Low | Moderate | Not App. |
GcXPX | Sutera cordata (Bacopa) X | sutera | Moderate | High | Moderate | Moderate | Unknown | Unknown |
SX | Swainsona galegifoliaX | winter sweet pea | Moderate | Unknown | Low | Low | Unknown | Unknown |
SX | Swainsona greyanaX | hairy Darling pea | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PmXTX | Syagrus romanzoffiana (Arecastrum romanzoffiana)X | queen palm | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Symphoricarpos albus (shade)X | snowberry | Low | Low | Low | Low | Unknown | Unknown |
SX | Symphoricarpos hybrids (shade)X | snowberry | Low | Low | Unknown | Low | Unknown | Unknown |
SX | Symphoricarpos longiflorus (shade)X | desert snowberry | Low | Low | Not App. | Low | Unknown | Unknown |
GcX | Symphoricarpos mollis (shade in San Diego)X | creeping snowberry | Low | Low | Low | Low | Unknown | Not App. |
SX | Symphoricarpos orbiculatus (shade)X | coralberry | Moderate | Low | Unknown | Low | Unknown | Unknown |
SX | Symphoricarpos rotundifolius (shade)X | round leaf snowberry | Low | Low | Not App. | Low | Unknown | Unknown |
PX | Symphyotrichum ascendens (Aster ascendens)X | western aster | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
PX | Symphotrichum chilense (Aster chilense)X | pacific aster | Moderate | Low | Low | Moderate | Unknown | Unknown |
PX | Symphotrichum praealtum (Aster praealtum)X | Rodney's aster | Unknown | Unknown | Unknown | Moderate | Moderate | Unknown |
PX | Symphyandra spp.X | ring bellflower | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Symphytum azureum (shade)X | comfrey | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Symphytum rubrum (shade)X | comfrey | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SX | Synadenium grantii 'Rubra'X | African milk bush | Not App. | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Syringa hybrids (incl. Descanso hybrids)X | lilac | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
SX | Syringa meyeri 'Palibin'X | dwarf Korean lilac | Moderate | Moderate | Not App. | Unknown | Unknown | Unknown |
SX | Syringa pubescens ssp. patula cvs.X | Korean lilac | Moderate | Moderate | Not App. | Moderate | Unknown | Not App. |
SX | Syringa reticulata 'Ivory Silk'X | ivory silk lilac | Moderate | Moderate | Not App. | Unknown | Unknown | Not App. |
SX | Syringa vulgarisX | lilac | Low | Moderate | Not App. | Moderate | Moderate | Not App. |
SX | Syringa x chinensisX | Chinese lilac | Moderate | Moderate | Not App. | Moderate | Unknown | Not App. |
SX | Syringa x hyacinthifloraX | Canadian lilac | Moderate | Moderate | Not App. | Moderate | Unknown | Not App. |
SX | Syringa x laciniataX | cutleaf lilac | Moderate | Low | Not App. | Moderate | Unknown | Not App. |
SX | Syringa x persicaX | Persian lilac | Low | Low | Not App. | Moderate | Moderate | Not App. |
SX | Syringa x prestoniaeX | Preston lilac | Unknown | Unknown | Not App. | Unknown | Unknown | Not App. |
TX | Syzygium australeX | creek lilly pilly | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Syzygium borbonicum (S. paniculatum) australe?X | Australian brush cherry | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Syzygium jambosX | rose apple | Not App. | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Syzygium paniculatum (See S. borbonicum)X | | | | | | | |
TX | Syzygium smithii (Acmena smithii)X | narrow leaf lilly pilly | Not App. | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Tabebuia spp. (See Handroanthus )X | | | | | | | |
SX | Tabernaemontana divaricata 'Flore Pleno'X | pinwheel flower | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PXSX | Tagetes lemmoniiX | mountain marigold | Low | Low | Low | Low | Moderate | Moderate |
PXSX | Tagetes lucidaX | Mexican tarragon | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Tagetes nelsoniiX | citrus scented marigold | Unknown | Moderate | Low | Unknown | Unknown | Unknown |
PX | Talbotia elegansX | false dracaena | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Talinum calycinumX | fame flower | Low | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Talinum paniculatumX | Jewels of Opar | Unknown | Unknown | Low | Moderate | Unknown | Unknown |
TX | Tamarix aphylla X | salt cedar | Very Low | Very Low | Low | Low | Very Low | Very Low |
SX | Tamarix pentaphyllaX | tamarisk | Very Low | Very Low | Low | Low | Very Low | Very Low |
PX | Tanacetum bipinnatum (T. camphoratum)X | dune tansy | Unknown | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Tanacetum camphoratum (See T. bipinnatum)X | camphor dune tansy | Low | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Tanacetum coccineum (Pyrethrum roseum)X | painted daisy | Moderate | Not App. | Low | Low | Unknown | Unknown |
PX | Tanacetum densumX | partridge feather | Low | Unknown | Low | Unknown | Unknown | Unknown |
PX | Tanacetum haradjaniiX | tansy | Low | Low | Low | Unknown | Unknown | Unknown |
PX | Tanacetum herderi (See Hippolytia herderi)X | | | | | | | |
PX | Tanacetum niveumX | silver tansy | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Tanacetum parthenium (Chrysanthemum parthenium)X | feverfew | Low | Low | Moderate | Moderate | Unknown | Unknown |
PX | Tanacetum vulgareX | tansy | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
TX | Taxodium ascendensX | pond cypress | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Taxodium distichum X | bald cypress | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Taxodium mucronatumX | Montezuma cypress | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
TX | Taxus 'Meyeri'X | Meyer's Yew | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SXTX | Taxus baccataX | English yew | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
SXTX | Taxus baccata 'Fastigiata'X | Irish yew | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
TX | Taxus cuspidataX | Japanese yew | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
TX | Taxus x media cvs.X | yew (media cvs.) | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Tecoma 'Crimson Flare'X | yellow bells | Low | Not App. | Low | Low | Moderate | Moderate |
SX | Tecoma 'Orange Jubilee' (See Tecoma fulva ssp. guarume)X | | | | | | | |
SX | Tecoma 'Sunrise'X | Sunrise tecoma | Low | Unknown | Low | Low | Moderate | Moderate |
SX | Tecoma fulva spp. guarume (T. 'Orange Jubilee')X | Orange Jubilee tecoma | Moderate | Moderate | Low | Low | Moderate | Moderate |
SXTX | Tecoma garrochaX | Argentine tecoma | Low | Unknown | Low | Unknown | Unknown | Unknown |
SXTX | Tecoma stansX | yellow bells | Low | Not App. | Low | Low | Moderate | Moderate |
SX | Tecoma x alata 'Flaming Belles'X | Flaming Bells | Low | Unknown | Low | Low | Unknown | Unknown |
SX | Tecoma x smithiiX | orange bells | Unknown | Unknown | Moderate | Low | Unknown | Unknown |
V | Tecomanthe speciosaX | tecomanthe | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SXV | Tecomaria capensisX | cape honeysuckle | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Tellima grandifloraX | fringe cups | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Telopea speciosissimaX | waratah | Moderate | Not App. | Moderate | Not App. | Unknown | Unknown |
SX | Tephrosia grandifloraX | hoary pea | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Ternstroemia gymnantheraX | Japanese ternstroemia | Moderate | Moderate | Moderate | Moderate | Unknown | Not App. |
PX | Tetraneuris acaulis (Hymenoxys acaulis)X | stemless four-nerve daisy | Low | Unknown | Low | Low | Low | Low |
PX | Tetraneuris grandiflora X | old man of the mountain | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Tetraneuris scaposaX | four-nerve daisy | Low | Unknown | Low | Unknown | Low | Unknown |
SX | Tetrapanax papyriferaX | rice paper plant | Low | Moderate | Moderate | Low | Unknown | Unknown |
PX | Tetratheca thymifoliaX | thyme pink bells | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Teucrium betonicumX | Madeira germander | Low | Unknown | Unknown | Moderate | Unknown | Unknown |
GcXPXSX | Teucrium chamaedrysX | germander | Low | Low | Low | Low | Moderate | Moderate |
GcXPX | Teucrium cossoniiX | Majorcan germander | Very Low | Low | Low | Low | Unknown | Unknown |
SX | Teucrium flavumX | yellow germander | Low | Low | Unknown | Low | Unknown | Unknown |
SX | Teucrium fruticansX | bush germander | Low | Low | Low | Low | Moderate | Moderate |
PX | Teucrium hircanicumX | germander (hircanicum) | Low | Low | Low | Moderate | Unknown | Unknown |
PX | Teucrium marumX | cat thyme | Low | Low | Low | Low | Unknown | Unknown |
PX | Teucrium scorodoniaX | wood sage/germander | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Teucrium x lucidrys (nomen. unresolved)X | dwarf germander | Unknown | Low | Low | Moderate | Unknown | Unknown |
PX | Thalictrum alpinumX | alpine meadow rue | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Thalictrum aquilegiifoliumX | purple meadow rue | High | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Thalictrum coreanumX | meadow rue (coreanum) | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Thalictrum delavayi (T. dipterocarpum)X | lavender shower | High | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Thalictrum dipterocarpum (See T. delavayi)X | | | | | | | |
PX | Thalictrum fendleri var. polycarpumX | meadow rue | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Thalictrum flavum spp. glaucumX | meadow rue (flavum) | High | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Thalictrum rochebrunnianum (nomen. unresolved)X | lavender mist | High | Unknown | Moderate | Unknown | Unknown | Unknown |
BaXSX | Thamnocalamus spathaceus (See Fargesia spathacea)X | | | | | | | |
BaXSX | Thamnocalamus spathiflorus (aristatus)X | thamnocalamus | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
BaXSX | Thamnocalamus tessellatusX | Bergamboes bamboo | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Thamnochortus cinereusX | silver reed | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Thamnochortus insignisX | thatching reed | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Thamnochortus rigidusX | thamnochortus | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Thelypteris decursive-pinnataX | Japanese beech fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Thelypteris normalisX | southern wood fern | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Thelypteris puberulaX | downy wood fern | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
V | Thenardia floribundaX | petatillo | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Thermopsis montanaX | golden banner | Moderate | Unknown | Unknown | Low | Unknown | Unknown |
SXTX | Thevetia peruvianaX | yellow oleander | Not App. | Not App. | Low | Moderate | Not App. | Moderate |
SXTX | Thevetia thevetioides (Cascabela thevetioides)X | giant thevetia | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
SX | Thomasia solanacea X | solanum-like thomasia | Low | Unknown | Low | Unknown | Unknown | Unknown |
TX | Thuja koraiensisX | Korean arbovitae | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Thuja occidentalisX | American arborvitae | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Thuja orientalis (See Platycladus orientalis)X | | | | | | | |
TX | Thuja plicataX | western red cedar | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Thujopsis dolabrata 'Nana'X | false hiba cedar | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
V | Thunbergia alataX | Black-eyed Susan | Moderate | Not App. | Moderate | Moderate | Moderate | Moderate |
PX | Thunbergia battiscombeiX | thunbergia (battiscombei) | Moderate | Unknown | Moderate | Moderate | Moderate | Moderate |
SX | Thunbergia erectaX | King's mantle | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
V | Thunbergia grandifloraX | sky flower | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
V | Thunbergia gregoriiX | orange clock vine | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
V | Thunbergia mysorensisX | thunbergia (mysorensis) | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
PX | Thymophylla acerosa (Dyssodia acerosa)X | shrubby dogweed | Unknown | Unknown | Unknown | Unknown | Low | Low |
PX | Thymophylla pentachaeta (Dyssodia pentachaeta)X | golden fleece | Unknown | Unknown | Unknown | Unknown | Low | Low |
GcXPX | Thymus praecox X | mother-of-thyme | Low | Low | Low | Moderate | Unknown | Unknown |
GcXPX | Thymus spp., cvs.X | thyme | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
GX | Thysanolaena maximaX | tiger grass | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Thysanotus multiflorusX | fringe lily | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Tiarella spp., cvs. (CA native, non-native)X | foam flower | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Tiarella wherryiX | sugar scoop | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
SX | Tibouchina heteromallaX | glory bush | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
SX | Tibouchina urvilleana (semidecandra)X | princess flower | Moderate | Not App. | Moderate | Moderate | Not App. | Unknown |
BuX | Tigridia pavoniaX | Mexican shell flower | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Tilia americanaX | American linden | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
TX | Tilia cordataX | little leaf linden | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
TX | Tilia tomentosaX | silver linden | Low | Unknown | Unknown | Not App. | Unknown | Unknown |
TX | Tipuana tipu X | tipu tree | Moderate | Not App. | Low | Moderate | Not App. | Moderate |
PX | Todea barbaraX | crepe fern | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
TX | Toona sinensis (Cedrela sinensis)X | Chinese toon | Low | Moderate | Low | Low | Unknown | Unknown |
TX | Torreya californica X | California nutmeg | Low | Moderate | Moderate | Moderate | Unknown | Unknown |
BuX | Toxicoscordion fremontii (Zygadenus fremontii)X | star lily | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PX | Trachelium caeruleumX | throatwart | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
GcXSXV | Trachelospermum asiaticumX | Asian star jasmine | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
GcXSXV | Trachelospermum jasminoidesX | star jasmine | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PmXTX | Trachycarpus fortuneiX | windmill palm | Low | Moderate | Moderate | Low | Moderate | Moderate |
PmXTX | Trachycarpus martianusX | Khasia Hills fan palm | Unknown | Unknown | High | Unknown | Unknown | Unknown |
PmXTX | Trachycarpus princepsX | stone gate palm | Unknown | Unknown | High | Unknown | Unknown | Unknown |
PmXTX | Trachycarpus takilX | Kumaon palm | Unknown | Not App. | High | Moderate | Not App. | Moderate |
PmXTX | Trachycarpus wagnerianusX | dwarf Chusan palm | Moderate | Unknown | High | Unknown | Unknown | Unknown |
PX | Tradescantia fluminensis (shade)X | wandering Jew | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
PX | Tradescantia occidentalisX | western spiderwort | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Tradescantia ohiensis, cvs. (T. virginiana)X | spiderwort | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Tradescantia pallida (Setcreasea pallida)X | spiderwort | Moderate | Moderate | Moderate | Moderate | High | High |
PX | Tradescantia spathacea (Rhoeo spathacea)X | Moses-in-the-cradle | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
PX | Tradescantia virginiana, hybrids (See Tradescantia ohiensis)X | | | | | | | |
TX | Trevesia palmata 'Micholitzii'X | snowflake tree | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
TX | Triadica sebifera (Sapium sebiferum)X | Chinese tallow tree | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Trichocereus spp. (See Echinopsis spp.)X | | | | | | | |
SXSuX | Trichodesma scottiiX | Socotran borage | Unknown | Unknown | Moderate | Not App. | Unknown | Unknown |
PXSX | Trichostema lanatum X | woolly blue curls | Very Low | Very Low | Very Low | Low | Not App. | Not App. |
SX | Trichostema parishii X | mountain blue curls | Very Low | Very Low | Very Low | Low | Not App. | Not App. |
PX | Tricyrtis formosanaX | toad lily | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
PX | Tricyrtis hirtaX | toad lily | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Tricyrtis hybridsX | toad lily hybrids | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
GcX | Trifolium fragiferum O'Connor (landscape use)X | O'Connor's legume | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
GcX | Trifolium fragiferum O'Connor (revegetation use)X | O'Conner's legume | Low | Low | Low | Low | Not App. | Not App. |
GcX | Trifolium repensX | white clover | Moderate | Not App. | High | High | Unknown | Unknown |
PX | Trifolium wormskioldiiX | springbank clover | Unknown | Unknown | Unknown | Moderate | Unknown | Unknown |
PX | Trillium chloropetalum X | wake robin | Moderate | Unknown | Not App. | Very Low | Unknown | Unknown |
TX | Tristania conferta (See Lophostemon confertus) X | | | | | | | |
TX | Tristania laurina (See Tristaniopsis laurina) X | | | | | | | |
TX | Tristaniopsis laurinaX | little leaf myrtle | Moderate | Not App. | Moderate | Moderate | Not App. | Not App. |
BuX | Triteleia hyacinthinaX | white brodiaea | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
BuX | Triteleia laxaX | Ithuriel's spear | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
BuX | Triteleia peduncularisX | long-rayed brodiaea | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
PmXTX | Trithrinax acanthocomaX | spiny fiber palm | Low | Unknown | Moderate | Unknown | Unknown | Unknown |
BuX | Tritonia spp.X | tritonia | Low | Unknown | Very Low | Very Low | Unknown | Unknown |
SX | Trixis californicaX | trixis | Unknown | Unknown | Very Low | Low | Low | Low |
TX | Trochodendron aralioidesX | Taiwanese parasol tree | Moderate | Unknown | Unknown | Not App. | Unknown | Unknown |
PX | Trollius spp.X | globeflower | High | High | Moderate | Moderate | Unknown | Unknown |
TX | Tsuga canadensisX | Canadian hemlock | Moderate | Not App. | Not App. | Not App. | Not App. | Not App. |
PX | Tulbaghia fragransX | sweet garlic | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Tulbaghia natalensis 'Pink Form'X | sweet wild garlic | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Tulbaghia violaceaX | society garlic | Low | Low | Low | Moderate | Moderate | Moderate |
SX | Tupidanthus calyptratus (See Schefflera pueckleri)X | | | | | | | |
PX | Tweedia coerulea (See Oxypetalum coeruleum)X | | | | | | | |
SX | Ugni molinaeX | Chilean guava | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
TX | Ulmus 'Frontier'X | Frontier elm | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Ulmus 'New Horizon'X | New Horizon elm | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Ulmus 'Triumph'X | Triumph elm | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Ulmus americanaX | American elm | Moderate | Moderate | Moderate | Moderate | Unknown | Not App. |
TX | Ulmus crassifoliaX | cedar elm | Unknown | Unknown | Moderate | Unknown | Moderate | Unknown |
TX | Ulmus glabra X | Scotch elm | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Ulmus parvifoliaX | Chinese evergreen elm | Low | Moderate | Moderate | Low | Moderate | Moderate |
TX | Ulmus propinqua 'Emerald Sunshine'X | Emerald Sunshine elm | Low | Unknown | Unknown | Unknown | Unknown | Unknown |
TX | Ulmus pumilaX | Siberian elm | Low | Low | Not App. | Low | Moderate | Moderate |
TX | Ulmus wilsoniana 'Prospector'X | Prospector elm | Low | Low | Unknown | Unknown | Unknown | Unknown |
TX | Umbellularia californicaX | California bay | Moderate | Moderate | Low | Moderate | Not App. | Not App. |
SX | Uncarina grandidieriX | succulent sesame | Not App. | Unknown | Low | Moderate | Unknown | Unknown |
PX | Uncinia uncinataX | red New Zealand sedge | Moderate | Unknown | Moderate | Moderate | Unknown | Unknown |
SXTX | Ungnadia speciosaX | Mexican buckeye | Unknown | Low | Low | Unknown | Low | Low |
BuX | Urceolina urceolataX | urn flower | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
BuX | Urginea maritimaX | sea squill | Low | Low | Very Low | Very Low | Not App. | Not App. |
SX | Vaccinium hybrids, cvs. (CA native, non-native)X | southern high bush blueberry | Moderate | High | Moderate | Moderate | Not App. | Not App. |
SX | Vaccinium moupinenseX | Himalayan blueberry | Moderate | Unknown | Unknown | Unknown | Not App. | Not App. |
SX | Vaccinium ovatumX | evergreen huckleberry | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Vaccinium parvifoliumX | red huckleberry | Moderate | Moderate | Not App. | Not App. | Not App. | Not App. |
SX | Vaccinium vitis-idaeaX | foxberry | Moderate | Unknown | Not App. | Not App. | Not App. | Not App. |
TX | Vachellia farnesiana (Acacia farnesiana)X | sweet acacia | Very Low | Low | Low | Very Low | Not App. | Low |
TX | Vachellia farnesiana var. farnesiana (Acacia farnesiana farnesiana)X | desert sweet acacia | Not App. | Not App. | Very Low | Very Low | Not App. | Low |
PX | Valeriana officinalisX | garden valerian | Unknown | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Vallesia glabraX | pearl berry | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
GcXPX | Vancouveria spp. (shade)X | inside-out flower | Moderate | Not App. | Not App. | Low | Unknown | Unknown |
SX | Vauquelinia californicaX | Arizona rosewood | Low | Low | Very Low | Unknown | Low | Low |
SX | Vauquelinia corymbosa var. heterodonX | narrow leaf rosewood | Unknown | Unknown | Low | Not App. | Low | Low |
BuX | Veltheimia bracteataX | forest lily | Moderate | Unknown | Low | Very Low | Unknown | Unknown |
BuX | Veltheimia capensisX | sand lily | Low | Unknown | Low | Very Low | Unknown | Unknown |
PX | Venegasia carpesioidesX | canyon sunflower | Unknown | Unknown | Low | Low | Unknown | Unknown |
PX | Verbascum bombyciferumX | silver mullein | Low | Low | Moderate | Low | Unknown | Unknown |
PX | Verbascum chaixii 'Album'X | nettle-leaved mullein | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Verbascum phoeniceumX | purple mullein | Low | Low | Low | Low | Unknown | Unknown |
PX | Verbascum undulatumX | wavy-leafed mullein | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
PX | Verbena bonariensis X | verbena (bonariensis) | Very Low | Low | Low | Low | Moderate | Unknown |
PX | Verbena gooddingii (Glandularia gooddingii)X | Goodding verbena | Low | Low | Very Low | Low | Low | Low |
PX | Verbena hybridsX | garden verbena | Low | Low | Moderate | Moderate | Moderate | Moderate |
PX | Verbena lasiostachysX | robust verbena | Low | Low | Unknown | Low | Unknown | Unknown |
PX | Verbena lilacina, cvs. (See Glandularia lilacina)X | | | | | | | |
GcXPX | Verbena peruvianaX | Peruvian verbena | Low | Low | Low | Low | Moderate | Moderate |
GcXPX | Verbena rigidaX | vervain | Low | Moderate | Low | Low | Moderate | Moderate |
GcXPX | Verbena strictaX | hoary vervain | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Verbena Tapien hybridsX | Tapien verbena | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
GcXPX | Verbena tenera (pulchella)X | rock verbena | Low | Unknown | Low | Moderate | Moderate | Moderate |
GcXPX | Verbena tenuisectaX | moss verbena | Low | Low | Low | Low | Moderate | Moderate |
GcXPX | Veronica repensX | speedwell | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
PX | Veronica spp.X | veronica | Moderate | Moderate | Moderate | Not App. | Not App. | Moderate |
PX | Veronicastrum virginicumX | blackroot | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Verticordia plumosa 'Pink Lace'X | featherflower | Low | Unknown | Low | Unknown | Unknown | Unknown |
GX | Vetiveria zizanioides (See Chrysopogon zizanioides)X | | | | | | | |
SX | Viburnum 'Anne Russell'X | Anne Russell viburnum | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum 'Mohawk'X | Mohawk viburnum | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum awabukiX | awabuki viburnum | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Viburnum carlcephalumX | fragrant snowball | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Viburnum carlesiiX | Korean spice viburnum | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum carlesii cvs.X | 'Cayuga,' 'Chesapeake,' 'Eskimo' | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum cassinoidesX | witherod viburnum | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum davidiiX | David viburnum | Moderate | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Viburnum dentatumX | arrowwood | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum dilatatumX | linden viburnum | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum japonicumX | Japanese viburnum | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Viburnum lantanaX | wayfaring tree | Moderate | Moderate | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum macrocephalumX | Chinese snowball | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum nudum 'Winterthur'X | smooth witherod | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum odoratissimumX | sweet viburnum | Low | Moderate | Moderate | Unknown | Unknown | Unknown |
SX | Viburnum opulusX | European cranberry bush | Low | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Viburnum plicatumX | Japanese snowball/doublefile | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
SX | Viburnum rhytidophyllumX | leatherleaf viburnum | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Viburnum sargentiiX | sargent viburnum | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum setigerumX | tea viburnum | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Viburnum suspensumX | sandanqua viburnum | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Viburnum tinusX | laurustinus | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
SX | Viburnum x bodnantenseX | Bodnant viburnum | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum x burkwoodiiX | Burkwood viburnum | Low | Moderate | Moderate | Unknown | Unknown | Not App. |
SX | Viburnum x juddiiX | Judd viburnum | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum x pragenseX | Prague viburnum | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
SX | Viburnum x rhytidophylloidesX | viburnum (rhytidophylloides) | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
PX | Vicia giganteaX | giant vetch | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Vigna caracallaX | snail vine | Moderate | Not App. | Moderate | Moderate | Not App. | Moderate |
SX | Viguiera deltoidea (See Bahiopsis laciniata)X | | | | | | | |
SX | Viguiera laciniata (See Bahiopsis laciniata)X | | | | | | | |
SX | Viguiera lanataX | woolly-leaf sunflower | Low | Low | Very Low | Low | Unknown | Unknown |
SX | Viguiera parishiiX | desert goldeneye | Low | Low | Very Low | Low | Low | Low |
TX | Villebrunea pedunculataX | villebrunea | Unknown | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXPX | Vinca majorX | periwinkle | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
GcXPX | Vinca minorX | periwinkle | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Viola aduncaX | western dog violet | Moderate | Not App. | Moderate | Moderate | Unknown | Unknown |
PX | Viola corsicaX | Corsican violet | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXPX | Viola hederaceaX | Australian violet | Moderate | Moderate | Moderate | High | Unknown | Unknown |
PX | Viola japonicaX | violet (japonica) | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
GcXPX | Viola labradoricaX | Labrador violet | Moderate | Moderate | Moderate | High | Unknown | Unknown |
GcXPX | Viola odorataX | sweet violet | Moderate | Moderate | Moderate | High | Unknown | Unknown |
PX | Viola sempervirensX | redwood violet | Low | Unknown | Not App. | Moderate | Unknown | Unknown |
TX | Vitex agnus-castusX | chaste tree | Low | Low | Low | Low | Low | Low |
SX | Vitex negundo 'Heterophylla'X | cut-leaf chaste tree | Moderate | Unknown | Unknown | Unknown | Unknown | Moderate |
SX | Vitex rotundifoliaX | beach vitex | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
SX | Vitex trifolia 'Purpurea'X | Arabian lilac | Moderate | Unknown | Low | Unknown | Unknown | Unknown |
V | Vitis 'Roger's Red'X | Roger's Red grape | Low | Low | Low | Low | Moderate | Unknown |
V | Vitis amurensisX | amur river grape | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Vitis californicaX | California wild grape | Low | Very Low | Low | Low | Moderate | Moderate |
V | Vitis coignetiaeX | crimson glory vine | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Vitis davidiiX | spiny grape | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
V | Vitis girdianaX | desert grape | Low | Low | Low | Low | Moderate | Moderate |
V | Vitis labruscaX | American grape | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
V | Vitis viniferaX | European grape | Low | Moderate | Moderate | Moderate | Moderate | Moderate |
PX | Wachendorfia thyrsifloraX | red root | High | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXPX | Wahlenbergia congestaX | white harebell | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
GcXPX | Wahlenbergia gloriosaX | royal bluebell | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PmXTX | Washingtonia filiferaX | California fan palm | Low | Moderate | Moderate | Low | Moderate | Moderate |
PmXTX | Washingtonia robustaX | Mexican fan palm | Low | Moderate | Low | Low | Moderate | Moderate |
BuX | Watsonia spp.X | watsonia | Low | Moderate | Low | Moderate | Moderate | Moderate |
SX | Wedelia texana (Zexmenia hispida)X | hairy wedelia | Moderate | Unknown | Unknown | Unknown | Low | Unknown |
GcXPX | Wedelia trilobataX | trailing daisy | Unknown | Moderate | Moderate | Unknown | Moderate | Moderate |
SX | Weigela coraeensisX | white weigela | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
SX | Weigela cvs.X | weigelia | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
SX | Weigela floridaX | weigela | Moderate | Moderate | Moderate | Moderate | Moderate | Not App. |
SX | Westringia 'Wynyabbie Gem'X | Wynyabbie Gem westringia | Low | Low | Low | Low | Not App. | Unknown |
SX | Westringia brevifoliaX | small-leafed westringia | Low | Unknown | Low | Moderate | Not App. | Unknown |
SX | Westringia brevifolia var. raleighiiX | Raleigh westringia | Low | Unknown | Low | Unknown | Not App. | Unknown |
SX | Westringia fruticosa (rosmariniformis), hybrids, cvs.X | coast rosemary | Low | Low | Low | Low | Not App. | Unknown |
SX | Westringia glabraX | violet westringia | Low | Unknown | Low | Unknown | Not App. | Unknown |
SX | Westringia longifoliaX | winged westringia | Low | Unknown | Low | Moderate | Not App. | Unknown |
PX | Whipplea modesta (shade)X | modesty | Low | Unknown | Moderate | Low | Unknown | Unknown |
V | Wisteria spp.X | wisteria | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
PmXTX | Wodyetia bifurcataX | foxtail palm | Unknown | Unknown | High | Moderate | Unknown | Unknown |
TX | Wollemia nobilisX | Wollemi pine | Moderate | Unknown | Moderate | High | Unknown | Unknown |
PX | Woodwardia fimbriataX | giant chain fern | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PX | Woodwardia orientalisX | Oriental chain fern | Unknown | Unknown | High | High | Not App. | Not App. |
PX | Woodwardia radicansX | European chain fern | High | Unknown | High | High | Not App. | Not App. |
PX | Wyethia angustifoliaX | narrow leaf mule ears | Low | Low | Unknown | Unknown | Unknown | Unknown |
BuX | X Amarcrinum memoria-corsiiX | crinodonna | Low | Very Low | Moderate | Very Low | Unknown | Unknown |
BuX | X Amarygia hybridsX | amarygia | Very Low | Very Low | Very Low | Very Low | Unknown | Unknown |
TX | X Chiranthofremontia lenziiX | hybrid monkey hand tree | Low | Low | Low | Low | Unknown | Unknown |
TX | X Chitalpa tashkentensisX | chitalpa | Low | Low | Low | Low | Low | Low |
TX | X Cupressocyparis leylandiiX | Leyland cypress | Moderate | Moderate | Moderate | Not App. | Not App. | Not App. |
V | X Fatshedera lizeiX | botanical wonder | Moderate | Moderate | Moderate | Moderate | Not App. | Not App. |
PXSuX | X Graptosedum cultivarsX | graptosedum | Low | Not App. | Low | Low | Unknown | Unknown |
SX | X Halimiocistus sahuciiX | hybrid rockrose | Low | Unknown | Low | Low | Unknown | Unknown |
SX | X Halimiocistus wintonensisX | halimiocistus | Low | Low | Low | Low | Unknown | Unknown |
PX | X Heucherella cvs. (shade)X | foamy bells | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PXSuX | X Mangave cvs.X | mangave | Low | Unknown | Low | Low | Unknown | Unknown |
PXSuX | X Pachyveria spp.X | pachyveria | Low | Unknown | Low | Low | Unknown | Unknown |
SX | X Ruttyruspolia 'Phyllis Van Heerden'X | Phyllis Van Heerden ruttyruspolia | Unknown | Unknown | Moderate | Low | Unknown | Unknown |
PXSuX | X Sedeveria cvs.X | stonecrop | Low | Moderate | Low | Low | Unknown | Unknown |
PX | Xanthorrhoea spp.X | grass tree | Low | Not App. | Low | Low | Not App. | Not App. |
PX | Xeronema callistemonX | poor knight's lily | Moderate | Unknown | Moderate | Unknown | Unknown | Unknown |
PX | Xerophyllum tenaxX | bear grass | Low | Very Low | Unknown | Not App. | Unknown | Unknown |
PXSX | Xylococcus bicolorX | mission manzanita | Low | Unknown | Very Low | Low | Unknown | Not App. |
SX | Xylosma congestumX | shiny xylosma | Low | Low | Low | Moderate | Moderate | Moderate |
SXSuX | Yucca aloifoliaX | Spanish bayonet | Very Low | Unknown | Low | Very Low | Low | Low |
SXSuX | Yucca baccataX | banana yucca | Very Low | Unknown | Very Low | Very Low | Very Low | Low |
SXSuX | Yucca brevifoliaX | Joshua tree | Very Low | Not App. | Not App. | Very Low | Very Low | Very Low |
SXSuX | Yucca decipiensX | palma China | Unknown | Unknown | Unknown | Unknown | Very Low | Low |
SXSuX | Yucca elataX | soaptree yucca | Very Low | Unknown | Very Low | Very Low | Very Low | Low |
SXSuX | Yucca elephantipesX | giant yucca | Very Low | Unknown | Low | Very Low | Unknown | Unknown |
SXSuX | Yucca faxonianaX | giant white yucca | Unknown | Unknown | Unknown | Very Low | Very Low | Low |
SXSuX | Yucca filamentosa, cvs.X | Adam's needle | Low | Moderate | Very Low | Very Low | Low | Unknown |
SXSuX | Yucca glaucaX | soapweed yucca | Very Low | Unknown | Low | Unknown | Low | Unknown |
SXSuX | Yucca gloriosa X | Spanish dagger | Low | Low | Low | Very Low | Low | Low |
SXSuX | Yucca linearifoliaX | linear-leaf yucca | Unknown | Unknown | Very Low | Unknown | Unknown | Unknown |
SXSuX | Yucca recurvifoliaX | curve leaf yucca | Unknown | Unknown | Low | Very Low | Low | Moderate |
SXSuX | Yucca rigidaX | blue yucca | Very Low | Unknown | Very Low | Very Low | Very Low | Low |
SXSuX | Yucca rostrataX | beaked yucca | Very Low | Unknown | Very Low | Very Low | Very Low | Low |
SXSuX | Yucca rupicolaX | twisted yucca | Unknown | Unknown | Very Low | Unknown | Low | Low |
SXSuX | Yucca schidigera (Y. californica, Y. mohavensis)X | Mojave yucca | Very Low | Unknown | Very Low | Very Low | Very Low | Very Low |
SXSuX | Yucca schottiiX | mountain yucca | Unknown | Unknown | Very Low | Unknown | Very Low | Low |
SXSuX | Yucca spp. (Also see Hesperoyucca)X | | | | | | | |
SXSuX | Yucca thompsonianaX | Thompson's yucca | Unknown | Unknown | Very Low | Unknown | Very Low | Low |
SXSuX | Yucca whipplei (See Hesperoyucca whipplei)X | | | | | | | |
PX | Zaluzianskya katherinaeX | zaluzinskya | Moderate | Moderate | Moderate | Moderate | Unknown | Unknown |
PX | Zaluzianskya ovataX | night phlox | Unknown | Unknown | Moderate | Moderate | Unknown | Unknown |
PmXSX | Zamia furfuracea X | cardboard fern/palm | Not App. | Not App. | Moderate | Moderate | Not App. | Moderate |
PmXSX | Zamia pumilaX | Florida arrowroot | Not App. | Not App. | Moderate | High | Unknown | Unknown |
PX | Zantedeschia aethiopica (shade in desert)X | calla lily | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
PX | Zantedeschia spp., hybrids (shade in desert)X | pink/yellow calla lily | Moderate | Moderate | Moderate | Moderate | Not App. | Moderate |
| Zauschneria spp. (See Epilobium)X | | | | | | | |
TX | Zelkova serrataX | saw leaf zelkova | Moderate | Moderate | Low | Moderate | Moderate | Moderate |
SX | Zenobia pulverulentaX | honeycup | Moderate | Unknown | Unknown | Unknown | Unknown | Unknown |
BuX | Zephyranthes candidaX | white rain lily | Moderate | Low | Moderate | Low | Low | Moderate |
BuX | Zephyranthes robusta (See Habranthus robustus)X | | | | | | | |
BuX | Zephyranthes spp.X | zephyr flower | Moderate | Moderate | Moderate | Moderate | Low | Moderate |
SX | Zexmenia hispida (See Wedelia texana)X | | | | | | | |
BuX | Zigadenus fremontii (See Toxicocordian)X | | | | | | | |
PX | Zinnia acerosaX | desert zinnia | Unknown | Unknown | Low | Unknown | Low | Low |
GcXPX | Zinnia grandifloraX | prairie zinnia | Low | Moderate | Low | Low | Low | Low |
TX | Ziziphus jujubaX | Chinese jujube | Low | Low | Low | Moderate | Moderate | Moderate |
TX | Ziziphus obtusifoliaX | graythorn | Not App. | Unknown | Unknown | Unknown | Unknown | Unknown |
GX | Zoysia tenuifoliaX | Mascarene grass | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |