These species need (more) photos Illustrated Plant List

Abronia gracilis Graceful sand verbena, Slender sand verbena

native
Perennial herb

Abutilon abutiloides shrubby Indian mallow

• rare native
Perennial herb

Abutilon parvulum Dwarf indian mallow, Little abutilon

• rare native
Perennial herb

Acacia farnesiana Sweet acacia

non-native
Tree

Acacia paradoxa Kangaroo thorn

• invasive non-native
Shrub

Acaena pallida Pale biddy-biddy

non-native
Perennial herb

Acamptopappus sphaerocephalus var. hirtellus Hairy goldenhead, Rayless goldenhead, Round headed goldenhead

native
Shrub

Acamptopappus sphaerocephalus var. hirtellus

Acanthomintha duttonii San mateo thorn mint

• rare native
Annual herb

Acanthomintha ilicifolia San Diego thorn mint

• rare native
Annual herb

Acanthoscyphus parishii var. cienegensis Cienega seca oxytheca

• rare native
Annual herb

Acanthoscyphus parishii var. cienegensis

Acer campestre Hedge maple

non-native
Tree, Shrub

Acer glabrum var. douglasii Douglas maple

native
Tree, Shrub

Acer palmatum Japanese maple

non-native
Tree

Acer platanoides Norway maple

non-native
Tree, Shrub

Acer rubrum Red maple

non-native
Tree

Acer saccharum Sugar maple

non-native
Tree

Achlys triphylla ssp. triphylla Deer foot, Three-leaf deer foot

native
Perennial herb

Acleisanthes longiflora Angel trumpets, Angeltrumpet, Yerba de la rabia

• rare native
Perennial herb

Acleisanthes nevadensis Desert wing-fruit

• rare native
Perennial herb

Acmispon argophyllus var. adsurgens San clemente island bird's-foot trefoil

• rare native
Perennial herb

Acmispon dendroideus var. traskiae San clemente island lotus

• rare native
Shrub

Acmispon junceus var. biolettii Bioletti's rush lotus

native
Perennial herb

Acmispon procumbens var. procumbens Silky california broom

native
Perennial herb, Shrub

Aconitum delphiniifolium Larkspurleaf monkshood

non-native
Perennial herb

Aconogonon newberryi Newberry's smartweed

native
Perennial herb

Acorus calamus Sweetflag

non-native
Perennial herb

ACORACEAE

Aegilops geniculata Ovate goatgrass

non-native
Annual grass

Aeschynomene rudis Red aeschynomene, Zigzag jointvetch

non-native
Annual, Perennial herb

Agave deserti var. simplex Desert agave

native
Shrub

Agave shawii Coastal agave, Shaw's agave

native
Shrub

Agave shawii var. shawii Shaw's agave

• rare native
Shrub

Ageratina herbacea Fragrant snakeroot

• rare native
Perennial herb

Ageratum conyzoides Tropical whiteweed

non-native
Annual, Perennial herb

Agoseris apargioides var. maritima Woolly goat chicory

native
Perennial herb

Agrimonia striata Roadside agrimony

native
Perennial herb

Agrostis elliottiana Elliott's bentgrass

native
Annual grass

Agrostis hooveri Hoover's bent grass, Hoover's bentgrass

• rare native
Perennial grass

Agrostis humilis Mountain bent grass

• rare native
Perennial grass

Agrostis tandilensis Kennedy's bentgrass

non-native
Annual grass

Ajuga pyramidalis Pyramid bugle

non-native
Perennial herb

Albizia lebbeck Woman's tongue

non-native
Tree, Shrub

Alhagi maurorum Camel thorn

• invasive non-native
Shrub

Allionia incarnata var. villosa Trailing windmills

native
Annual, Perennial herb

Allium bolanderi var. mirabile Bolander's onion

native
Perennial herb (bulb)

Allium fimbriatum var. mohavense Mojave fringed onion, Mojave onion

native
Perennial herb (bulb)

Allium geyeri var. tenerum bulbil onion

• rare native
Perennial herb (bulb)

Allium howellii var. clokeyi Clokey's onion, Mt. pinos onion

• rare native
Perennial herb (bulb)

Allium howellii var. sanbenitense San benito onion

• rare native
Perennial herb (bulb)

Allium lacunosum var. micranthum Small flowered pitted onion, White fringed onion

native
Perennial herb (bulb)

Allium munzii Munz's onion

• rare native
Perennial herb (bulb)

Allium nevadense Nevada onion

• rare native
Perennial herb (bulb)

Allium paniculatum Mediterranean onion

non-native
Perennial herb (bulb)

Allium paniculatum var. paniculatum Panicled onion

non-native
Perennial herb (bulb)

Allium sanbornii var. congdonii Congdon's onion

• rare native
Perennial herb (bulb)

Allium sativum Cultivated garlic

non-native
Perennial herb (bulb)

Allium tolmiei Tolmie's onion

native
Perennial herb (bulb)

Allium tolmiei var. tolmiei Tolm's onion, Tolmei's onion

native
Perennial herb (bulb)

Allium tribracteatum Three bracted onion, Threebract onion

• rare native
Perennial herb (bulb)

Allium yosemitense Yosemite onion

• rare native
Perennial herb (bulb)

Alnus viridis Green alder

native
Tree, Shrub

BETULACEAE

Alnus viridis ssp. sinuata Sitka alder

native
Tree, Shrub

BETULACEAE

Alopecurus aequalis var. sonomensis Sonoma alopecurus, Sonoma shortawn foxtail

• rare native
Perennial grass

Alopecurus geniculatus Marsh foxtail, Water foxtail

native
Perennial grass

Aloysia wrightii Oreganillo, Vera dulce, Wright lippia

• rare native
Shrub

Alyogyne huegelii Blue hibiscus

non-native

Amaranthus arenicola Sandhill amaranth

non-native
Annual herb

Amaranthus caudatus Quilete

non-native
Annual herb

Amaranthus hybridus Slender pigweed, Slim amaranth

non-native
Annual herb

Amaranthus torreyi Sandhill amaranth

native
Annual herb

Amaranthus tuberculatus var. rudis Common waterhemp

non-native
Annual herb

Amaranthus watsonii Watson's amaranth

• rare native
Annual herb

Ambrosia ambrosioides Ambrosia bursage, Ambrosia leaved burbush

native
Perennial herb

Ambrosia chenopodiifolia San diego bur sage, San diego bursage

• rare native
Shrub

Ambrosia ilicifolia Holly leaved burbush, Hollyleaf bursage

native
Shrub

Ambrosia salsola var. pentalepis Five scaled burrobrush

native
Shrub

Ambrosia trifida Giant ragweed

• invasive non-native
Annual herb

Ambrosia Xplatyspina

native
Perennial herb

Ammophila breviligulata American beach grass, American beachgrass

non-native
Perennial grass

Ampelopsis brevipedunculata Amur peppervine

non-native
Perennial herb, Vine

Amphibromus nervosus Common swamp wallaby grass

non-native
Perennial grass

Amphipappus fremontii var. spinosus Spiny fremont's chaffbush

native
Shrub

Amsinckia grandiflora Large flowered fiddleneck, Largeflowered fiddleneck

• rare native
Annual herb

Amsinckia spectabilis var. microcarpa Small fruit seaside fiddleneck

native
Annual herb

Amsinckiopsis kingii var. harknessii Northern Great Basin popcornflower

native
Annual herb

Plagiobothrys kingii var. kingii Southern Great Basin popcornflower

native
Annual herb

Anchusa azurea Blue alkanet, Italian bugloss

non-native
Perennial herb

Ancistrocarphus keilii Santa ynez groundstar

• rare native
Annual herb

Androsace occidentalis Western rockjasmine

native
Annual herb

PRIMULACEAE

Anethum graveolens Dill

non-native
Annual herb

Angelica callii Call's angelica

• rare native
Perennial herb

Anoda cristata Violettas

non-native
Annual herb

Antennaria luzuloides Rush pussytoes, Silvery brown pussytoes

native
Perennial herb

Antennaria luzuloides ssp. luzuloides Rush pussytoes

native
Perennial herb

Antennaria marginata White margined pussytoes, Whitemargin pussytoes

• rare native
Perennial herb

Antennaria microphylla Littleleaf pussytoes

native
Perennial herb

Antennaria parvifolia Small leaf pussytoes

native
Perennial herb

Antennaria suffrutescens Evergreen everlasting, Evergreen pussytoes

• rare native
Perennial herb

Anthemis arvensis Corn chamomile

non-native
Annual herb

Anthyllis vulneraria Common kidneyvetch

non-native
Perennial herb

Antirrhinum majus Common snapdragon, Garden snapdragon

non-native
Annual, Perennial herb

Aphyllon californicum ssp. grayanum Gray's california broom rape

native
Perennial herb (parasitic)

Aphyllon pinorum Pinewoods broom rape

native
Perennial herb (parasitic)

Aphyllon validum Rock creek broom rape

native
Perennial herb (parasitic)

Aphyllon validum ssp. howellii Howell's broomrape

native
Perennial herb (parasitic)

Aphyllon validum ssp. validum Rock creek broomrape

native
Perennial herb (parasitic)

Arabis holboellii Holboell's rock cress, Holboell's rockcress

native
Perennial herb

Arabis pycnocarpa Creamflower rockcress

native
Perennial herb

Arabis pycnocarpa var. pycnocarpa Hairy fruit rock cress

native
Perennial herb

Arabis repanda var. greenei Greene's rock cress, Greene's rockcress

• rare native
Perennial herb

Arabis rigidissima var. rigidissima Trinity mountain rockcress, Trinity mtns. rock cress

• rare native
Perennial herb

Araucaria columnaris New caledonia pine

non-native
Tree

ARAUCARIACEAE

Arceuthobium douglasii Douglas dwarf mistletoe, Douglas's dwarf mistletoe

native
Perennial herb (parasitic)

VISCACEAE

Arctium lappa Great burdock, Greater burdock

non-native
Perennial herb

Arctomecon californica California bearpoppy

non-native
Perennial herb

Arctostaphylos glandulosa ssp. adamsii Adams' manzanita

native
Shrub

Arctostaphylos glutinosa Schreiber's manzanita

• rare native
Shrub

Arctostaphylos ohloneana Ohlone manzanita

• rare native
Shrub

Arctostaphylos peninsularis ssp. peninsularis Peninsular manzanita

native
Shrub

Arctostaphylos peninsularis ssp. peninsularis

Arctotis fastuosa Monarch of the veld, cape daisy

non-native
Annual herb

Arctotis venusta Blue-eyed african daisy

non-native
Perennial herb

Arenaria lanuginosa Spreading sandwort

native
Perennial herb

Arenaria lanuginosa var. saxosa Rock sandwort

• rare native
Perennial herb

Arenaria paludicola Marsh sandwort

• rare native
Perennial herb

Argyrochosma limitanea Southwestern false cloak fern

native
Fern (rhizomatous)

Aristida californica California threeawn

native
Perennial grass

Aristida dichotoma Churchmouse threeawn

non-native
Annual grass

Aristida divaricata Poverty three awn, Spreading threeawn

native
Perennial grass

Aristida purpurea var. fendleriana Fendler three awn, Fendler's threeawn

native
Perennial grass

Aristida purpurea var. parishii Parish three awn, Parish's threeawn

native
Perennial grass

Aristida purpurea var. purpurea Purple three awn, Purple threeawn

native
Perennial grass

Artemisia abrotanum Southernwood

non-native
Shrub

Artemisia absinthium Absinthium

non-native
Shrub

Artemisia campestris Field sagewort

native
Perennial herb

Artemisia ludoviciana ssp. candicans Gray mugwort, White sagebrush

native
Perennial herb

Artemisia nesiotica Island sage brush, Island sagebrush

• rare native
Shrub

Artemisia tridentata ssp. wyomingensis Wyoming big sagebrush, Wyoming sagebrush

native
Shrub

Artemisia tripartita Threetip sagebrush

native
Shrub

Artemisia tripartita ssp. tripartita Threetip sagebrush

• rare native
Shrub

Artemisia vulgaris Common wormwood

non-native
Perennial herb, Shrub

Asarum marmoratum Marbled wild ginger, Marbled wildginger

• rare native
Perennial herb (rhizomatous)

ARISTOLOCHIACEAE

Asclepias asperula Spider milkweed

native
Perennial herb

Asclepias asperula ssp. asperula Antelope horns, Spider milkweed

• rare native
Perennial herb

Asclepias cryptoceras Dwarf milkweed, Humboldt mountains milkweed, Pallid milkweed

native
Perennial herb

Asclepias fruticosa African milkweed

non-native
Perennial herb

Asclepias latifolia Broadleaf milkweed

native
Shrub

Asclepias linaria Needle leaf milkweed, Pineneedle milkweed

non-native
Perennial herb, Shrub

Asclepias nyctaginifolia Mojave milkweed

• rare native
Perennial herb

Asclepias tuberosa Butterfly milkweed

non-native
Shrub

Asclepias tuberosa ssp. interior Butterfly milkweed

non-native
Shrub

Ascophyllum nodosum Yellow tang

non-native
seaweed

FUCACEAE

Asperugo procumbens German madwort

non-native
Annual herb

Asplenium trichomanes spleenwort

native
Fern (rhizomatous)

ASPLENIACEAE

Asplenium trichomanes ssp. trichomanes spleenwort

• rare native
Fern (rhizomatous)

ASPLENIACEAE

Astragalus agrestis Purple loco weed

• rare native
Perennial herb

Astragalus allochrous Halfmoon milkvetch

native
Perennial herb

Astragalus allochrous var. playanus Halfmoon milkvetch, Playa milk vetch

• rare native
Perennial herb

Astragalus andersonii Anderson's milkvetch, Anderson's rattle weed

native
Perennial herb

Astragalus anxius Troubled milk vetch, Troubled milkvetch

• rare native
Perennial herb

Astragalus aridus Annual desert milk vetch, Annual desert milkvetch

native
Annual herb

Astragalus atratus Mourning milkvetch

native
Perennial herb

Astragalus atratus var. mensanus Darwin mesa milk vetch, Darwin mesa milkvetch

• rare native
Perennial herb

Astragalus didymocarpus var. milesianus Dwarf white milkvetch, Miles' milk vetch

• rare native
Annual herb

Astragalus didymocarpus var. obispoensis San luis obispo milk vetch, San obispo milkvetch

native
Annual herb

Astragalus didymocarpus var. obispoensis

Astragalus douglasii var. perstrictus Jacumba milk vetch, Jacumba milkvetch

• rare native
Perennial herb

Astragalus hornii Horn's milkvetch

native
Annual herb

Astragalus hornii var. hornii Horn's milk vetch

• rare native
Annual herb

Astragalus lentiginosus var. antonius San antonio milk vetch, San antonio milkvetch

• rare native
Perennial herb

Astragalus lentiginosus var. idriensis Freckled milkvetch, New idria milk vetch

native
Annual, Perennial herb

Astragalus lentiginosus var. lentiginosus Freckled milk vetch, Freckled milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. lentiginosus

Astragalus lentiginosus var. sesquimetralis Mono locoweed, Sodaville milk vetch

• rare native
Perennial herb

Astragalus lentiginosus var. sesquimetralis

Astragalus macrodon Salinas milk vetch, Salinas milkvetch

• rare native
Perennial herb

Astragalus nevinii San clemente island milk vetch, San clemente island milkvetch

• rare native
Perennial herb

Astragalus newberryi var. castoreus Newberry's milkvetch

native
Perennial herb

Astragalus nutans Lax flowered locoweed, Providence Mountain milkvetch

• rare native
Annual herb

Astragalus nuttallianus var. austrinus Smallflowered milkvetch, Southern small flowered milk vetch

native
Annual herb

Astragalus nyensis Nye milk-vetch

• rare native
Annual herb

Astragalus oocarpus San diego milk vetch, San diego milkvetch

• rare native
Perennial herb

Astragalus pachypus var. jaegeri Jaeger's milk vetch, Jaeger's milkvetch

• rare native
Shrub

Astragalus pachypus var. pachypus Thick pod milk vetch, Thickpod milkvetch

native
Perennial herb

Astragalus palmeri Palmer locoweed, Palmer's milk vetch, Palmer's milkvetch

native
Perennial herb

Astragalus preussii Preuss' milkvetch, Preuss's milk vetch

native
Perennial herb

Astragalus preussii var. laxiflorus Lancaster milk vetch, Lancaster milkvetch

• rare native
Perennial herb

Astragalus preussii var. preussii Desert milkvetch, Preuss's milk vetch

• rare native
Perennial herb

Astragalus pulsiferae var. suksdorfii Suksdorf's milk vetch, Suksdorf's milkvetch

• rare native
Perennial herb

Astragalus rattanii var. rattanii Rattan's milk vetch, Rattan's milkvetch

• rare native
Perennial herb

Astragalus sabulonum Gravel milk vetch, Gravel milkvetch

• rare native
Annual herb

Astragalus tener var. ferrisiae Ferris' milkvetch, Ferris's milk vetch

• rare native
Annual herb

Astragalus tener var. titi Coastal dunes milk vetch, Coastal dunes milkvetch

• rare native
Annual herb

Astragalus tephrodes Ashen milkvetch

native
Perennial herb

Astragalus traskiae Trask's milk vetch, Trask's milkvetch, Trasks locoweed

• rare native
Perennial herb

Astragalus umbraticus Bald mountain milkvetch

• rare native
Perennial herb

Astragalus whitneyi var. lenophyllus Balloonpod milkvetch, Whitney's milk vetch

• rare native
Perennial herb

Astrolepis cochisensis Cochise scaly cloakfern

native
Fern

Athysanus unilateralis Ladiestongue mustard

native
Annual herb

Silene armeria

non-native

Atriplex argentea var. argentea Silverscale saltbush

native
Annual herb

Atriplex canescens var. laciniata Caleb saltbush

native
Shrub

Atriplex cordulata Heartscale

native
Annual herb

Atriplex cordulata var. cordulata Heartscale

• rare native
Annual herb

Atriplex cordulata var. erecticaulis Earlimart orach

• rare native
Annual herb

Atriplex elegans var. elegans Wheelscale saltbush

native
Annual herb

Atriplex gardneri Gardner's saltbush

native
Perennial herb

Atriplex gardneri var. falcata Salt sage, Sickle saltbush

• rare native
Perennial herb

Atriplex micrantha Twoscale saltbush

non-native
Annual herb

Atriplex nummularia Bluegreen saltbush

non-native
Shrub

Atriplex pacifica Pacific saltbrush, South coast saltbush, South coast saltscale

• rare native
Annual herb

Atriplex persistens Pool orache, Pool oracle, Sacramento saltbush

• rare native
Annual herb

Atriplex subtilis Deltoid bract saltbush

• rare native
Annual herb

Aubrieta deltoidea Garden aubrieta

non-native
Perennial herb

Avena occidentalis Western oat, Western wild oats

non-native
Annual grass

Avena sterilis Animated oat, Sterile oats

non-native
Annual grass

Avicennia marina var. australasica Gray mangrove

non-native
Tree

ACANTHACEAE

Baccharis brachyphylla Short leaved baccharis, Short leaved baccharis, Shortleaf baccharis

native
Shrub

Baccharis plummerae ssp. glabrata San simeon baccharis

• rare native
Shrub

Baccharis vanessae Encinitas baccharis

• rare native
Shrub

Bahia neomexicana Many flowered bahia

• rare native
Annual herb

Balsamorhiza hirsuta Hairy balsam root

native
Perennial herb

Balsamorhiza incana Hoary balsamroot

native
Perennial herb

Barbarea vulgaris Bitter wintercress, Common wintercress, Yellow rocket

non-native
Perennial herb

Bartramia ithyphylla Bartramia moss

native
Moss

BARTRAMIACEAE

Bartramia pomiformis Bartramia moss

native
Moss

BARTRAMIACEAE

Bartramia stricta Bartramia moss

native
Moss

BARTRAMIACEAE

Bauhinia galpinii African plume

non-native
Tree, Shrub

Bensoniella oregona Bensoniella

• rare native
Perennial herb

Berberis haematocarpa Red fruited mahonia

native
Shrub

Berberis harrisoniana Harrison's barberry

• rare native
Shrub

Berberis higginsiae Fremont's mahonia

• rare native
Shrub

Berberis pinnata ssp. insularis Island barberry

• rare native
Shrub

Berberis vulgaris Common barberry

non-native
Shrub

Betula glandulosa Resin birch; scrub birch

• rare native
Shrub

BETULACEAE

Bidens bipinnata Spanish needles

native
Perennial herb

Bidens tripartita Threelobe beggarticks, Tickseed

non-native
Annual herb

Bituminaria bituminosa Arabian pea

non-native
Perennial herb

Blepharidachne kingii King's eyelash grass, King's eyelashgrass

• rare native
Perennial grass

Bloomeria crocea var. montana Mountain goldenstar

native
Perennial herb

Boechera constancei Constance's rock cress

• rare native
Perennial herb

Boechera davidsonii Davidson's rockcress

native
Perennial herb

Boechera divaricarpa Spreadingpod rockcress

native
Perennial herb

Boechera hirshbergiae Hirshberg's rockcress

• rare native
Perennial herb

Boechera koehleri Koehler's rockcress

• rare native
Perennial herb

Boechera lemmonii Lemmon's rockcress

native
Perennial herb

Boechera lincolnensis Lincoln rockcress

• rare native
Perennial herb

Boechera microphylla Small-leaved rock cress

• rare native
Perennial herb

Boechera pauciflora Hairy stem rockcress

native
Perennial herb

Boechera peirsonii San bernardino rock cress

• rare native
Perennial herb

Boechera rollei Rolle's rockcress

• rare native
Perennial herb

Boechera stricta Drummond's rockcress

native
Perennial herb

Boechera suffrutescens Woody rockcress

native
Perennial herb

Boechera tiehmii Tiehm's rock cress

• rare native
Perennial herb

Boechera xylopoda Bigfoot hybrid rockcress

native
Perennial herb

Boechera yorkii Last chance rock cress

• rare native
Perennial herb

Boehmeria cylindrica Smallspike false nettle

non-native
Perennial herb

URTICACEAE

Boerhavia coulteri Coulter's spiderling

native
Annual herb

Boerhavia coulteri var. palmeri Coulter's spiderling

native
Annual herb

Boerhavia diffusa Red spiderling

non-native
Perennial herb

Bolboschoenus fluviatilis River bulrush

native
Perennial grasslike herb

Botrychium lunaria Common moonwort, Moonwort grapefern

• rare native
Fern (rhizomatous)

Botrychium minganense Mingan moonwort

• rare native
Fern (rhizomatous)

Botrychium montanum Western goblin

• rare native
Fern (rhizomatous)

Botrychium paradoxum Paradox moonwort

• rare native
Fern

Botrychium pedunculosum Stalked moonwort

• rare native
Perennial herb

Botrychium pinnatum Northwestern moonwort

• rare native
Fern (rhizomatous)

Botrychium pumicola Crater lake grapefern

• rare native
Fern

Botrychium simplex var. compositum Little grapefern

native
Fern

Bouteloua aristidoides Needle grama

native
Annual grass

Bouteloua aristidoides var. aristidoides Needle grama

native
Annual grass

Bouteloua aristidoides var. aristidoides

Bouteloua eriopoda Black grama

• rare native
Perennial grass

Brassica juncea Brown mustard, India mustard

non-native
Annual herb

Brassica napus Rapeseed

non-native
Annual herb

Brickellia knappiana Knapp brickellbush, Knapp brickellia, Knapp's brickellia

native
Shrub

Briza media Perennial quakinggrass

non-native
Annual grass

Brodiaea elegans ssp. hooveri Hoover's brodiaea, Hoover's harvest brodiaea

native
Perennial herb

Brodiaea kinkiensis San clemente island brodiaea

• rare native
Perennial herb (bulb)

Bromus arizonicus Arizona brome

native
Annual grass

Bromus berteroanus Chilean chess

non-native
Annual grass

Bromus briziformis Rattlesnake brome, Rattlesnake chess

non-native
Annual grass

Bromus hallii Hall's brome

native
Perennial grass

Bromus racemosus Smooth brome

non-native
Annual grass

Bromus richardsonii Fringed brome

native
Perennial grass

Bromus secalinus Chess brome, Rye brome

non-native
Annual grass

Bulbostylis capillaris Thread leaf beakseed, Threadleaf beakseed

• rare native
Annual grasslike herb

Buxbaumia aphylla Buxbaumia moss

native
Moss

BUXBAUMIACEAE

Buxbaumia viridis Buxbaumia moss

• rare native
Moss

BUXBAUMIACEAE

Caesalpinia pulcherrima Pride of barbados

non-native
Shrub

Caesalpinia spinosa Tara

non-native
Tree, Shrub

Calamagrostis bolanderi Bolander's reedgrass

• rare native
Perennial grass (rhizomatous)

Calamagrostis breweri Short hair reedgrass

native
Perennial grass

Calamagrostis crassiglumis Thurber's reed grass

• rare native
Perennial grass (rhizomatous)

Calamagrostis stricta ssp. stricta Slimstem reedgrass

native
Perennial grass (rhizomatous)

Calia secundiflora

non-native

Callitriche fassettii Fassett's water starwort

native
Perennial herb

Calochortus syntrophus Callahan's mariposa lily

• rare native
Perennial herb

Calotropis procera Roostertree

non-native
Tree, Shrub, Perennial herb

ASCLEPIADACEAE

Caltha palustris Yellow marsh marigold

non-native
Perennial herb

Calycadenia spicata Spicate calycadenia, Spiked western rosinweed

native
Annual herb

Calyptridium pulchellum Mariposa pussypaws

• rare native
Annual herb

Calyptridium pygmaeum Pygmy pussypaws

• rare native
Annual herb

Calystegia collina ssp. tridactylosa Coast range false bindweed, Three fingered morning glory

• rare native
Perennial herb

Calystegia macrostegia ssp. amplissima Island morning glory

• rare native
Perennial herb

Calystegia malacophylla var. berryi Berry's morning glory

• rare native
Perennial herb (rhizomatous)

Calystegia sepium ssp. binghamiae Bingham's false bindweed, Santa barbara morning glory

• rare native
Perennial herb (rhizomatous)

Camissonia kernensis ssp. gilmanii Gilman's evening primrose

native
Annual herb

Camissonia sierrae ssp. alticola Mono hot springs evening primrose

• rare native
Annual herb

Camissoniopsis guadalupensis San clemente island evening-primrose

native
Annual herb

Camissoniopsis guadalupensis ssp. clementina San clemente island evening-primrose

• rare native
Annual herb

Camissoniopsis guadalupensis ssp. clementina

Camissoniopsis luciae Santa lucia sun cup

native
Annual herb

Campsis radicans Trumpet creeper

non-native
Vine

BIGNONIACEAE

Canbya aurea Golden pygmypoppy

non-native
Annual herb

Cannabis sativa Herb, Marijuana

non-native
Annual herb

CANNABACEAE

Capsicum annuum Cayenne pepper

non-native
Annual, Perennial herb

Caragana arborescens Siberian pea tree, Siberian peashrub

non-native
Tree, Shrub

Cardamine cordifolia Heartleaf bittercress

native
Perennial herb

Cardamine flexuosa Woodland bittercress

non-native
Annual, Biennial, Perennial herb

Cardamine nuttallii var. gemmata Nuttall's toothwort, Yellow tubered toothwort

• rare native
Perennial herb (rhizomatous)

Cardamine occidentalis Big western bittercress, Western toothwort

native
Perennial herb

Carex angustata Narrow leaved sedge, Wide fruit sedge

native
Perennial grasslike herb

Carex aquatilis var. dives Sitka sedge

native
Perennial grasslike herb

Carex arcta Bear sedge

• rare native
Perennial grasslike herb

Carex buxbaumii Buxbaum's sedge

• rare native
Perennial grasslike herb

Carex cephalophora Oval leaf sedge

non-native
Perennial grasslike herb

Carex comosa Bristly sedge, Longhair sedge

• rare native
Perennial grasslike herb (rhizomatous)

Carex cyrtostachya Arching sedge

• rare native
Perennial grasslike herb

Carex deflexa Mountain mat sedge

native
Perennial grasslike herb

Carex deflexa var. boottii Mountain mat sedge

native
Perennial grasslike herb

Carex disperma Soft leaf sedge, Softleaf sedge

native
Perennial grasslike herb

Carex fissuricola Cleft sedge

native
Perennial grasslike herb

Carex hassei Hasse's sedge, Salt sedge

native
Perennial grasslike herb

Carex haydeniana Cloud sedge

native
Perennial grasslike herb

Carex hirtissima Fuzzy sedge

native
Perennial grasslike herb

Carex hystericina Bottlebrush sedge

• rare native
Perennial grasslike herb (rhizomatous)

Carex idahoa Idaho sedge

• rare native
Perennial grasslike herb (rhizomatous)

Carex interior Inland sedge

native
Perennial grasslike herb

Carex laeviculmis Smooth stem sedge, Smoothstem sedge

native
Perennial grasslike herb

Carex lasiocarpa Slender sedge, Woolly fruited sedge

• rare native
Perennial grasslike herb (rhizomatous)

Carex lemmonii Lemmon's sedge

native
Perennial grasslike herb

Carex lenticularis var. impressa Few ribbed sedge, Lakeshore sedge

native
Perennial grasslike herb

Carex lenticularis var. limnophila Lakeshore sedge

• rare native
Perennial grasslike herb

Carex leptalea Bristlestalked sedge, Flaccid sedge

• rare native
Perennial grasslike herb (rhizomatous)

Carex livida Livid sedge

• rare native
Perennial grasslike herb (rhizomatous)

Carex luzulina Wood rush sedge, Woodrush sedge

native
Perennial grasslike herb

Carex mariposana Mariposa sedge

native
Perennial grasslike herb

Carex mertensii Mertens' sedge

native
Perennial grasslike herb

Carex multicostata Many ribbed sedge, Manyrib sedge

native
Perennial grasslike herb

Carex neurophora Alpine nerve sedge

native
Perennial grasslike herb

Carex pachycarpa Furrowed broomsedge

native
Perennial grasslike herb

Carex pachystachya Chamisso sedge, Thick headed sedge

native
Perennial grasslike herb

Carex parryana Parry's sedge

native
Perennial grasslike herb (rhizomatous)

Carex petasata Liddon sedge, Liddon's sedge

• rare native
Perennial grasslike herb

Carex phaeocephala Brown head sedge, Dunhead sedge, Mountain hare sedge

native
Perennial grasslike herb

Carex praticola Meadow sedge

• rare native
Perennial grasslike herb

Carex preslii Presl's sedge

native
Perennial grasslike herb

Carex proposita Great smoky mountain sedge, Propose sedge

native
Perennial grasslike herb

Carex saliniformis Salt sedge

• rare native
Perennial grasslike herb

Carex sartwelliana Yosemite sedge

native
Perennial grasslike herb

Carex scoparia Pointed broom sedge

native
Perennial grasslike herb

Carex scoparia var. scoparia Pointed broomsedge

• rare native
Perennial grasslike herb

Carex serpenticola Serpentine sedge

• rare native
Perennial grasslike herb

Carex specifica Narrow fruit sedge

native
Perennial grasslike herb

Carex stevenii Steven's sedge

• rare native
Perennial grasslike herb (rhizomatous)

Carex stipata Awlfruit sedge

native
Perennial grasslike herb

Carex stipata var. stipata Awl fruited sedge, Owlfruit sedge

native
Perennial grasslike herb

Carex tahoensis Tahoe sedge

• rare native
Perennial grasslike herb

Carex texensis Texas sedge

non-native
Perennial grasslike herb

Carex tiogana Tioga pass sedge, Tioga sedge

• rare native
Perennial grasslike herb

Carex triquetra Triangular fruit sedge, Triangularfruit sedge

native
Perennial grasslike herb

Carex unilateralis Lateral sedge

native
Perennial grasslike herb

Carex vallicola Valley sedge

• rare native
Perennial grasslike herb

Carex viridula Little green sedge

native
Perennial grasslike herb

Carex viridula ssp. viridula Little green sedge

• rare native
Perennial grasslike herb

Carthamus leucocaulos White stemmed distaff thistle, Whitestem distaff thistle

non-native
Annual herb

Cascadia nuttallii Nuttall's saxifrage

• rare native
Perennial herb

Castela emoryi Crucifixion thorn

• rare native
Shrub

SIMAROUBACEAE

Castilleja ambigua var. heckardii Heckard's owl's clover

• rare native
Annual herb

Castilleja brevilobata Short-lobed paintbrush

• rare native
Perennial herb

Castilleja densiflora ssp. obispoensis Obispo indian paintbrush, San luis obispo owl's clover

native
Annual herb

Castilleja densiflora var. obispoensis San luis obispo owl's-clover

• rare native
Annual herb

Castilleja elata Siskiyou paintbrush

• rare native
Perennial herb

Castilleja grisea San clemente island indian paintbrush

• rare native
Perennial herb (hemiparasitic)

Castilleja hispida Harsh indian paintbrush

native
Perennial herb (hemiparasitic)

Castilleja lanata

native
Perennial herb (hemiparasitic)

Castilleja litoralis Oregon coast paintbrush

• rare native
Perennial herb

Castilleja mollis Soft leaved indian paintbrush

• rare native
Perennial herb (hemiparasitic)

Castilleja sulphurea Sulphur indian paintbrush

non-native
Perennial herb

Castilleja uliginosa Pitkin marsh indian paintbrush

• rare native
Perennial herb (hemiparasitic)

Casuarina equisetifolia Australian Pine, Beach sheoak

• invasive non-native
Tree

CASUARINACEAE

Caulanthus amplexicaulis var. barbarae Claspingleaf wild cabbage, Santa barbara jewelflower

• rare native
Annual herb

Caulanthus coulteri var. coulteri Coulter's jewel flower

native
Annual herb

Caulanthus major var. nevadensis Sierra nevada wild cabbage, Slender wild cabbage

• rare native
Perennial herb

Ceanothus impressus var. nipomensis Nipomo mesa ceanothus, Santa barbara ceanothus

native
Shrub

Ceanothus ophiochilus Vail lake ceanothus

• rare native
Shrub

Ceanothus sonomensis Sonoma ceanothus

• rare native
Shrub

Ceanothus thyrsiflorus var. griseus Carmel ceanothus

native
Shrub

Ceanothus Xlorenzenii Whitethorn x tobacco brush

native
Tree, Shrub

Cedronella canariensis Herb of gilead

non-native
Perennial herb, Shrub

Celtis laevigata Sugarberry

native
Tree

CANNABACEAE

Centaurea cineraria Dusty miller

non-native
Perennial herb

Centaurea jacea ssp. jacea Brown knapweed

non-native
Perennial herb

Centaurea jacea ssp. nigra Black knapweed

non-native
Perennial herb

Centaurea nigrescens Tyrol knapweed

non-native
Perennial herb

Centaurium pulchellum Branched centaury

non-native
Annual herb

Cerastium tomentosum Snow in summer

non-native
Perennial herb

Cevallia sinuata Stinging serpent

non-native
Perennial herb

Chaenactis carphoclinia var. peirsonii Peirson's pincushion

• rare native
Annual herb

Chaenactis parishii Parish's chaenactis

• rare native
Perennial herb

Chamaemelum fuscatum Dusky dog fennel, Dusky dogfennel

non-native
Annual herb

Chamaemelum nobile Roman chamomile, Russian chamomile

non-native
Perennial herb

Chenopodium capitatum Blite goosefoot, Strawberry blite

non-native
Annual herb

Chenopodium capitatum var. capitatum Strawberry blite

native
Annual herb

Chenopodium capitatum var. parvicapitatum Strawberry blite

non-native
Annual herb

Chenopodium capitatum var. parvicapitatum

Chenopodium desiccatum Aridland goosefoot, Dry goosefoot

native
Annual herb

Chenopodium nevadense Nevada goosefoot

native
Annual herb

Chenopodium nitens Shiny seed goosefoot

native
Annual herb

Chenopodium opulifolium Seaport goosefoot, White goosefoot

non-native
Annual herb

Chenopodium simplex Large seeded goosefoot, Mapleleaf goosefoot

• rare native
Annual herb

Chloracantha spinosa var. spinosa Spiny goldenbush

native
Perennial herb

Chloris gayana Rhodes grass

non-native
Perennial grass

Chloris truncata Australian fingergrass, Truncate finger grass

non-native
Perennial grass

Chloris virgata Feather finger grass, Feather fingergrass

non-native
Annual grass

Chlorogalum pomeridianum var. minus Dwarf soaproot, Wavyleaf soap plant

• rare native
Perennial herb (bulb)

Chloropyron tecopense Tecopa bird's-beak

• rare native
Annual herb

Chorisia speciosa Silk floss tree

non-native
Tree

BOMBACACEAE

Chorizanthe blakleyi Blakley's spineflower

• rare native
Annual herb

Chorizanthe eastwoodiae Eastwood's spineflower

native
Annual herb

Chorizanthe fimbriata var. laciniata Lace fringed spineflower

native
Annual herb

Chorizanthe parryi var. fernandina San fernando valley spineflower

• rare native
Annual herb

Chorizanthe rectispina Prickly spineflower, Straight awned spineflower

• rare native
Annual herb

Chorizanthe ventricosa Priest valley spineflower

• rare native
Annual herb

Chrysothamnus depressus Long flowered rabbitbrush, Longflower rabbitbrush

native
Shrub

Chrysothamnus greenei Greene's rabbitbrush

• rare native
Shrub

Chrysothamnus humilis Truckee rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. lanceolatus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. lanceolatus

Chylismia arenaria Sand evening-primrose

• rare native
Annual, Perennial herb

Chylismia claviformis ssp. cruciformis Cruciform evening-primrose

• rare native
Annual, Perennial herb

Cicer arietinum Chick pea

non-native
Perennial herb

Cirsium andrewsii Franciscan thistle

• rare native
Perennial herb

Cirsium canescens Prairie thistle

non-native
Perennial herb

Cirsium ochrocentrum var. ochrocentrum Yellowspine thistle

non-native
Perennial herb

Cirsium remotifolium var. remotifolium Remote-leaved thistle

native
Perennial herb

Cirsium rhothophilum Surf thistle

• rare native
Perennial herb

Cirsium scariosum var. loncholepis La graciosa thistle

• rare native
Perennial herb

Cirsium scariosum var. scariosum Elk thistle

native
Perennial herb

Cistus monspeliensis Montpelier cistus, Resinous rockrose

non-native
Shrub (stem succulent)

Citrullus colocynthis Colocynth

non-native
Annual herb

Cladium californicum California sawgrass, Saw grass

• rare native
Perennial grasslike herb

Clarkia tembloriensis ssp. calientensis Vasek's clarkia

• rare native
Annual herb

Claytonia cordifolia Heart leaf spring beauty, Heartleaf springbeauty

native
Perennial herb

Claytonia perfoliata ssp. mexicana Southern miner's lettuce

native
Annual herb

Clematis terniflora Japanese clematis, Sweet autumn clematis

non-native
Vine

Peritoma jonesii Jones' bee plant

native
Annual herb

Peritoma platycarpa Golden bee plant

native
Annual herb

Clinopodium vulgare Wild basil

non-native
Perennial herb

Clitoria ternatea Asian pigeonwings

non-native
Perennial herb, Vine

Cochlearia groenlandica Greenland cochlearia

• rare native
Annual herb

Cochlearia officinalis Spoonwort

native
Annual herb

Coix lacryma-jobi Job's tears

non-native
Perennial grass

Collinsia antonina San antonio collinsia

• rare native
Annual herb

Collinsia torreyi var. brevicarinata Torrey's blue eyed mary, Torrey's collinsia

native
Annual herb

Colutea arborescens Bladder senna

non-native
Tree, Shrub

Conringia orientalis Hare's ear mustard

non-native
Annual herb

Consolida ajacis Doubtful knight's spur

non-native
Annual herb

Convolvulus althaeoides Hollyhock bindweed, Mallow bindweed

non-native
Perennial herb, Vine

Convolvulus tricolor Dwarf morning glory

non-native
Annual herb, Vine

Cordylanthus capitatus Yakima bird's beak

• rare native
Annual herb (hemiparasitic)

Cordylanthus parviflorus Purple bird's beak

• rare native
Annual herb (hemiparasitic)

Cordylanthus pringlei Pringle's bird's beak

native
Annual herb

Cordylanthus tenuis ssp. barbatus Fresno county bird's beak

• rare native
Annual herb (hemiparasitic)

Cordylanthus tenuis ssp. capillaris Pennell's bird's beak

• rare native
Annual herb (hemiparasitic)

Coreopsis wrightii Rock tickseed, Wright's coreopsis

non-native
Annual herb

Corethrogyne filaginifolia var. incana San diego sand aster, San diego sandaster

• rare native
Perennial herb

Cornus canadensis Bunch berry, Bunchberry

native
Perennial herb

CORNACEAE

Cornus florida Flowering dogwood

non-native
Shrub, Tree

CORNACEAE

Coronilla valentina Mediterranean crownvetch

non-native
Shrub

Cosmos bipinnatus Garden cosmos

non-native
Annual herb

Cosmos sulphureus Sulphur cosmos

non-native
Annual herb

Cota tinctoria Golden marguerite

non-native
Perennial herb

Cotinus coggygria European smoketree

non-native
Tree, Shrub

ANACARDIACEAE

Cotoneaster simonsii Simons' cotoneaster

non-native
Shrub

Crassula solieri Little pygmy weed, Smoothseed pygmyweed

native
Annual herb

Crepis modocensis ssp. modocensis Modoc hawksbeard

native
Perennial herb

Crepis modocensis ssp. subacaulis Modoc hawksbeard

native
Perennial herb

Crepis monticola Mountain hawk's beard, Mountain hawksbeard

native
Perennial herb

Crepis occidentalis ssp. costata Largeflower hawksbeard

native
Perennial herb

Crepis occidentalis ssp. occidentalis Largeflower hawksbeard

native
Perennial herb

Crepis occidentalis ssp. pumila Largeflower hawksbeard

native
Perennial herb

Crepis rubra Red hawksbeard

non-native
Annual herb

Crepis setosa Bristly hawksbeard, Rough hawksbeard

non-native
Annual herb

Crepis tectorum Narrowleaf hawksbeard

non-native
Annual herb

Crocanthemum greenei Island rush-rose

• rare native
Shrub

Crupina vulgaris Bearded creeper, Common crupina

• invasive non-native
Annual herb

Cryptantha barbigera var. fergusoniae Palm springs cryptantha

native
Annual herb

Cryptantha celosioides Cocks comb cat's eye

• rare native
Perennial herb

Cryptantha clementina San Clemente Island dune cryptantha

native
Annual herb

Cryptantha clokeyi Clokey's cryptantha, Prickly cryptantha

• rare native
Annual herb

Cryptantha cycloptera Tucson cryptantha

native
Annual herb

Cryptantha decipiens Granel forget me not, Gravel cryptantha, Gravelbar cryptantha

native
Annual herb

Cryptantha hooveri Hoover's cryptantha

• rare native
Annual herb

Cryptantha mariposae Mariposa cryptantha

• rare native
Annual herb

Cryptantha milobakeri Milo baker's cryptantha

native
Annual herb

Cryptantha muricata var. denticulata Prickly-nut cryptantha

native
Annual herb

Cryptantha nemaclada Colusa cryptantha

native
Annual herb

Cryptantha sparsiflora Slender cryptantha

native
Annual herb

Cryptantha spiculifera Snake river cryptantha

native
Annual herb

Cryptantha spithamaea

• rare native
Annual herb

Cryptantha torreyana var. torreyana Torrey's cryptantha

native
Annual herb

Cryptantha traskiae Trask's cryptantha

• rare native
Annual herb

Cryptantha wigginsii Wiggins' cryptantha

• rare native
Annual herb

Cucumis melo Cantaloupe

non-native
Annual, Perennial herb

Cucumis melo var. dudaim Dudaim melon

non-native
Annual, Perennial herb

Cucumis myriocarpus Gooseberry gourd, Paddy melon

non-native
Annual herb, Vine

Cucurbita ficifolia Figleaf gourd

non-native
Vine

Cuscuta brachycalyx San joaquin dodder

native
Annual herb, Vine (parasitic)

Cuscuta californica var. papillosa Chaparral dodder, Papillate dodder

native
Annual herb, Vine (parasitic)

Cuscuta indecora Big seed alfalfa dodder, Bigseed alfalfa dodder

native
Annual herb, Vine (parasitic)

Cuscuta indecora var. indecora Big seed alfalfa dodder, Bigseed alfalfa dodder

native
Annual herb, Vine (parasitic)

Cuscuta leptantha Slender dodder

non-native
Annual herb, Vine (parasitic)

Cuscuta pentagona Five angled dodder, Fiveangled dodder, Western field dodder

native
Annual herb, Vine (parasitic)

Cuscuta reflexa Giant dodder

non-native
Annual herb

Cuscuta suksdorfii Mountain dodder

native
Annual herb, Vine (parasitic)

Cycladenia humilis var. venusta Sacramento waxydogbane, Showy cycladenia

native
Perennial herb

Cycloloma atriplicifolium Winged pigweed

non-native
Annual herb

Cylindropuntia californica var. californica California pricklypear, Snake cholla

• rare native
Perennial herb (stem succulent)

Cylindropuntia californica var. californica

Cynosurus cristatus Crested dogstail grass, Crested dogtail grass

non-native
Perennial grass

Cyperus acuminatus Short pointed cyperus, Tapertip flatsedge

native
Annual grasslike herb

Cyperus fuscus Brown flatsedge

non-native
Annual grasslike herb

Cyperus iria Ricefield flatsedge

non-native
Annual grasslike herb

Cyperus laevigatus Smooth cyperus, Smooth flatsedge

native
Perennial grasslike herb

Cyperus parishii Parish's flatsedge

native
Perennial grasslike herb

Cypripedium parviflorum Lesser yellow lady's slipper

native
Perennial herb (rhizomatous)

Cypripedium parviflorum var. makasin Greater yellow lady's slipper

• rare native
Perennial herb (rhizomatous)

Cytisus proliferus Tree lucerne

• invasive non-native
Shrub

Dactyloctenium aegyptium Crows foot grass, Egyptian grass

non-native
Annual, Perennial grass

Dalea greggii Gregg's prairie clover

non-native
Perennial herb

Dalea ornata Blue mountain prairie clover, Ornate dalea

• rare native
Perennial herb

Deinandra arida Red rock tarplant

• rare native
Annual herb

Deinandra conjugens Otay tarplant

• rare native
Annual herb

Deinandra floribunda Tecate tarplant

• rare native
Annual herb

Deinandra halliana Hall's tarplant

• rare native
Annual herb

Deinandra increscens ssp. increscens Grassland tarweed

native
Annual herb

Deinandra pentactis Salinas river tarweed

native
Annual herb

Delphinium gypsophilum ssp. parviflorum Pinoche creek larkspur, Small flowered gypsum loving larkspur

• rare native
Perennial herb

Delphinium parryi ssp. eastwoodiae Eastwood's larkspur

• rare native
Perennial herb

Delphinium parryi ssp. maritimum Seaside larkspur

native
Perennial herb

Delphinium parryi ssp. purpureum Mt. pinos larkspur, San bernardino larkspur

• rare native
Perennial herb

Delphinium patens ssp. montanum Spreading larkspur, Zigzag larkspur

native
Perennial herb

Delphinium recurvatum Byron larkspur, Recurved larkspur

• rare native
Perennial herb

Delphinium scaposum Tall mountain larkspur

• rare native
Perennial herb

Delphinium stachydeum Spiked larkspur

• rare native
Perennial herb

Delphinium trolliifolium Columbian larkspur, Cow poison

native
Perennial herb

Delphinium variegatum ssp. kinkiense Royal larkspur, San clemente island larkspur

• rare native
Perennial herb

Delphinium variegatum ssp. thornei Thorne's royal larkspur

• rare native
Perennial herb

Dendromecon harfordii var. harfordii Channel island tree poppy

• rare native
Shrub

Dendromecon harfordii var. rhamnoides Island tree poppy, Tree poppy

• rare native
Shrub

Descurainia incisa ssp. incisa Mountain tansy mustard

native
Annual, Biennial herb

Dianthus deltoides Meadow pink

non-native
Perennial herb

Dianthus plumarius Feathered pink

non-native
Perennial herb

Dichondra micrantha Asian ponysfoot

non-native
Perennial herb

Didymodon norrisii Norris' beard moss

native
Moss

Dieteria asteroides Hoary aster

native
Perennial herb

Dieteria asteroides var. asteroides Hoary aster

native
Perennial herb

Dieteria asteroides var. lagunensis Mount laguna aster

• rare native
Perennial herb

Dieteria canescens var. ziegleri Ziegler's aster

• rare native
Perennial herb

Digitaria californica Arizona cottontop

native
Perennial grass

Digitaria californica var. californica Arizona cottontop

• rare native
Perennial grass

Digitaria ischaemum Smooth crabgrass

non-native
Annual grass

Diodia teres Poorjoe, Rough buttonweed

native
Annual herb

Diospyros virginiana Common persimmon

non-native
Tree

EBENACEAE

Diplacus aridus Low bush monkeyflower

• rare native
Shrub

Diplotaxis erucoides White wallrocket

non-native
Perennial herb

Dipterostemon capitatus ssp. lacuna-vernalis Vernal pool blue dicks

native
Perennial herb

Dipterostemon capitatus ssp. lacuna-vernalis

Dipterostemon capitatus ssp. pauciflorus Few flowered blue dicks

native

Dipterostemon capitatus ssp. pauciflorus

Ditaxis claryana Glandular ditaxis

• rare native
Perennial herb

Ditaxis serrata var. californica California ditaxis

• rare native
Perennial herb

Downingia bicornuta var. picta Doublehorn calicoflower, Mountain bristled downingia

native
Annual herb

Downingia elegans Elegant calicoflower, Elegant downingia

native
Annual herb

Downingia laeta Great basin calicoflower, Great basin downingia

• rare native
Annual herb

Draba cana Canescent draba

• rare native
Perennial herb

Draba monoensis Mono draba, White mtns. draba

• rare native
Perennial herb

Draba nemorosa Woodland draba

non-native
Annual herb

Draba paysonii Payson's draba

native
Perennial herb

Draba sharsmithii Mt. whitney draba, Sharsmith's draba

• rare native
Perennial herb

Draba sierrae Sierra draba

• rare native
Perennial herb

Draba subumbellata Mound draba, Parasol draba

• rare native
Perennial herb

Drosera aliciae Australian sundew

non-native
Perennial herb

Drosera capensis Cape sundew

non-native
Perennial herb

Drosera filiformis Threadleaf sundew

non-native
Perennial herb (carnivorous)

Drosera tracyi Tracy's sundew

non-native
Perennial herb

Drymocallis hansenii Yosemite woodbeauty

native
Perennial herb

Dryopteris filix-mas Male fern

• rare native
Fern (rhizomatous)

DRYOPTERIDACEAE

Dudleya abramsii ssp. bettinae San Luis Obispo serpentine dudleya

• rare native
Perennial herb

Dudleya alainae Banner dudleya

• rare native
Perennial herb

Dudleya anomala

non-native
Perennial herb

Dudleya attenuata Tapertip liveforever

native
Perennial herb

Dudleya attenuata ssp. attenuata Orcutt's dudleya

• rare native
Perennial herb

Dudleya attenuata ssp. orcuttii Orcutt's dudleya, Orcutt's liveforever

native
Perennial herb

Dudleya blochmaniae ssp. insularis Blochman's liveforever, Santa rosa island dudleya, Santa rosa island live forever

• rare native
Perennial herb

Dudleya cymosa ssp. crebrifolia San gabriel river dudleya

• rare native
Perennial herb

Dudleya gnoma Munchkin liveforever

• rare native
Perennial herb

Dudleya traskiae Santa barbara island dudleya, Santa barbara island live forever, Santa barbara island liveforever

• rare native
Perennial herb

Dudleya virens ssp. hassei Bright green dudleya

• rare native
Perennial herb

Duranta erecta Golden dewdrops

non-native
Shrub, Tree

Dysphania multifida Cut leaved goosefoot

non-native
Annual, Perennial herb

Dyssodia papposa Fetid marigold

non-native
Annual herb

Ebenopsis ebano Texas ebony

non-native
Tree, Shrub

Echinocereus engelmannii var. acicularis Engelmann's hedgehog cactus

native
Shrub (stem succulent)

Echinocereus engelmannii var. acicularis

Echinocereus engelmannii var. howei Howe's hedgehog cactus

• rare native
Shrub (stem succulent)

Echinochloa crus-pavonis Gulf cockspur grass

non-native
Annual grass

Echinochloa muricata Rough barnyard grass, Rough barnyardgrass

non-native
Annual grass

Echinops sphaerocephalus Globe thistle, Great globethistle

non-native
Perennial herb

Echium vulgare Common viper's bugloss

non-native
Shrub

Elatine brachysperma Short seed waterwort, Shortseed waterwort

native
Annual, Perennial herb

ELATINACEAE

Elatine californica California waterwort

native
Annual, Perennial herb

ELATINACEAE

Elatine chilensis Chilean waterwort

native
Annual, Perennial herb (aquatic)

ELATINACEAE

Eleocharis acicularis var. gracilescens Needle spike rush

native
Perennial grasslike herb

Eleocharis atropurpurea Purple spikerush

native
Annual grasslike herb

Eleocharis bernardina Fewflower spikerush

native
Perennial grasslike herb

Eleocharis bolanderi Bolander's spikerush

native
Perennial grasslike herb

Eleocharis engelmannii Engelmann's spikerush

native
Annual grasslike herb

Eleocharis engelmannii var. engelmannii Engelmann's spikerush

native
Annual grasslike herb

Eleocharis flavescens Yellow spikerush

native
Annual grasslike herb

Eleocharis flavescens var. flavescens Yellow spikerush

native
Annual grasslike herb

Eleocharis geniculata Bent spikerush, Canada spikesedge

native
Annual grasslike herb

Eleocharis obtusa Blunt spike rush, Blunt spikerush, Broad spiked spikerush

native
Annual grasslike herb

Eleocharis pachycarpa Black sand spikerush, Broad fruit spikerush

non-native
Perennial grasslike herb

Eleusine tristachya Three spiked goosegrass, Threespike goosegrass

non-native
Annual grass

Elymus canadensis Canada wild rye, Canada wildrye

non-native
Perennial grass

Elymus elymoides ssp. hordeoides Barley squirreltail

native
Perennial grass

Elymus elymoides var. hordeoides Barley squirreltail

native
Perennial grass

Elymus smithii Western wheat grass

native
Perennial grass

Emilia fosbergii Florida tasselflower

non-native
Annual herb

Emilia sonchifolia Lilac tasselflower

non-native
Annual herb

Empetrum nigrum Black crowberry

• rare native
Shrub

Encelia virginensis Encelia, Virgin river brittlebush, Virgin river encelia

native
Shrub

Enceliopsis nudicaulis var. corrugata Nakedstem sunray

• rare native
Perennial herb, Shrub

Enneapogon desvauxii Nine awned pappus grass, Nineawn pappusgrass

• rare native
Perennial grass

Ephedra torreyana Torrey's jointfir

• rare native
Shrub

EPHEDRACEAE

Epilobium canum ssp. angustifolium Hummingbird trumpet

native
Perennial herb

Epilobium canum ssp. garrettii Garrett's california fuchsia

native
Perennial herb

Epilobium cleistogamum Cleistogamous boisduvalia, Selfing willowherb

native
Annual herb

Epilobium glaberrimum ssp. fastigiatum Cluster stemmed willowherb, Glaucus willowherb, Smooth willowherb

native
Perennial herb

Epilobium lactiflorum Milkflower willowherb, White flowered willowherb

native
Perennial herb

Epilobium leptophyllum Bog willowherb, Slender leaved willowherb

non-native
Perennial herb

Epilobium nivium Snow mountain willowherb, Snow mtn. willowherb

• rare native
Perennial herb

Epipterygium tozeri Tozer's epipterygium moss

native
Moss

Equisetum palustre Marsh horsetail

• rare native
Fern (rhizomatous)

EQUISETACEAE

Eragrostis barrelieri Mediterranean lovegrass

non-native
Annual grass

Eragrostis pectinacea var. pectinacea Tufted lovegrass

native
Annual grass

Eragrostis pilosa Indian lovegrass

non-native
Annual grass

Eragrostis pilosa var. pilosa Indian lovegrass

non-native
Annual grass

Erechtites hieraciifolia American burnweed

non-native
Annual, Perennial herb

Eremogone aculeata Prickly sandwort

native
Perennial herb

Eremogone congesta var. congesta Capitate sandwort

native
Perennial herb

Eremogone congesta var. simulans Capitate sandwort

native
Perennial herb

Eremogone ferrisiae

native
Perennial herb

Eremogone macradenia var. arcuifolia Forest camp sandwort

native
Perennial herb

Eremothera boothii ssp. boothii Booth's evening-primrose

• rare native
Annual herb

Eriastrum luteum Yellow flowered eriastrum, Yellow woollystar

• rare native
Annual herb

Eriastrum pluriflorum ssp. albifaux Many flowered eriastrum

native
Annual herb

Eriastrum pluriflorum ssp. sherman-hoytiae Mrs. Hoyt's woolly-star

native
Annual herb

Eriastrum pluriflorum ssp. sherman-hoytiae

Ericameria brachylepis Boundary goldenbush, Chaparral goldenbush

native
Shrub

Ericameria cuneata var. macrocephala Cliff goldenbush, Laguna mtns. goldenbush

• rare native
Shrub

Ericameria laricifolia Turpentine brush, Turpentine bush

native
Shrub

Ericameria nauseosa var. ceruminosa Sharp bracted rabbitbrush

native
Shrub

Ericameria ophitidis Serpentine goldenbush, Serpentine macronema

• rare native
Shrub

Ericameria parryi var. monocephala Parry's rabbitbrush

native
Shrub

Erigeron annuus Annual fleabane, Eastern daisy fleabane

non-native
Annual herb

Erigeron blochmaniae Blochman's erigeron, Blochman's leafy daisy

• rare native
Perennial herb (rhizomatous)

Erigeron bloomeri var. nudatus Scabland fleabane, Waldo daisy

• rare native
Perennial herb

Erigeron breweri var. covillei Coville erigeron, Coville's erigeron, Coville's fleabane

native
Perennial herb

Erigeron breweri var. jacinteus Brewer's fleabane, San Jacinto Mountains daisy

• rare native
Perennial herb (rhizomatous)

Erigeron concinnus Navajo fleabane

native
Shrub (stem succulent)

Erigeron concinnus var. concinnus Navajo fleabane, Shaggy daisy, Tidy fleabane

native
Shrub (stem succulent)

Erigeron eatonii var. nevadincola Eaton's fleabane, Nevada daisy

• rare native
Perennial herb

Erigeron eatonii var. sonnei Eaton's fleabane, Sonne's daisy

native
Perennial herb

Erigeron elmeri Elmer's erigeron

native
Perennial herb

Erigeron flagellaris Trailing fleabane

native
Perennial herb

Erigeron foliosus var. confinis Leafy fleabane

native
Perennial herb

Erigeron formosissimus Beautiful fleabane

non-native
Perennial herb

Erigeron inornatus var. calidipetris California rayless fleabane, Hot rock daisy

• rare native
Perennial herb

Erigeron maniopotamicus Mad river fleabane daisy

• rare native
Perennial herb

Erigeron nivalis Northern daisy

• rare native
Perennial herb

Erigeron pumilus var. intermedius Shaggy fleabane

native
Perennial herb

Erigeron supplex Supple daisy, Supple fleabane

• rare native
Perennial herb

Erigeron utahensis Utah fleabane

• rare native
Perennial herb

Eriochloa aristata Bearded cupgrass

native
Annual grass

Eriochloa aristata var. aristata Pointed cupgrass

native
Annual grass

Eriochloa contracta Dense cupgrass, Prairie cupgrass

non-native
Annual grass

Eriodictyon capitatum Lompoc yerba santa

• rare native
Shrub

Eriodictyon trichocalyx var. lanatum Hairy yerba santa

native
Shrub

Eriogonum apiculatum San Jacinto buckwheat

native
Annual herb

Eriogonum apricum var. prostratum Irish hill buckwheat

• rare native
Perennial herb

Eriogonum argillosum Clay buckwheat, Clay loving buckwheat

• rare native
Annual herb

Eriogonum bifurcatum Forked buckwheat, Pahrump valley buckwheat

• rare native
Annual herb

Eriogonum breedlovei var. shevockii Needle's buckwheat, The needles buckwheat

• rare native
Perennial herb

Eriogonum cithariforme var. agninum Cithara buckwheat

native
Annual herb

Eriogonum collinum Hill buckwheat

• rare native
Annual herb

Eriogonum deflexum var. nevadense Flat topped buckwheat, Nevada buckwheat

native
Annual herb

Eriogonum elatum var. villosum Long hairy tall buckwheat, Tall woolly buckwheat

native
Perennial herb

Eriogonum evanidum Vanishing wild buckwheat

• rare native
Annual herb

Eriogonum giganteum var. compactum Santa barbara island buckwheat

• rare native
Shrub

Eriogonum giganteum var. formosum San clemente island buckwheat

• rare native
Shrub

Eriogonum grande var. timorum San nicolas island buckwheat

• rare native
Perennial herb

Eriogonum heermannii var. heermannii Heermann's buckwheat

native
Shrub

Eriogonum heracleoides var. heracleoides Parsnip flowered buckwheat, Parsnipflower buckwheat

• rare native
Perennial herb

Eriogonum heracleoides var. heracleoides

Eriogonum hirtellum Klamath mountain buckwheat, Klamath mtn. buckwheat

• rare native
Perennial herb (rhizomatous)

Eriogonum hookeri Hooker's buckwheat

native
Annual herb

Eriogonum kelloggii Kellogg's buckwheat, Red mountain buckwheat

• rare native
Perennial herb

Eriogonum marifolium var. cupulatum Marum leaved buckwheat

native
Shrub

Eriogonum microtheca var. alpinum Northern limestone buckwheat

native
Perennial herb

Eriogonum microthecum var. alpinum Alpine slender buckwheat

• rare native
Shrub

Eriogonum microthecum var. corymbosoides San bernardino buckwheat

native
Shrub

Eriogonum microthecum var. corymbosoides

Eriogonum microthecum var. johnstonii Johnston's buckwheat

• rare native
Shrub

Eriogonum microthecum var. schoolcraftii Schoolcraft's wild buckwheat

• rare native
Shrub

Eriogonum microthecum var. schoolcraftii

Eriogonum molestum Pineland buckwheat

native
Annual herb

Eriogonum nudum var. paralinum Del norte buckwheat

• rare native
Perennial herb

Eriogonum nudum var. regirivum Kings river buckwheat

• rare native
Perennial herb

Eriogonum nutans Dugway buckwheat

native
Annual herb

Eriogonum nutans var. nutans Dugway buckwheat, Nodding buckwheat

• rare native
Annual herb

Eriogonum ochrocephalum White woolly buckwheat, Whitewoolly buckwheat

native
Perennial herb

Eriogonum ochrocephalum var. ochrocephalum White woolly buckwheat, Whitewoolly buckwheat

• rare native
Perennial herb

Eriogonum ochrocephalum var. ochrocephalum

Eriogonum ordii Fort mojave buckwheat

native
Annual herb

Eriogonum ovalifolium var. depressum Cushion buckwheat

• rare native
Perennial herb

Eriogonum ovalifolium var. monarchense Monarch buckwheat

• rare native
Perennial herb

Eriogonum ovalifolium var. ovalifolium Cushion buckwheat

native
Perennial herb

Eriogonum pendulum Waldo buckwheat

• rare native
Perennial herb

Eriogonum prattenianum var. avium Kettle dome buckwheat, Nevada city buckwheat

• rare native
Perennial herb

Eriogonum prociduum Prostrate buckwheat

• rare native
Perennial herb

Eriogonum pyrolifolium var. coryphaeum Shasta buckwheat

native
Perennial herb, Shrub

Eriogonum sphaerocephalum var. sphaerocephalum Rock buckwheat, Round headed buckwheat

native
Perennial herb

Eriogonum sphaerocephalum var. sphaerocephalum

Eriogonum temblorense Temblor buckwheat

• rare native
Annual herb

Eriogonum thornei Thorne's buckwheat

• rare native
Perennial herb

Eriogonum umbellatum var. chlorothamnus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. glaberrimum Green buckwheat

• rare native
Perennial herb

Eriogonum umbellatum var. goodmanii Goodman's buckwheat, Serpentine sulphur buckwheat

native
Perennial herb

Eriogonum umbellatum var. lautum Scott valley buckwheat

• rare native
Perennial herb

Eriogonum umbellatum var. minus Alpine sulfur flowered buckwheat, Alpine sulphur flower buckwheat

• rare native
Perennial herb

Eriogonum wrightii var. membranaceum Bastardsage, Wright s buckwheat, Wright's buckwheat

native
Perennial herb, Shrub

Eriogonum wrightii var. wrightii Bastardsage, Wright's buckwheat

native
Perennial herb, Shrub

Eriophyllum confertiflorum var. tanacetiflorum Golden yarrow, Tansy yarrow

• rare native
Shrub

Eriophyllum confertiflorum var. tanacetiflorum

Eriophyllum congdonii Congdon's eriophyllum, Congdon's woolly sunflower

• rare native
Annual herb

Eriophyllum lanatum var. aphanactis Common woolly sunflower

native
Perennial herb

Eriophyllum lanatum var. obovatum Common woolly sunflower, Southern sierra woolly sunflower

• rare native
Perennial herb

Eriophyllum nubigenum Yosemite eriophyllum, Yosemite woolly sunflower

• rare native
Annual herb

Erodium cygnorum Australian filaree, Australian stork's bill

non-native
Annual herb

Eruca vesicaria Rocketsalad

non-native
Annual, Biennial herb

Eruca vesicaria ssp. sativa Garden rocket, Rocketsalad

non-native
Annual, Biennial herb

Erucastrum gallicum Common dogmustard

non-native
Annual herb

Eryngium aristulatum var. hooveri Hoover's button celery, Hoover's eryngo

• rare native
Annual, Perennial herb

Eryngium mathiasiae Mathias' button celery, Mathias' eryngo

native
Perennial herb

Eryngium pinnatisectum Tuolumne button celery, Tuolumne eryngo

• rare native
Annual, Perennial herb

Eryngium racemosum Delta button celery, Delta eryngo

• rare native
Annual, Perennial herb

Eryngium vaseyi var. vallicola Coyote thistle

native
Perennial herb

Eryngium vaseyi var. vaseyi Coyote thistle

native
Perennial herb

Erysimum capitatum var. angustatum Contra costa wallflower

• rare native
Perennial herb

Erysimum capitatum var. lompocense San luis obispo wallflower

• rare native
Perennial herb

Erysimum cheiranthoides Wormseed mustard, Wormseed wallflower

non-native
Annual herb

Erysimum cheiri Aegean wallflower, Common wallflower

non-native
Perennial herb

Erythranthe arenaria

native
Annual herb

Erythranthe arenicola

native
Annual herb

Erythranthe arvensis

native
Annual herb

Erythranthe breviflora Short flowered monkeyflower

native
Annual herb

Erythranthe corallina

native
perennial

Erythranthe cordata

native
Annual herb

Erythranthe discolor

native
Annual herb

Erythranthe exigua San Bernardino Mountains monkeyflower

• rare native
Annual herb

Erythranthe grayi Gray's monkeyflower

• rare native
Annual herb

Erythranthe hardhamiae Santa lucia monkeyflower

• rare native
Annual herb

Erythranthe pardalis Pennell's panther

native
Perennial herb

Erythranthe purpurea little purple monkeyflower

• rare native
Annual herb

Erythranthe utahensis Utah monkeyflower

• rare native
Perennial herb

Erythronium citrinum var. roderickii Lemon colored fawn lily, Roderick's fawnlily

• rare native
Perennial herb (bulb)

Erythronium howellii Howell's fawn lily, Howell's fawnlily

• rare native
Perennial herb (bulb)

Erythronium taylorii Taylor's fawnlily

• rare native
Perennial herb (bulb)

Eschscholzia californica ssp. mexicana Desert california poppy

native
Annual, Perennial herb

Eschscholzia minutiflora ssp. minutiflora Pygmy poppy

native
Annual herb

Eschscholzia minutiflora ssp. minutiflora

Eucalyptus calophylla Redgum

non-native
Tree

Eucalyptus microtheca Coolabah

non-native
Tree

Eucalyptus pulchella

non-native
Tree

Eucalyptus rudis Western australian floodedgum

non-native
Tree

Eucalyptus tereticornis Forest red gum, Forest redgum

non-native
Tree

Eucalyptus torquata Coral gum

non-native
Tree

Eucalyptus viminalis Manna gum

non-native
Tree

Euchiton gymnocephalus Creeping cudweed

non-native
Perennial herb

Euchiton involucratus

non-native
Annual herb

Euchiton japonicus Father and child plant

non-native
Annual herb

Euchiton sphaericus Tropical creeping cudweed

non-native
Annual herb

Euclidium syriacum Syrian mustard

non-native
Annual herb

Euonymus fortunei Winter creeper

non-native
Tree, Shrub

CELASTRACEAE

Euphorbia abramsiana Abrams' spurge

• rare native
Annual herb

Euphorbia arizonica Arizona spurge

• rare native
Perennial herb

Euphorbia cyathophora Fire on the mountain

non-native
Annual, Perennial herb

Euphorbia davidii David's spurge

non-native
Perennial herb

Euphorbia dentata Toothed spurge

non-native
Annual herb

Euphorbia exstipulata Squareseed spurge

native
Annual herb

Euphorbia exstipulata var. exstipulata Clark Mountain spurge

• rare native
Annual herb

Euphorbia glyptosperma Ridge-seeded spurge

native
Annual herb

Euphorbia heterophylla Mexican fireplant

non-native
Annual, Perennial herb

Euphorbia hooveri Hoover's spurge

• rare native
Annual herb

Euphorbia marginata Snow on the mountain

non-native
Annual herb

Euphorbia nutans Eyebane spurge

non-native
Annual herb

Euphorbia ocellata ssp. rattanii Stony creek spurge

• rare native
Annual herb

Euphorbia parryi Parry's spurge

• rare native
Annual herb

Euphorbia pediculifera Carrizo mountain sandmat

native
Perennial herb

Euphorbia platysperma Flat-seeded spurge

• rare native
Annual herb

Euphorbia pulcherrima Poinsettia

non-native
Shrub

Euphorbia revoluta Revolute spurge

• rare native
Annual herb

Euphorbia serpillifolia ssp. hirtula Hairy thyme leafed spurge

native
Annual, Perennial herb

Euphorbia serrata Saw toothed spurge, Serrate spurge

non-native
Perennial herb

Euphorbia vallis-mortae Death valley sandmat

• rare native
Perennial herb

Euphrosyne acerosa Copperwort

• rare native
Perennial herb

Euryops pectinatus Golden daisy bush

non-native
Shrub

Fagopyrum esculentum Domestic buckwheat

non-native
Annual herb

Fatoua villosa Hairy crabweed

non-native
Annual herb

MORACEAE

Festuca ammobia Sand fescue

native
Perennial grass

Festuca arvernensis Field fescue

non-native
Perennial grass

Festuca brachyphylla ssp. breviculmis Short leaved fescue

native
Perennial grass

Festuca ovina Sheep fescue

non-native
Perennial grass

Festuca pratensis Meadow fescue

non-native
Perennial grass

Festuca rigida Rigid italian rye grass

non-native
Annual grass

Festuca rubra ssp. pruinosa Red fescue

native
Perennial grass

Festuca rubra ssp. rubra Red fescue

native
Perennial grass

Festuca saximontana Rocky mountain fescue

native
Perennial grass

Festuca trachyphylla Hard fescue, Rough leaved fescue

non-native
Perennial grass

Ficus palmata Punjab fig

non-native
Shrub

MORACEAE

Fimbristylis autumnalis Slender fimbry

non-native
Annual grasslike herb

Fimbristylis vahlii Vahl's fimbristylis, Vahl's fimbry

native
Annual grasslike herb

Fissidens aphelotaxifolius Fissidens moss

• rare native
Moss

FISSIDENTACEAE

Fissidens sublimbatus Fissidens moss

native
Moss

FISSIDENTACEAE

Floerkea proserpinacoides False mermaidweed

native
Annual herb

Frangula californica ssp. crassifolia Serpentine hoary coffeeberry

native
Shrub

Frangula californica ssp. ursina Desert hoary coffeeberry

native
Shrub

Frangula rubra ssp. modocensis Modoc buckthorn

native
Shrub

Frangula rubra ssp. yosemitana Yosemite buckthorn

native
Shrub

Frankenia pulverulenta European sea heath

non-native
Perennial herb

FRANKENIACEAE

Frasera albomarginata Desert frasera

native
Perennial herb

Frasera albomarginata var. induta Clark mountain green-gentian

• rare native
Perennial herb

Frasera umpquaensis Umpqua green-gentian

• rare native
Perennial herb

Fraxinus parryi Chaparral ash

• rare native
Shrub

Fritillaria biflora var. ineziana Hillsborough chocolate lily

• rare native
Perennial herb (bulb)

Fritillaria gentneri Gentner's fritillary

• rare native
Perennial herb

Fuchsia hybrida Hybrid fuchsia

non-native
Shrub

Fuchsia paniculata Shrubby fuchsia

non-native
Shrub

Funastrum crispum Wavyleaf twinevine

• rare native
Perennial herb

Gaillardia aristata Blanketflower, Common gaillardia, Common Indian blanket

non-native
Perennial herb

Galeopsis tetrahit Brittlestem hempnettle

non-native
Annual herb

Galium angustifolium ssp. borregoense Borrego bedstraw

• rare native
Perennial herb

Galium angustifolium ssp. gabrielense San antoinio canyon bedstraw, San antonio canyon bedstraw

• rare native
Perennial herb

Galium angustifolium ssp. gracillimum Narrow leaved bedstraw, Slender bedstraw

• rare native
Perennial herb

Galium angustifolium ssp. jacinticum San jacinto bedstraw, San jacinto mtns. bedstraw

• rare native
Perennial herb

Galium angustifolium ssp. nudicaule Naked stem bedstraw, Narrowleaf bedstraw

native
Perennial herb

Galium angustifolium ssp. onycense Onyx peak bedstraw

• rare native
Perennial herb

Galium argense Argus bedstraw

native
Perennial herb

Galium boreale Northern bedstraw

native
Perennial herb

Galium buxifolium Box bedstraw

• rare native
Shrub

Galium californicum ssp. maritimum Coastal california bedstraw

native
Perennial herb

Galium californicum ssp. primum California bedstraw

• rare native
Perennial herb

Galium californicum ssp. sierrae El dorado bedstraw

• rare native
Perennial herb

Galium catalinense Santa catalina island bedstraw

native
Perennial herb

Galium catalinense ssp. acrispum San clemente island bedstraw, Santa clemente island bedstraw

• rare native
Shrub

Galium catalinense ssp. catalinense Santa catalina island bedstraw

• rare native
Shrub

Galium clementis Santa Lucia bedstraw

• rare native
Perennial herb

Galium cliftonsmithii Santa barbara bedstraw

• rare native
Perennial herb

Galium divaricatum Lamarck's bedstraw

non-native
Annual herb

Galium glabrescens ssp. modocense Modoc bedstraw

• rare native
Perennial herb

Galium grande San gabriel bedstraw

• rare native
Shrub

Galium hardhamiae Hardham's bedstraw

• rare native
Perennial herb

Galium hilendiae ssp. hilendiae Hilend's bedstraw

native
Perennial herb

Galium hilendiae ssp. kingstonense Kingston mountains bedstraw, Kingston mtns. bedstraw

• rare native
Perennial herb

Galium hypotrichium ssp. ebbettsense Alpine bedstraw, Ebbett's bedstraw

native
Perennial herb

Galium hypotrichium ssp. hypotrichium Alpine bedstraw

native
Perennial herb

Galium hypotrichium ssp. subalpinum Subalpine bedstraw

native
Perennial herb

Galium jepsonii Jepson's bedstraw

• rare native
Perennial herb (rhizomatous)

Galium johnstonii Johnston's bedstraw

• rare native
Perennial herb

Galium magnifolium Large leaf bedstraw, Largeleaf bedstraw

native
Perennial herb

Galium mollugo False baby's breath, Hedge bedstraw, Wild madder

non-native
Perennial herb

Galium munzii Munz's bedstraw

• rare native
Perennial herb

Galium proliferum Desert bedstraw, Limestone bedstraw

• rare native
Annual herb

Galium saxatile Heath bedstraw, Rock bedstraw

non-native
Perennial herb

Galium schultesii Schultes' bedstraw

non-native
Perennial herb

Galium sparsiflorum ssp. glabrius Sequoia bedstraw

native
Perennial herb

Galium tricornutum Rough bedstraw, Roughfruit corn bedstraw

non-native
Annual herb

Galium trifidum ssp. subbiflorum Threepetal bedstraw

native
Perennial herb

Galium verum Ladie's bedstraw, Yellow spring bedstraw

non-native
Vine

Galium wrightii Wright's bedstraw, Wright's galium

• rare native
Perennial herb

Gamochaeta argyrinea Silver Cudweed

native
Perennial herb

Gamochaeta coarctata Gray everlasting

non-native
Perennial herb

Gamochaeta stachydifolia

non-native
Perennial herb

Gamochaeta stagnalis Desert cudweed

non-native
Perennial herb

Gaudinia fragilis Fragile oat

non-native
Annual, Biennial grass

Gayophytum heterozygum Zig zag gayophytum, Zigzag groundsmoke

native
Annual herb

Gayophytum oligospermum Pinegrove gayophytum, Pinegrove groundsmoke

native
Annual herb

Genista canariensis Canary broom, Canary island broom

non-native
Shrub

Genista maderensis Madeira dyer's greenweed, Madera broom

non-native
Shrub

Genista stenopetala Leafy broom, Narrow petaled broom

non-native
Shrub

Gentiana affinis var. parvidentata Small toothed prairie gentian

• rare native
Perennial herb

Gentiana fremontii Moss gentian

• rare native
Annual herb

Gentiana prostrata Pygmy gentian

• rare native
Perennial herb

Gentiana sceptrum King's scepter gentian

native
Perennial herb

Gentiana setigera Mendocino gentian

• rare native
Perennial herb

Geothallus tuberosus Campbell's liverwort

• rare native
Liverwort

SPHAEROCARPACEAE

Geranium aequale

non-native
Perennial herb

Geranium bicknellii Bicknell's cranesbill, Bicknell's geranium

native
Annual herb

Geranium columbinum Longstalk cranesbill

non-native
Annual herb

Geranium potentilloides Cinquefoil geranium, New zealand geranium

non-native
Perennial herb

Geranium pusillum Small flowered geranium, Small geranium

non-native
Annual herb

Geranium pyrenaicum Hedgerow geranium

non-native
Perennial herb

Geranium retrorsum New zealand geranium

non-native
Perennial herb

Geum aleppicum Aleppo avens, Yellow avens

• rare native
Perennial herb

Geum macrophyllum var. macrophyllum Largeleaf avens

native
Perennial herb

Gilia aliquanta ssp. aliquanta Puff calyx gilia, Puffcalyx gilia

native
Annual herb

Gilia austro-occidentalis Southwestern gilia

native
Annual herb

Gilia cana ssp. bernardina Showy gilia

native
Annual herb

Gilia latiflora ssp. cuyamensis Cuyama gilia, Hollyleaf gilia

• rare native
Annual herb

Gilia latiflora ssp. elongata Broad flowered gilia, Hollyleaf gilia

native
Annual herb

Gilia leptantha ssp. leptantha Fine flower gilia, Fineflower gilia

• rare native
Annual herb

Gilia leptantha ssp. pinetorum Fineflower gilia, Pine gilia

• rare native
Annual herb

Gilia leptantha ssp. transversa Fine flower gilia, Fineflower gilia

native
Annual herb

Gilia malior Scrub gilia

native
Annual herb

Gilia mexicana El paso gilia

• rare native
Annual herb

Gilia nevinii Nevin's gilia

• rare native
Annual herb

Gilia ochroleuca ssp. bizonata Volcanic gilia

native
Annual herb

Gilia ochroleuca ssp. exilis Volcanic gilia

native
Annual herb

Gilia ochroleuca ssp. lanosa Sisquoc gilia

• rare native
Annual herb

Gilia tenuiflora ssp. amplifaucalis Greater yellowthroat gilia, Spreading slender flowered gilia

• rare native
Annual herb

Gilia tenuiflora ssp. hoffmannii Hoffman's gilia, Hoffman's slender flowered gilia, Hoffmann's slender flowered gilia

• rare native
Annual herb

Gilia yorkii Boyden cave gilia

• rare native
Annual herb

Githopsis diffusa ssp. filicaulis Mission canyon bluecup, San gabriel bluecup

• rare native
Annual herb

Githopsis diffusa ssp. robusta San gabriel bluecup

native
Annual herb

Githopsis pulchella var. glabra Sierra bluecup

native
Annual herb

Githopsis pulchella var. pulchella Largeflower bluecup

native
Annual herb

Githopsis tenella Tube flower bluecup, Tubeflower bluecup

• rare native
Annual herb

Gladiolus italicus Italian gladiolus

non-native
Perennial herb

Gladiolus tristis Ever flowering gladiolus

non-native
Perennial herb (bulb)

Glandularia peruviana Peruvian mock vervain

non-native
Perennial herb

Glechoma hederacea Ground ivy

non-native
Perennial herb

Glossopetalon pungens Dwarf greasebush, Pungent glossopetalon, Smooth greasewood

• rare native
Shrub

CROSSOSOMATACEAE

Glyceria borealis Northern mannagrass, Small floating mannagrass

native
Perennial grass

Glyceria fluitans Water mannagrass

non-native
Perennial grass

Glyceria grandis American mannagrass

• rare native
Perennial grass (rhizomatous)

Glyceria striata Fowl mannagrass

native
Perennial grass

Gossypium hirsutum Upland cotton

non-native
Annual herb,Perennial herb,Tree,Shrub

Graphis saxorum Baja rock lichen

• rare native
Lichen

GRAPHIDACEAE

Gratiola heterosepala Boggs lake hedge hyssop

• rare native
Annual herb

Greeneocharis circumscissa var. rosulata rosette cushion cryptantha

• rare native
Annual herb

Greeneocharis circumscissa var. rosulata

Grimmia vaginulata Vaginulate grimmia

• rare native
Moss

GRIMMIACEAE

Grindelia fraxinipratensis Ash meadows gumplant

• rare native
Perennial herb

Grindelia hallii San diego gumplant

• rare native
Perennial herb

Grindelia hirsutula var. maritima Coastal gumweed, San francisco gum plant, San francisco gumplant

• rare native
Perennial herb

Grindelia papposa Spanish gold

non-native
Annual, Biennial herb

Grusonia pulchella Sagebrush cholla

• rare native
Shrub (stem succulent)

Guilleminea densa Small matweed

non-native
Perennial herb

Guilleminea densa var. aggregata Guilleminea, Small matweed

non-native
Perennial herb

Guizotia abyssinica Ramtilla

non-native
Annual herb

Gypsophila elegans Showy baby's breath

non-native
Annual, Biennial herb

Gypsophila scorzonerifolia Baby's breath, Garden babysbreath

non-native
Perennial herb

Hackelia cusickii Cusick stickweed, Cusick's stickseed

• rare native
Perennial herb

Hackelia floribunda Many flowered stickseed, Manyflower stickseed

native
Perennial herb

Hackelia setosa Bristly stickseed

native
Perennial herb

Halimium lasianthum Lisbon false sun rose

non-native
Shrub

Halimodendron halodendron Common salttree, Russian salt tree

non-native
Shrub

Halodule wrightii Shoal grass

non-native
Perennial herb

CYMODOCEACEAE

Haloragis erecta Erect seaberry, Sea berry

non-native
Shrub

HALORAGACEAE

Haplodontium tehamense Lassen peak copper moss

• rare native
Moss

Hazardia cana Guadalupe hazardia, Island hazardia, San clemente island hazardia

• rare native
Shrub

Hazardia orcuttii Orcutt's bristleweed, Orcutt's hazardia

• rare native
Shrub

Hebe speciosa New zealand hebe, Showy hebe

non-native
Shrub

Hebe Xfranciscana Hebe

non-native
Shrub

Hedeoma drummondii Drummond's false pennyroyal

• rare native
Shrub (stem succulent)

Hedera hibernica Atlantic ivy

non-native
Vine

ARALIACEAE

Hedwigia detonsa

native
Moss

HEDWIGIACEAE

Hedwigia stellata

native
Moss

HEDWIGIACEAE

Hedychium flavescens Cream garland lily

non-native
Perennial herb

ZINGIBERACEAE

Helenium amarum Yellow sneezeweed, Yellowdicks

non-native
Annual herb

Helenium amarum var. amarum Yellowdicks

non-native
Annual herb

Helianthus ciliaris Texas blueweed

non-native
Perennial herb

Helianthus cusickii Cusick's sunflower

native
Perennial herb

Helianthus inexpectatus Newhall sunflower

• rare native
Perennial herb

Helianthus nuttallii ssp. parishii Los angeles sunflower, Parish's sunflower

• rare native
Perennial herb (rhizomatous)

Helianthus petiolaris ssp. petiolaris Prairie sunflower

non-native
Perennial herb

Heliomeris hispida Hairy golden eye, Rough false goldeneye

non-native
Annual herb

Heliotropium convolvulaceum Phlox heliotrope

native
Annual herb

HELIOTROPIACEAE

Heliotropium convolvulaceum var. californicum Morning glory heliotrope, Phlox heliotrope

native
Annual herb

HELIOTROPIACEAE

Heliotropium convolvulaceum var. californicum

Heliotropium supinum Dwarf heliotrope

non-native
Annual herb

HELIOTROPIACEAE

Helodium blandowii Blandow's helodium moss

native
Moss

HELODIACEAE

Heracleum mantegazzianum Giant hogweed

non-native
Perennial herb

Herissantia crispa Bladdermallow, Curly herissantia

• rare native
Annual, Perennial herb

Hesperolinon adenophyllum Glandular dwarf flax, Glandular western flax

• rare native
Annual herb

Hesperolinon didymocarpum Lake county dwarf flax, Lake county western flax

• rare native
Annual herb

Hesperolinon drymarioides Drymaria like western flax, Drymary dwarf flax

• rare native
Annual herb

Hesperolinon tehamense Paskenta grade dwarf flax, Tehama county western flax

• rare native
Annual herb

Heteranthemis viscidihirta Sand chrysanthemum

non-native
Annual herb

Heteranthera dubia Grassleaf mudplantain, Water star grass

• rare native
Perennial herb

PONTEDERIACEAE

Heteranthera rotundifolia Roundleaf mudplantain

non-native
Annual herb

PONTEDERIACEAE

Heteropogon contortus Tanglehead

native
Perennial grass

Heterotheca monarchensis Sequoia false goldenaster

• rare native
Perennial herb

Heterotheca subaxillaris Camphorweed

native
Perennial herb

Heterotheca subaxillaris ssp. latifolia Camphor weed

native
Annual, Perennial herb

Heterotheca villosa var. scabra Hairy false goldenaster, Rough hairy goldenaster

native
Perennial herb

Heuchera abramsii Abrams's alumroot, San gabriel alumroot

• rare native
Perennial herb (rhizomatous)

Heuchera hirsutissima Shaggy haired alumroot, Shaggyhair alumroot

• rare native
Perennial herb (rhizomatous)

Heuchera parishii Mill creek alumroot, Parish's alumroot

• rare native
Perennial herb (rhizomatous)

Heuchera rubescens var. versicolor Pink alumroot, San diego county alumroot

• rare native
Perennial herb (rhizomatous)

Hieracium aurantiacum Orange flowered hawkweed, Orange hawkweed

non-native
Perennial herb

Hieracium parryi Scouler's woollyweed

native
Perennial herb

Holcus mollis Creeping velvetgrass

non-native
Perennial grass

Hordeum arizonicum Arizona barley, Arizona foxtail

native
Annual grass

Horkelia congesta Sierra horkelia

native
Perennial herb

Horkelia congesta var. nemorosa Josephine horkelia

• rare native
Perennial herb

Horkelia daucifolia var. daucifolia Carrot leafed horkelia

native
Perennial herb

Horkelia fusca var. brownii Tawny horkelia

native
Perennial herb

Horkelia howellii Howell's horkelia

native
Perennial herb

Horkelia sericata Howell's horkelia, Silky horkelia

• rare native
Perennial herb

Horsfordia alata Pink velvet mallow, Pink velvetmallow

• rare native
Shrub

Hosackia crassifolia var. otayensis Otay mountain hosackia

• rare native
Perennial herb

Hosackia incana Woolly lotus

native
Perennial herb

Hosackia yollabolliensis Yolla bolly mtns. bird's-foot trefoil

• rare native
Perennial herb

Hulsea mexicana Mexican alpinegold, Mexican hulsea

• rare native
Annual, Perennial herb

Humulus lupulus Common hop, Hops

non-native
Perennial herb

CANNABACEAE

Hunnemannia fumariifolia Mexican tulip poppy

non-native
Perennial herb

Hydrilla verticillata Hydrilla, Waterthyme

• invasive non-native
Perennial herb

Hydrocharis morsus-ranae Common frogbit

non-native
Perennial herb

Hydrophyllum tenuipes Pacific waterleaf

native
Perennial herb

Hymenopappus filifolius var. eriopodus Fineleaf hymenopappus, Hairy podded columbia cutleaf

• rare native
Perennial herb

Hymenopappus filifolius var. megacephalus Fineleaf hymenopappus, Large headed columbia cutleaf

native
Perennial herb

Hymenopappus filifolius var. megacephalus

Hymenothrix dissecta Ragged leaf bahia

native
Perennial herb

Hymenothrix loomisii Loomis' thimblehead

non-native
Annual, Perennial herb

Hymenothrix wrightii Wright's thimblehead

• rare native
Perennial herb

Hymenoxys lemmonii Lemmon's goldflower, Lemmon's rubberweed

• rare native
Perennial herb

Hymenoxys odorata Bitter rubberweed, Fragrant bitter weed

• rare native
Annual herb

Hyparrhenia hirta Thatching grass

• invasive non-native
Perennial grass

Hypericum formosum St john's wort

native
Perennial herb

HYPERICACEAE

Hypericum hookerianum Hooker's st. johnswort

non-native
Shrub

HYPERICACEAE

Hypogymnia heterophylla Tube lichen

native
Lichen

PARMELIACEAE

Hypogymnia schizidiata Island rock lichen

• rare native
Lichen

PARMELIACEAE

Impatiens capensis Jewelweed

non-native
Perennial herb

BALSAMINACEAE

Imperata brevifolia California satintail

• rare native
Perennial grass

Inula helenium Elecampane inula

non-native
Perennial herb

Ionopsidium acaule Diamond flower, False diamondflower

non-native
Annual herb

Ipheion uniflorum Spring star flower

non-native
Perennial herb

Ipomoea aquatica Swamp morning glory

• invasive non-native
Perennial herb, Vine

Ipomoea hederacea Ivyleaf morning glory

non-native
Annual herb, Vine

Ipomoea lacunosa Whitestar

non-native
Annual herb, Vine

Ipomoea nil Ivy morning glory, Whiteedge morning glory

non-native
Annual herb, Vine

Ipomoea triloba Little bell morning glory, Littlebell

non-native
Annual herb, Vine

Ipomopsis effusa Baja california ipomopsis

• rare native
Annual herb

Ipomopsis tenuifolia Slender leaved ipomopsis, Slenderleaf skyrocket

• rare native
Perennial herb

Iris bracteata Siskiyou iris

• rare native
Perennial herb (rhizomatous)

Iris hartwegii ssp. columbiana Rainbow iris, Tuolumne iris

• rare native
Perennial herb (rhizomatous)

Iris orientalis Yellowband iris

non-native
Perennial herb

Iris sibirica Siberian iris

non-native
Perennial herb (rhizomatous)

Iris spuria Seashore iris

non-native
Perennial herb (rhizomatous)

Iris tenax ssp. klamathensis Klamath iris, Orleans iris

• rare native
Perennial herb (rhizomatous)

Iris tenuissima ssp. purdyiformis Longtube iris, Purdy's iris, Slender iris

native
Perennial herb

Isocoma menziesii var. decumbens Decumbent goldenbush, Menzies' goldenbush

• rare native
Shrub

Isoetes echinospora Spiny spored quillwort

native

ISOETACEAE

Isolepis setacea Bristleleaf bulrush

non-native
Perennial grasslike herb

Ivesia arizonica Rock whitefeather

native
Perennial herb

Ivesia arizonica var. arizonica Arizona whitefeather, Yellow ivesia

• rare native
Perennial herb

Ivesia baileyi var. baileyi Bailey's ivesia

• rare native
Perennial herb

Ivesia callida Tahquitz ivesia, Tahquitz mousetail

• rare native
Perennial herb

Ivesia paniculata Ash creek ivesia, Ash creek mousetail

• rare native
Perennial herb

Ivesia patellifera Kingston mountain mousetail, Kingston mtns. ivesia

• rare native
Perennial herb

Jaffueliobryum wrightii Wright's jaffueliobryum moss

• rare native
Moss

GRIMMIACEAE

Jarava plumosa South american rice grass

non-native
Perennial grass

Jasminum multiflorum Star jasmine

non-native
Vine, Shrub

Jepsonia heterandra Foothill jepsonia

• rare native
Perennial herb

Johanneshowellia puberula Red creek buckwheat

• rare native
Annual herb

Johnstonella angelica Angelic johnstonella

native
Annual herb

Juncus ambiguus Saline toad rush, Seasice rush

native
Annual grasslike herb

Juncus brachyphyllus Short leaved rush, Tuftedstem rush

native
Perennial grasslike herb

Juncus bryoides Moss rush

native
Annual grasslike herb

Juncus bulbosus Bulbous rush

non-native
Perennial grasslike herb

Juncus capillaris Hairystem dwarf rush, Slender stemmed dwarf rush

native
Annual grasslike herb

Juncus covillei Coville's rush

native
Perennial grasslike herb

Juncus cyperoides Forbestown rush, Sedge rush

non-native
Perennial grasslike herb

Juncus dichotomus Forked rush

non-native
Perennial grasslike herb

Juncus diffusissimus Slim podded rush, Slimpod rush

non-native
Perennial grasslike herb

Juncus digitatus Finger rush

• rare native
Perennial grasslike herb

Juncus drummondii Drummond's rush

native
Perennial grasslike herb

Juncus dubius Dubius rush, Mariposa rush

native
Perennial grasslike herb

Juncus dudleyi Dudley's rush

• rare native
Perennial grasslike herb

Juncus duranii Duran's rush

• rare native
Perennial grasslike herb (rhizomatous)

Juncus effusus ssp. austrocalifornicus Common bog rush

native
Perennial grasslike herb

Juncus effusus ssp. effusus Common rush

non-native
Perennial grasslike herb

Juncus exiguus Klamath or weak rush

native
Perennial grasslike herb

Juncus falcatus ssp. falcatus Falcate rush

native
Perennial grasslike herb

Juncus hemiendytus var. hemiendytus Herman's dwarf rush, Vernal pool rush

native
Annual grasslike herb

Juncus howellii Howell's rush

native
Perennial grasslike herb

Juncus interior Inland rush

• rare native
Perennial grasslike herb

Juncus kelloggii Kellogg's dwarf rush

native
Annual grasslike herb

Juncus leiospermus Red bluff dwarf rush

native
Annual grasslike herb

Juncus leiospermus var. ahartii Ahart's dwarf rush

• rare native
Annual grasslike herb

Juncus leiospermus var. leiospermus Red bluff dwarf rush

• rare native
Annual grasslike herb

Juncus longistylis Long styled rush, Longstyle rush

native
Perennial grasslike herb

Juncus luciensis Santa lucia dwarf rush, Santa lucia rush

• rare native
Annual grasslike herb

Juncus marginatus Grassleaf rush

native
Perennial grasslike herb (rhizomatous)

Juncus nevadensis var. inventus Dune rush

• rare native
Perennial grasslike herb

Juncus nevadensis var. nevadensis Nevada or sierran rush

native
Perennial grasslike herb

Juncus nodosus Knotted rush

• rare native
Perennial grasslike herb (rhizomatous)

Juncus regelii Regel's rush

• rare native
Perennial grasslike herb (rhizomatous)

Juncus saximontanus Rocky mountain rush

native
Perennial grasslike herb

Juncus supiniformis Hair leaved rush, Hairyleaf rush

• rare native
Perennial grasslike herb (rhizomatous)

Juncus tiehmii Nevada rush, Tiehm's rush

native
Annual grasslike herb

Juncus triformis Yosemite dwarf rush

native
Annual grasslike herb

Juncus uncialis Inch high dwarf rush, Twelfth rush

native
Annual grasslike herb

Juncus usitatus

non-native
Perennial grasslike herb

Juniperus scopulorum Rocky mountain juniper

non-native
Tree

CUPRESSACEAE

Kallstroemia grandiflora Arizona caltrop, Arizona poppy

non-native
Annual herb

ZYGOPHYLLACEAE

Kallstroemia parviflora Few flowered caltrop, Warty caltrop

• rare native
Annual herb

ZYGOPHYLLACEAE

Keckiella ternata var. septentrionalis Northern blue stemmed keckiella

native
Shrub

Kobresia myosuroides Bellardi bog sedge

• rare native
Perennial grasslike herb (rhizomatous)

Koeberlinia spinosa var. tenuispina Crown of thorns

• rare native
Shrub

KOEBERLINIACEAE

Koelreuteria elegans Flamegold

non-native
Tree

Lablab purpureus Hyacinthbean

non-native
Vine

Lactuca canadensis Canada lettuce, Canada wild lettuce

non-native
Perennial herb

Lactuca ludoviciana Biannual lettuce, Louisiana wild lettuce

non-native
Perennial herb

Lactuca sativa Garden lettuce

non-native
Annual herb

Lactuca tatarica Blue lettuce

native
Perennial herb

Lactuca tatarica ssp. pulchella Blue lettuce

native
Perennial herb

Lagerstroemia indica Crapemyrtle

non-native
Tree, Shrub

LYTHRACEAE

Lagophylla dichotoma Forked hareleaf

• rare native
Annual herb

Lampranthus coccineus Redflush

non-native
Perennial herb

AIZOACEAE

Landoltia punctata Dotted duckmeat

native
Annual, Perennial herb

Lantana urticoides West indian shrubverbena

native
Shrub

Laportea aestuans West indian woodnettle

non-native
Annual, Perennial herb

URTICACEAE

Lappula squarrosa European stickseed

non-native
Annual herb

Lasiospermum bipinnatum Woolly fruit

non-native
Perennial herb

Lasthenia burkei Burke's baeria, Burke's goldfields

• rare native
Annual herb

Lasthenia leptalea Salinas valley goldfields

• rare native
Annual herb

Lathyrus biflorus Two flowered pea, Twoflower pea

• rare native
Perennial herb

Lathyrus glandulosus Redwood pea, Sticky pea

• rare native
Perennial herb (rhizomatous)

Lathyrus lanszwertii var. tracyi Tracy's nevada pea, Tracy's pea

native
Perennial herb

Lathyrus polyphyllus Leafy pea, Oregon pea

native
Perennial herb

Lathyrus rigidus Rigid pea, Stiff pea

• rare native
Perennial herb

Lathyrus sativus White pea

non-native
Annual herb, Vine

Lathyrus sulphureus var. argillaceus Dubious pea, Snub pea

• rare native
Perennial herb

Lathyrus sylvestris Flat pea

non-native
Perennial herb

Lavatera assurgentiflora ssp. glabra Southern island mallow

• rare native
Shrub

Lavatera olbia Tree lavatera

non-native
Shrub

Lavatera trimestris Annual mallow

non-native
Annual herb

Legousia speculum-veneris European venus' looking glass

non-native
Annual, Perennial herb

Lemna aequinoctialis Lesser duckweed

native
Perennial herb

Lemna turionifera Turion duckweed

native
Perennial herb

Leontodon autumnalis Fall dandelion

non-native
Annual herb

Leontodon saxatilis ssp. saxatilis

non-native
Perennial herb

Leonurus sibiricus Honeyweed

non-native
Annual, Perennial herb

Lepidium heterophyllum Purpleanther field pepperweed, Variable leaved pepper grass, Variable leaved pepperwort

non-native
Annual herb

Lepidium latipes var. heckardii Heckard's pepper grass, Heckard's pepperweed

• rare native
Annual herb

Lepidium ramosissimum Manybranched pepperweed

native
Perennial herb

Lepidium sativum Gardencress pepperweed

non-native
Annual herb

Lepidium thurberi Thurber's pepper grass, Thurber's pepperweed

native
Annual herb

Lepidium virginicum ssp. menziesii Robinson's pepper grass

native
Annual herb

Leptochloa dubia Green sprangletop

non-native
Perennial grass

Leptochloa panicea ssp. brachiata Mucronate sprangeltop

native
Annual grass

Leptochloa viscida Sticky sprangletop

native
Annual grass

Leptosiphon chrysanthus

native
Perennial herb

Leptosiphon ciliatus ssp. neglectus Whiskerbrush

native
Annual herb

Leptosiphon minimus True babystars

native
Annual herb

Leptosiphon nudatus Tehachapi linanthus

native
Annual herb

Leptosiphon pygmaeus ssp. pygmaeus Pygmy leptosiphon

• rare native
Annual herb

Leptosiphon serrulatus Madera leptosiphon

• rare native
Annual herb

Lessingia glandulifera var. peirsonii Peirson's lessingia

native
Annual herb

Leucanthemum lacustre Portuguese daisy

non-native
Perennial herb

Leucophyllum frutescens Texas barometer bush

non-native
Shrub

Lewisia brachycalyx Short sepaled lewisia, Shortsepal lewisia

• rare native
Perennial herb

Lewisia columbiana Columbia lewisia, Columbian lewisia

native
Perennial herb

Lewisia oppositifolia Opposite leaved lewisia, Oppositeleaf lewisia

• rare native
Perennial herb

Lewisia Xwhiteae

native
Perennial herb

Leycesteria formosa Himalayan honeysuckle

non-native
Shrub

Leymus salinus Saline wildrye

native
Perennial grass

Leymus simplex Alkali wildrye

native
Perennial grass

Libertia formosa Showy libertia, Snowy mermaid

non-native
Perennial herb

Lilaeopsis occidentalis Lilaeopsis, Western grasswort, Western lilaeopsis

native
Perennial herb

Lilium pardalinum ssp. pitkinense Pitkin marsh lily

• rare native
Perennial herb (bulb)

Limnanthes alba ssp. parishii Parish's meadowfoam

• rare native
Annual herb

Limnanthes floccosa ssp. bellingeriana Bellinger's meadowfoam, Woolly meadowfoam

• rare native
Annual herb

Limnanthes vinculans Sebastopol meadowfoam

• rare native
Annual herb

Limnophila Xludoviciana

non-native
Perennial herb

Limonium arborescens Bush sealavender, Tree limonium

non-native
Perennial herb

Limonium brassicifolium

non-native
Perennial herb

Limonium otolepis Asian sea lavender, Saltmarsh sealavender

non-native
Perennial herb

Limonium preauxii

non-native
Perennial herb

Linanthus bernardinus Pioneertown linanthus

• rare native
Annual herb

Linanthus californicus ssp. tomentosus fuzzy prickly-phlox

• rare native
Shrub

Linaria bipartita Clovenlip toadflax, Split lip toadflax

non-native
Annual herb

Linaria genistifolia Broomleaf toadflax

non-native
Perennial herb

Linaria purpurea Purple toad flax, Purple toadflax

non-native
Perennial herb

Lipocarpha aristulata Awned halfchaff sedge, Pointed hemicarpha

native
Annual grasslike herb

Lipocarpha occidentalis Western halfchaff sedge, Western hemicarpha

native
Annual grasslike herb

Liriodendron tulipifera Tuliptree

non-native
Tree

MAGNOLIACEAE

Lithospermum incisum Narrowleaf gromwell, Narrowleaf stoneseed

• rare native
Perennial herb

Lithrea molleoides Aroeira blanca

non-native
Perennial herb

ANACARDIACEAE

Loeflingia squarrosa var. artemisiarum Sagebrush loeflingia

• rare native
Annual herb

Logfia arizonica Arizona cottonrose

native
Annual herb

Lolium rigidum Rigid italian rye grass, Wimmera ryegrass

non-native
Annual grass

Lomatium austiniae Plummer's lomatium

native
Perennial herb

Lomatium bicolor Wasatch desertparsley

native
Perennial herb

Lomatium canbyi Canby's biscuitroot, Canby's lomatium

• rare native
Perennial herb

Lomatium dasycarpum ssp. tomentosum Woolly fruited lomatium, Woollyfruit desertparsley

native
Perennial herb

Lomatium dissectum var. dissectum Fern leaved lomatium, Fernleaf biscuitroot

native
Perennial herb

Lomatium foeniculaceum ssp. macdougalii Macdougal's lomatium

• rare native
Perennial herb

Lomatium grayi Gray's lomatium

• rare native
Perennial herb

Lomatium hallii Hall's lomatium

native
Perennial herb

Lomatium howellii Howell's biscuitroot, Howell's lomatium

• rare native
Perennial herb

Lomatium insulare San Nicholas biscuitroot, San Nicolas island lomatium

• rare native
Perennial herb

Lomatium martindalei Cascade desertparsley, Coast range lomatium

• rare native
Perennial herb

Lomatium multifidum Fern leaved lomatium

native
Perennial herb

Lomatium piperi Indian biscuitroot, Piper's lomatium

native
Perennial herb

Lomatium ravenii var. ravenii Raven's lomatium

• rare native
Perennial herb

Lomatium roseanum Biscuitroot

• rare native
Perennial herb

Lonicera cauriana Blue fly honeysuckle, Sweet berry honeysuckle

native
Shrub

Lonicera etrusca Etruscan honeysuckle, Honeysuckle

non-native
Vine, Shrub

Lonicera tatarica Tatarian honeysuckle

non-native
Shrub

Lotus uliginosus Marsh lotus

non-native
Perennial herb

Ludwigia grandiflora Large-flowered primrose-willow

non-native
Perennial herb

Luma apiculata Temu

non-native
Tree, Shrub

Lupinus adsurgens var. adsurgens Drew's silky lupine

native
Perennial herb

Lupinus albicaulis var. shastensis Shasta lupine

native
Perennial herb

Lupinus albifrons var. johnstonii interior bush lupine

• rare native
Perennial herb

Lupinus albus white lupine

non-native
Annual herb

Lupinus antoninus Anthony peak lupine

• rare native
Perennial herb

Lupinus breweri var. parvulus Matted lupine

native
Perennial herb

Lupinus citrinus var. deflexus Mariposa lupine, Orangeflower lupine

• rare native
Annual herb

Lupinus croceus var. pilosellus Mt. eddy lupine, Saffron flowered lupine

• rare native
Perennial herb

Lupinus elatus Tall silky lupine

• rare native
Perennial herb

Lupinus elmeri Elmer's lupine

• rare native
Perennial herb

Lupinus gracilentus Green slender lupine

• rare native
Perennial herb

Lupinus guadalupensis Guadalupe island lupine

• rare native
Annual herb

Lupinus holmgrenianus Holmgren's lupine

• rare native
Perennial herb

Lupinus latifolius var. barbatus Hair tuft lupine

• rare native
Perennial herb

Lupinus lepidus var. aridus

native
perennial herb

Lupinus magnificus var. glarecola Coso mtns. lupine, Panamint mountain lupine

• rare native
Perennial herb

Lupinus magnificus var. hesperius Mcgee meadows lupine, Panamint mountain lupine

• rare native
Perennial herb

Lupinus milo-bakeri Milo baker's lupine

• rare native
Annual herb

Lupinus odoratus var. odoratus Mojave lupine

native
Annual herb

Lupinus odoratus var. pilosellus Mojave lupine, Mojave royal lupine

native
Annual herb

Lupinus polyphyllus var. pallidipes Meadow lupine

native
Perennial herb

Lupinus polyphyllus var. saxosus

native
perennial herb

Lupinus pratensis var. eriostachyus Hairy bannered inyo meadow lupine

native
Perennial herb

Lupinus sparsiflorus ssp. inopinatus Coulter's lupine

native
Annual herb

Lupinus sparsiflorus ssp. mohavensis Mojave lupine

native
Annual herb

Lupinus tracyi Tracy's lupine

• rare native
Perennial herb

Lupinus uncialis inchhigh lupine, Lilliput lupine, Inch high lupine

• rare native
Annual herb

Luzula glabrata Smooth woodrush

non-native
Perennial grasslike herb

Luzula multiflora Common woodrush

native
Perennial grasslike herb

Luzula piperi Piper's woodrush

native
Perennial grasslike herb

Lycium exsertum Arizona desert-thorn

• rare native
Shrub

Lycium ferocissimum African boxthorn

non-native
Shrub

Lycium torreyi Torrey's box thorn

• rare native
Shrub

Lycium verrucosum San nicholas desert thorn, San nicolas island desert thorn, San nicolas thorn

• rare native
Shrub

Lycopersicon peruvianum Wild tomato

non-native
Annual, Perennial herb

Lysimachia europaea Arctic starflower

• rare native
Perennial herb

MYRSINACEAE

Lysimachia nummularia Creeping jenny, Moneywort

non-native
Perennial herb

MYRSINACEAE

Lysimachia thyrsiflora Tufted loosestrife, Tufted yellow loosestrife

• rare native
Perennial herb

MYRSINACEAE

Macfadyena unguis-cati Catclawvine

non-native
Tree

BIGNONIACEAE

Machaeranthera tanacetifolia Tanseyleaf tansyaster, Tansy leaved aster

native
Annual herb

Madia citrigracilis Shasta tarweed

native
Annual herb

Madia subspicata Slender tarweed

native
Annual herb

Malacothamnus clementinus San Clemente Island bushmallow

• rare native
Shrub

Malacothamnus fasciculatus var. nesioticus Santa Cruz Island bushmallow

• rare native
Shrub

Malacothamnus fasciculatus var. nesioticus

Malacothamnus mendocinensis Mendocino bushmallow

• rare native
Shrub

Malacothamnus palmeri var. palmeri Palmer's bushmallow, Cambria bushmallow

• rare native
Shrub

Malacothamnus parishii Parish's bushmallow

• rare native
Shrub

Malacothrix foliosa Leafy desertdandelion, Leafy malacothrix

native
Annual herb

Malacothrix foliosa ssp. crispifolia Petite desertdandelion

• rare native
Annual herb

Malacothrix foliosa ssp. foliosa Leafy desertdandelion

• rare native
Annual herb

Malacothrix foliosa ssp. philbrickii Philbrick's desertdandelion

• rare native
Annual herb

Malacothrix foliosa ssp. polycephala Manyhead desertdandelion

• rare native
Annual herb

Malacothrix indecora Santa cruz island cliff aster, Santa cruz island desertdandelion, Santa cruz island malacothrix

• rare native
Annual herb

Malacothrix junakii Junak's desertdandelion

• rare native
Annual herb

Malacothrix similis Mexican malacothrix, Twin desertdandelion

• rare native
Annual herb

Malacothrix squalida Island malacothrix, Santa cruz desertdandelion

• rare native
Annual herb

Malacothrix torreyi Torrey's desertdandelion, Torrey's malacothrix

native
Annual herb

Malaxis monophyllos

native
Perennial herb (bulb)

Malaxis monophyllos var. brachypoda White bog adder's-mouth

• rare native
Perennial herb (bulb)

Malcolmia graeca

non-native
Annual herb

Malva moschata Musk mallow

non-native
Annual, Perennial herb

Malva verticillata Cluster mallow

non-native
Annual herb

Malva verticillata var. crispa Crisped mallow, curled mallow

non-native
Annual herb

Mammillaria grahamii Graham's nipple cactus

native
Shrub (stem succulent)

Mammillaria grahamii var. grahamii Graham's fishhook cactus

• rare native
Shrub (stem succulent)

Marina orcuttii Sonoran false prairie clover

native
Perennial herb

Marina orcuttii var. orcuttii California marina

• rare native
Perennial herb

Matthiola longipetala Night scented stock

non-native
Perennial herb

Maurandella antirrhiniflora Roving sailor

• rare native
Perennial herb

Maytenus magellanica Magellan's mayten

non-native
Tree, Shrub

CELASTRACEAE

Medicago orbicularis Blackdisk medick, Buttonclover, Round leafed medick

non-native
Annual herb

Medicago praecox Mediterranean medick

non-native
Annual herb

Medicago rigidula Tifton medick, tifton burclover

non-native
Annual herb

Medicago scutellata Snail medick

non-native
Annual herb

Meesia longiseta Long seta hump moss

• rare native
Moss

MEESIACEAE

Meesia triquetra Meesia moss

• rare native
Moss

MEESIACEAE

Meesia uliginosa Meesia moss

• rare native
Moss

MEESIACEAE

Melampodium perfoliatum Perfoliate blackfoot

non-native
Annual herb

Melica frutescens Heligrass, Tall melica, Woody melicgrass

native
Perennial grass

Melica fugax Little oniongrass, Small melic, Small onion grass

native
Perennial grass

Melica spectabilis Purple onion grass, Purple oniongrass

• rare native
Perennial grass (rhizomatous)

Menodora scabra Rough desert olive, Rough menodora

native
Shrub

Menodora scabra var. glabrescens Broom tvinberry, Desert olive

native
Perennial herb

Menodora scabra var. scabra Rough desert olive

• rare native
Shrub

Mentha longifolia

non-native
Perennial herb

Mentha Xgracilis Scotch spearmint

non-native
Perennial herb

Mentha Xrotundifolia Apple mint

non-native
Perennial herb

Mentha Xsmithiana Redstem mint

non-native
Perennial herb

Mentha Xvillosa

non-native
Perennial herb

Mentzelia jonesii Jones' blazing star, Jones' blazingstar

native
Annual herb, Vine

Mentzelia monoensis Mono craters blazing star

• rare native
Annual herb

Mentzelia multiflora Adonis blazingstar

native
Perennial herb

Mentzelia obscura Pacific blazing star, Pacific blazingstar

native
Annual herb

Mentzelia polita Elegant blazing star, Polished blazingstar

• rare native
Annual herb

Mentzelia pterosperma Wing seed blazing star, Wingseed blazingstar

• rare native
Annual herb

Mertensia cusickii Toiyabe bluebells

• rare native
Perennial herb

Mertensia franciscana Franciscan bluebells

native
Perennial herb

Mertensia longiflora Long flower bluebells, Small bluebells

• rare native
Perennial herb

Mertensia oblongifolia var. amoena Sagebrush bluebells

• rare native
Perennial herb

Mertensia oblongifolia var. oblongifolia Sagebrush bluebells

• rare native
Perennial herb

Micromonolepis pusilla Dwarf monolepis

• rare native
Annual herb

Micropus californicus var. subvestitus Hairy slender cottonweed, Q tips

native
Annual herb

Microseris borealis Apargidium, Bog microseris, Northern microseris

• rare native
Perennial herb

Microseris elegans Elegant silverpuffs

native
Annual herb

Microseris laciniata ssp. siskiyouensis Siskiyou microseris

native
Perennial herb

Mielichhoferia elongata Elongate copper moss

• rare native
Moss

Mielichhoferia mielichhoferiana Mielichhof's copper moss

• rare native
Moss

Mielichhoferia shevockii Shevock's copper moss

• rare native
Moss

MIELICHHOFERIACEAE

Mielichhoferia tehamensis Tehama copper moss

native
Moss

Mimulus cusickii Cusick's monkeyflower

native
Annual herb

Mimulus glabratus Roundleaf monkeyflower

native
Perennial herb (rhizomatous)

Mimulus ringens Allegheny monkeyflower, Typical monkeyflower

native
Perennial herb

Mimulus subsecundus One sided monkeyflower, Onesided monkeyflower

• rare native
Annual herb

Minuartia stricta Bog stitchwort, Granite sandwort

native
Perennial herb

Mirabilis albida Dwarf four o'clock

native
Perennial herb

Mirabilis coccinea Red four o'clock, Scarlet four o'clock

• rare native
Perennial herb

Mirabilis linearis Narrow leaf four o'clock, Narrowleaf four o'clock

non-native
Perennial herb

Mirabilis linearis var. linearis Narrow leaf four o'clock

non-native
Perennial herb

Mirabilis nyctaginea Heart leaf four o'clock, Heartleaf four o'clock

non-native
Perennial herb

Mobergia calculiformis Light gray lichen

• rare native
Lichen

PHYSCIACEAE

Moluccella laevis Shell flower, Shellflower

non-native
Annual herb

Monarda citriodora Lemon beebalm

non-native
Annual, Biennial, Perennial herb

Monarda pectinata Bee balm, Pony beebalm

• rare native
Annual herb

Monardella antonina ssp. antonina San antonio hills monardella

• rare native
Perennial herb (rhizomatous)

Monardella antonina ssp. benitensis San Benito monardella

• rare native
Perennial herb (rhizomatous)

Monardella boydii Boyd's monardella

• rare native
Annual herb

Monardella breweri ssp. glandulifera Brewer's monardella

native
Annual herb

Monardella breweri ssp. microcephala Brewer's monardella

native
Annual herb

Monardella eremicola Clark mountain monardella

• rare native
Annual herb

Monardella leucocephala Merced monardella

• rare native
Annual herb

Monardella linoides ssp. anemonoides Narrow leaved monardella

native
Perennial herb

Monardella linoides ssp. linoides Flax like monardella, Flaxleaf monardella

native
Perennial herb

Monardella linoides ssp. oblonga Flax like monardella, Flaxleaf monardella

• rare native
Perennial herb (rhizomatous)

Monardella macrantha ssp. macrantha Hummingbird monardella, Red monardella

native
Perennial herb

Monardella mojavensis

native
Annual herb

Monardella nana ssp. leptosiphon San felipe monardella

• rare native
Perennial herb (rhizomatous)

Monardella odoratissima ssp. odoratissima Mountain monardella

native
Perennial herb

Monardella odoratissima ssp. odoratissima

Monardella palmeri Palmer's monardella

• rare native
Perennial herb (rhizomatous)

Monardella pringlei Pringle's monardella

• rare native
Annual herb

Monardella robisonii Robison's monardella, Rock pennyroyal

• rare native
Perennial herb (rhizomatous)

Monardella saxicola Rock monardella

• rare native
Subshrub

Monardella sinuata ssp. gerryi Gerry's curly-leaved monardella

• rare native
Annual herb

Monardella stoneana Jennifer's monardella

• rare native
Perennial herb

Monardella undulata ssp. arguelloensis Curly leaved monardella

• rare native
Annual herb

Monardella undulata ssp. undulata San luis obispo monardella

• rare native
Annual herb

Monardella viminea Willowy monardella

• rare native
Perennial herb

Monolepis spathulata Beaver monolepis, Beaver povertyweed

native
Annual herb

Moraea collina Cape tulip

non-native
Perennial herb

Moraea polystachya Blue tulip

non-native
Perennial herb

Muhlenbergia alopecuroides Wolftail

native
Perennial grass

Muhlenbergia andina Foxtail muhly

native
Perennial grass

Muhlenbergia arsenei Navajo muhly, Tough muhly

• rare native
Perennial grass (rhizomatous)

Muhlenbergia californica California muhly

• rare native
Perennial grass (rhizomatous)

Muhlenbergia fragilis Delicate muhly

• rare native
Annual grass

Muhlenbergia glauca Desert muhly

native
Perennial grass

Muhlenbergia jonesii Jones' muhly, Modoc muhly

• rare native
Perennial grass

Muhlenbergia minutissima Annual muhly

native
Annual grass

Muhlenbergia pauciflora Few flowered muhly, New mexico muhly

• rare native
Perennial grass (rhizomatous)

Muhlenbergia porteri Bush muhly, Porter's muhly

native
Perennial grass

Muhlenbergia schreberi Nimblewell, Nimblewill

non-native
Perennial grass

Munroa squarrosa False buffalo grass

• rare native
Annual grass

Muntingia calabura Strawberrytree

non-native
Tree, Shrub

ELAEOCARPACEAE

Munzothamnus blairii Blair's wirelettuce

• rare native
Shrub

Myosotis scorpioides True forget me not, Yelloweye forgetmenot

non-native
Perennial herb

Myosotis sylvatica Woodland forget me not

non-native
Perennial herb

Myosurus apetalus var. montanus Bristly mousetail

native
Annual herb

Myosurus cupulatus Arizona mousetail, Desert mouse tail

native
Annual herb

Myriophyllum hippuroides Milfoil, Western milfoil, Western watermilfoil

native
Perennial herb (aquatic)

HALORAGACEAE

Myriophyllum quitense Andean watermilfoil

native
Perennial herb (aquatic)

HALORAGACEAE

Myriopteris wootonii Wooton's lace fern

• rare native
Perennial herb

Myurella julacea Myurella moss

• rare native
Moss

PTERIGYNANDRACEAE

Najas gracillima Slender water nymph, Slender waternymph

non-native
Annual herb

Najas graminea Grass leaved water nymph, Ricefield waternymph

non-native
Annual herb

Najas minor Brittle Waternymph

native
Annual herb

Nama aretioides var. californica California Fiddleleaf

native
Annual herb

Nama densa var. parviflora Leafy Nama

native
Annual herb

Nama depressa Narrow Leaf Nama

native
Annual herb

Nama dichotoma

native
Annual herb

Nama dichotoma var. dichotoma Forked purple mat

• rare native
Annual herb

Nardia hiroshii Hiroshi's flapwort

• rare native
Liverwort

JUNGERMANNIACEAE

Nasturtium gambelii Gambel's yellowcress

• rare native
Perennial herb

Navarretia aeroides

native
Annual herb

Navarretia crystallina Johnson's navarretia

native
Annual herb

Navarretia divaricata ssp. vividior Divaricate navarretia, Mountain navarretia

native
Annual herb

Navarretia eriocephala Hoary navarretia, Hoary pincushionplant

• rare native
Annual herb

Navarretia hamata ssp. leptantha Hooked navarretia, Hooked pincushionplant

native
Annual herb

Navarretia leucocephala ssp. pauciflora Few flowered navarretia, Fewflower navarretia

• rare native
Annual herb

Navarretia linearifolia ssp. linearifolia Navarretia

native
Annual herb

Navarretia linearifolia ssp. linearifolia

Navarretia linearifolia ssp. pinnatisecta Pinnate-leaved navarretia

• rare native
Annual herb

Navarretia linearifolia ssp. pinnatisecta

Navarretia miwukensis Gowen's navarretia

native
Annual herb

Navarretia modocensis

native
Annual herb

Navarretia myersii Myers' pincushionplant, Pincushion navarretia

native
Annual herb

Navarretia myersii ssp. deminuta Myer's navarretia, Myers' pincushionplant

• rare native
Annual herb

Navarretia myersii ssp. myersii Myers' pincushionplant

• rare native
Annual herb

Navarretia ojaiensis Ojai navarretia

• rare native
Annual herb

Navarretia paradoxiclara Navarretia

• rare native
Annual herb

Navarretia setiloba Paiute mountain pincushionplant, Piute mtns. navarretia

• rare native
Annual herb

Navarretia viscidula ssp. purpurea Sticky pincushionplant

native
Annual herb

Navarretia vividior Mountain navarretia

native
Annual herb

Prosopis velutina Velvet mesquite

non-native
Shrub

Nelumbo lutea American lotus

non-native
Perennial herb

NELUMBONACEAE

Nemacaulis denudata var. gracilis Cottonheads, Slender woolly heads

• rare native
Annual herb

Nemacladus calcaratus Chimney creek nemacladus

• rare native
Annual herb

Nemacladus capillaris Common nemacladus, Common threadplant

native
Annual herb

Nemacladus gracilis Slender nemacladus, Slender threadplant

• rare native
Annual herb

Nemacladus pinnatifidus Comb leaved nemacladus, Combleaf threadplant

native
Annual herb

Nemacladus secundiflorus var. secundiflorus Large-flowered nemacladus

• rare native
Annual herb

Nemacladus secundiflorus var. secundiflorus

Nemacladus tenuis Desert nemacladus

native
Annual herb

Nemacladus tenuis var. aliformis

native
Annual herb

Nemacladus tenuis var. tenuis Desert nemacladus

native
Annual herb

Nemacladus twisselmannii Twisselmann's nemacladus, Twisselmann's threadplant

• rare native
Annual herb

Nemacladus twisselmannii var. botanywomaniae Botany Woman's Threadplant

native
Annual herb

Nemacladus twisselmannii var. botanywomaniae

Nemacladus twisselmannii var. twisselmannii Twisselmann's nemacladus

native
Annual herb

Nemacladus twisselmannii var. twisselmannii

Nemophila breviflora Basin nemophila, Great basin nemophila

• rare native
Annual herb

Nemophila pulchella var. gracilis Eastwood's baby blue eyes, Slender nemophila

native
Annual herb

Neostapfia colusana Colusa grass, Colusagrass

• rare native
Annual grass

Nestotus stenophyllus Narrowleaf mock goldenweed

native
Perennial herb

Nicandra physalodes Apple of peru, Nicandra

non-native
Annual herb

Nicotiana alata Flowering tobacco, Jasmine tobacco

non-native
Perennial herb

Nicotiana Xsanderae

non-native
Annual herb

Nitrophila mohavensis Amargosa niterwort, Amargosa nitrophila

• rare native
Perennial herb

Nolina bigelovii Bigelow's nolina

native
Perennial herb

RUSCACEAE

Nothocalais troximoides False agoseris, Weevil prairie dandelion

native
Perennial herb

Notholaena californica ssp. leucophylla California cloak fern

native
Fern

Nymphaea alba European white waterlily

non-native
Perennial herb (aquatic)

NYMPHAEACEAE

Nymphaea mexicana Mexican water lily, Yellow waterlily

non-native
Perennial herb

NYMPHAEACEAE

Nymphaea odorata American white waterlily, Water lily

non-native
Perennial herb

NYMPHAEACEAE

Nymphoides peltata Water fringe, Yellow floatingheart

non-native
Perennial herb

MENYANTHACEAE

Oenothera cavernae Cavedwelling evening primrose

• rare native
Perennial herb

Oenothera caespitosa ssp. crinita Cespitose evening-primrose

• rare native
Perennial herb (rhizomatous)

Oenothera flava Yellow evening primrose

native
Perennial herb

Oenothera glazioviana Red sepaled evening primrose, Redsepal evening primrose

non-native
Perennial herb

Oenothera longissima Long evening primrose, Longstem evening primrose

• rare native
Perennial herb

Oenothera mexicana Mexican evening primrose

non-native
Perennial herb

Oenothera pubescens Pubescent evening primrose, South american evening primrose

native
Perennial herb

Oenothera sinuosa Wavy-leaved gaura

non-native
Perennial herb

Oenothera stricta Chilean evening primrose

non-native
Perennial herb

Oenothera villosa ssp. strigosa Hairy evening primrose

native
Perennial herb

Onobrychis viciifolia Sainfoin, Sanfoin

non-native
Perennial herb

Ononis alopecuroides Foxtail restharrow

• invasive non-native
Annual herb

Onopordum tauricum Bull cottonthistle, Taurian thistle

non-native
Perennial herb

Opuntia Xcurvispina Curved-spine beavertail

• rare native
Shrub (stem succulent)

Opuntia curvispina Curved-spine beavertail

• rare native
Shrub (stem succulent)

Opuntia engelmannii var. engelmannii Cactus apple, Engelmann prickly pear

native
Shrub

Opuntia polyacantha var. hystricina Grizzlybear pricklypear

native
Shrub (stem succulent)

Opuntia wigginsii Wiggins' cholla, Wiggins's cholla

• rare native
Shrub (stem succulent)

Orcuttia californica California orcutt grass

• rare native
Annual grass

Orcuttia pilosa Hairy orcutt grass

• rare native
Annual grass

Orcuttia viscida Sacramento orcutt grass

• rare native
Annual grass

Oreocarya roosiorum bristlecone cryptantha

• rare native
Perennial herb

Oreocarya sobolifera Creeping oreocarya, Waterton Lakes cryptantha

native
Perennial herb

Oreocarya tumulosa New York Mountains oreocarya

native
Perennial herb

Oreostemma peirsonii Peirson's aster

native
Perennial herb

Ornithogalum umbellatum Sleepydick

non-native
Perennial herb

Ornithopus pinnatus Pinnate leaved ornithopus, Yellow bird's foot

non-native
Annual, Perennial herb

Ornithopus sativus Bird's foot, Common bird's foot, Common ornithopus

non-native
Annual herb

Orobanche aegyptiaca Egyptian broomrape

• invasive non-native
Perennial herb (parasitic)

Orobanche ludoviciana var. arenosa Suksdorf's broom rape

• rare native
Perennial herb

Orobanche parishii ssp. brachyloba Parish's broomrape, Short lobed broom rape

• rare native
Perennial herb (parasitic)

Orobanche valida ssp. howellii Howell's broomrape

• rare native
Perennial herb (parasitic)

Orobanche valida ssp. valida Rock creek broomrape

• rare native
Perennial herb (parasitic)

Orthocarpus bracteosus Bracted owl's clover, Rosy owl's clover

native
Annual herb

Orthocarpus cuspidatus ssp. cuspidatus Siskiyou mountain owl's clover, Siskiyou mtns. orthocarpus

• rare native
Annual herb

Orthotrichum holzingeri Holzinger's orthotrichum moss

• rare native
Moss

Orthotrichum kellmanii Kellman's bristle moss

• rare native
Moss

Orthotrichum shevockii Shevock's bristle moss

native
Moss

Orthotrichum spjutii Spjut's bristle moss

• rare native
Moss

Osmorhiza depauperata Bluntseed sweetroot, Little sweet cicely

• rare native
Perennial herb

Osmorhiza purpurea Purple sweet cicely, Purple sweetroot

native
Perennial herb

Ottelia alismoides Duck lettuce, Ducklettuce

non-native
Perennial herb

Oxalis bowiei Red flower woodsorrel

non-native
Perennial herb

OXALIDACEAE

Oxalis latifolia Broadleaf woodsorrel, Mexican oxalis

non-native
Perennial herb

OXALIDACEAE

Oxalis radicosa Dwarf woodsorrel

non-native
Annual herb

OXALIDACEAE

Oxytropis borealis var. australis Boreal locoweed

native
Perennial herb

Oxytropis oreophila Mountain oxytrope

native
Perennial herb

Oxytropis oreophila var. juniperina mountain oxytrope, Bicknell locoweed

• rare native
Perennial herb

Oxytropis oreophila var. oreophila Mountain oxytrope, Round leaf loco weed

• rare native
Perennial herb

Ozomelis diversifolia Angle leafed miterwort

native
Perennial herb

Ozomelis trifida Three parted miterwort

native
Perennial herb

Packera hesperia Western ragwort

• rare native
Perennial herb

Packera indecora Elegant groundsel, Rayless mountain ragwort

• rare native
Perennial herb

Packera pseudaurea Falsegold groundsel

native
Perennial herb

Packera pseudaurea var. pseudaurea Falsegold groundsel

native
Perennial herb

Panicum acuminatum var. lindheimeri Lindheimer panicgrass, Pacific panic grass

native
Perennial grass

Panicum alatum Winged panicgrass

native
Annual grass

Panicum alatum var. minus Winged panicgrass

native
Annual grass

Panicum coloratum Kleingrass

non-native
Perennial grass

Panicum dichotomiflorum Fall panicgrass, Smooth witchgrass

non-native
Annual grass

Panicum dichotomiflorum ssp. dichotomiflorum Fall panic grass

non-native
Annual grass

Panicum dichotomiflorum ssp. dichotomiflorum

Panicum hillmanii Hillman's panicgrass

non-native
Annual grass

Panicum hirticaule Mexican panicgrass

native
Annual grass

Panicum hirticaule ssp. hirticaule Roughstalk witch grass

• rare native
Annual grass

Panicum miliaceum Broom corn millet, Broomcorn millet

non-native
Annual grass

Panicum miliaceum ssp. miliaceum Broomcorn millet

non-native
Annual grass

Panicum oligosanthes Heller's rosette grass

native
Annual grass

Panicum oligosanthes var. scribnerianum Scribner's rosette grass

native
Annual grass

Panicum rigidulum Redtop panicgrass

non-native
Perennial grass

Panicum rigidulum ssp. rigidulum Redtop panicum

non-native
Perennial grass

Panicum virgatum Switchgrass

non-native
Perennial grass

Papaver dubium Blindeyes

non-native
Annual herb

Papaver hybridum Round pricklyhead poppy

non-native
Annual herb

Parapholis strigosa Hairy sickle grass, Strigose sicklegrass

non-native
Annual grass

Parietaria hespera var. californica California pellitory

native
Annual herb

URTICACEAE

Parnassia cirrata var. cirrata San bernardino grass of parnassus

• rare native
Perennial herb

PARNASSIACEAE

Paronychia echinulata Eurasian nailwort

non-native
Annual herb

Paronychia echinulata var. echinulata Spiny paronychia

non-native
Annual herb

Paspalum notatum Bahia grass, Bahiagrass

non-native
Perennial grass

Paspalum notatum var. saurae Bahiagrass

non-native
Perennial grass

Passiflora manicata Red passionflower

non-native
Vine

PASSIFLORACEAE

Passiflora mixta Passionflower

non-native
Vine

PASSIFLORACEAE

Pectocarya peninsularis Baja pectocarya, Peninsular pectocarya

native
Annual herb

Pedicularis attollens ssp. attollens Little elephantshead

native
Perennial herb

Pedicularis attollens ssp. protogyna Little elephantshead

native
Perennial herb

Pedicularis centranthera Dwarf lousewort

• rare native
Perennial herb

Pedicularis racemosa ssp. alba Leafy lousewort, Sickletop lousewort

native
Perennial herb

Pedicularis rigginsiae Arroyo de la Cruz lousewort

• rare native
Perennial herb

Pediomelum castoreum Beaver indian breadroot

• rare native
Perennial herb

Peganum harmala Harmal peganum

• invasive non-native
Perennial herb

NITRARIACEAE

Pelargonium inquinans Scarlet geranium, South african pelargonium

non-native
Shrub (stem succulent)

Pelargonium panduriforme Oak leafed geranium, Oakleaf garden geranium

non-native
Shrub (stem succulent)

Pelargonium quercifolium Geranium, Oak leafed pelargonium, Oakleaf geranium

non-native
Shrub (stem succulent)

Pelargonium vitifolium Geranium, Grape leafed geranium, Grapeleaf geranium

non-native
Perennial herb

Pelargonium Xdomesticum Regal pelargonium

non-native
Shrub (stem succulent)

Pelargonium zonale Garden geranium, Horseshoe geranium

non-native
Perennial herb, Shrub

Pellaea truncata Cliff brake, Spiny cliffbrake

• rare native
Fern (rhizomatous)

Pellaea Xglaciogena

native
Fern (rhizomatous)

Peltandra virginica Green arrow arum, Peltandra

non-native
Perennial herb

Peltigera gowardii Western waterfan lichen

• rare native
Lichen

PELTIGERACEAE

Peltigera pacifica fringed pelt

• rare native
Lichen

PELTIGERACEAE

Pennisetum glaucum Pearl millet

non-native
Annual, Perennial grass

Pennisetum latifolium Uruguayan fountaingrass

non-native
Perennial grass

Pennisetum macrourum African feathergrass

non-native
Perennial grass

Pennisetum nervosum Bentspike fountaingrass

non-native
Perennial grass

Pennisetum purpureum Elephant grass

non-native
Perennial grass

Penstemon barnebyi Barneby's beardtongue, White river valley beardtongue

• rare native
Perennial herb

Penstemon bicolor Pinto beardtongue, Two color beardtongue

native
Perennial herb

Penstemon bicolor ssp. roseus Pinto beardtongue

• rare native
Perennial herb

Penstemon clevelandii var. mohavensis Mohave beard's tongue, Mojave beardtongue

native
Perennial herb

Penstemon heterodoxus var. shastensis Shasta beardtongue

• rare native
Perennial herb

Penstemon janishiae Antelope valley beardtongue

• rare native
Perennial herb

Penstemon pahutensis Pahute beardtongue, Paiute beardtongue

• rare native
Perennial herb

Penstemon stephensii Stephen's penstemon, Stephens' penstemon, Stephens's beardtongue

• rare native
Perennial herb

Penstemon thompsoniae Thompson's beardtongue

• rare native
Perennial herb

Penstemon thurberi Thurber penstemon, Thurber's beardtongue, Thurber's penstemon

• rare native
Perennial herb

Penstemon venustus Venus penstemon

non-native
Shrub (stem succulent)

Penstemon Xdubius Hybrid penstemon

native
Perennial herb

Penstemon Xparishii Hybrid beardtongue

native
Perennial herb

Penstemon Xpeirsonii

native
Perennial herb

Pentachaeta aurea ssp. aurea Golden chaetopappa

• rare native
Perennial herb

Pentachaeta exilis ssp. exilis Meager pygmydaisy, Slender pentachaeta

native
Annual herb

Pentagramma glanduloviscida

native
Fern

Pentagramma rebmanii

native
Fern

Pentagramma viscosa Sticky gold back fern

native
Fern

Pentameris airoides ssp. airoides False Hair-grass

non-native
Perennial grass

Pericallis hybrida Common ragwort

non-native
Annual, Perennial herb

Perideridia bacigalupii Bacigalupi's yampah, Mother lode yampah

• rare native
Perennial herb

Perideridia bolanderi ssp. involucrata Bolander's yampah

native
Perennial herb

Perideridia gairdneri ssp. borealis Common yampah, Northern gairdner's yampah

native
Perennial herb

Perideridia howellii Howell's yampah

native
Perennial herb

Perideridia parishii ssp. parishii Parish's yampah

• rare native
Perennial herb

Perityle intricata Desert rock daisy

native
Perennial herb

Persicaria orientalis Kiss me over the garden gate

non-native
Annual herb

Petalonyx nitidus Shiny leaf sandpaper plant, Shinyleaf sandpaper plant, sand paper plant

native
Perennial herb

Peteria thompsoniae Spine noded milk vetch, Thompson's peteria

• rare native
Perennial herb

Petradoria pumila Rock goldenrod

native
Perennial herb

Petradoria pumila ssp. pumila Grassy rockgoldenrod, Rock goldenrod

• rare native
Perennial herb

Petradoria pumila var. pumila Rock-goldenrod

native
Perennial herb

Petrorhagia nanteuilii Proliferous pink, Tubercle seeded pink grass

non-native
Annual herb

Petroselinum crispum Parsley

non-native
Perennial herb

Petunia axillaris Large white petunia

non-native
Annual, Perennial herb

Petunia integrifolia Violetflower petunia

non-native
Annual, Perennial herb

Phacelia adenophora Glandular yellow phacelia

native
Annual herb

Phacelia affinis Limestone phacelia, Purple bell phacelia

native
Annual herb

Phacelia amabilis Saline valley phacelia

• rare native
Annual herb

Phacelia argentea Sand dune phacelia, Sanddune phacelia

• rare native
Perennial herb

Phacelia barnebyana Barneby's phacelia

• rare native
Annual herb

Phacelia ciliata var. opaca Great valley phacelia, Merced phacelia

• rare native
Annual herb

Phacelia floribunda Many flowered phacelia, Southern island phacelia

• rare native
Annual herb

Phacelia humilis var. dudleyi Dudley's phacelia

native
Annual herb

Phacelia imbricata var. bernardina Bernadina Phacelia

native
Annual herb

Phacelia inundata Playa phacelia, Playa yellow phacelia

• rare native
Annual herb

Phacelia ivesiana var. pediculoides Ives' phacelia

native
Annual herb

Phacelia ixodes Costa baja phacelia

native
Annual herb

Phacelia lemmonii Lemmon's phacelia

native
Annual herb

Phacelia malvifolia var. loasifolia Stinging phacelia

native
Annual herb

Phacelia parishii Parish's phacelia

• rare native
Annual herb

Phacelia stellaris Brand's phacelia, Star phacelia

• rare native
Annual herb

Phacelia tetramera Four parted phacelia, Fourpart phacelia

native
Annual herb

Phacelia thermalis Heat phacelia, Heated phacelia

native
Annual herb

Phacelia umbrosa Colorado desert phacelia

native
Annual herb

Phalaris angusta Timothy canarygrass

native
Annual grass

Phalaris brachystachys Short spike canarygrass, Shortspike canarygrass

non-native
Annual grass

Phalaris canariensis Annual canarygrass

non-native
Annual grass

Phalaris caroliniana Carolina canarygrass

non-native
Annual grass

Phalaris coerulescens Sunolgrass

non-native
Perennial grass

Phelipanche ramosa Yellow broom rape

non-native
Perennial herb (parasitic)

Phlomis fruticosa Shrubby jerusalem sage

non-native
Perennial herb

Phlox caespitosa Tufted phlox

native
Perennial herb

Phlox douglasii Douglas' phlox

native
Perennial herb

Phlox longifolia Longleaf phlox

native
Perennial herb

Phlox muscoides Moss phlox

• rare native
Perennial herb

Phlox pulvinata Carpet phlox, Cushion phlox, Pulvinate phlox

native
Perennial herb

Phlox stansburyi ssp. stansburyi Cold-desert phlox

native
Perennial herb

Phlox stansburyi ssp. superba Cold-desert phlox

native
Perennial herb

Phlox stansburyi var. brevifolia Cold-desert phlox

native
Perennial herb

Phlox viridis Green phlox

native
Perennial herb

Phlox viridis ssp. longipes Green phlox

native
Perennial herb

Phryma leptostachya American lopseed

non-native
Perennial herb

Phyla cuneifolia Wedgeleaf

native
Perennial herb

Phyllanthus caroliniensis ssp. caroliniensis Carolina leaf flower

non-native
Annual herb

Phyllostachys bambusoides Japanese timber bamboo

non-native
Shrub

Physalis angulata Cutleaf groundcherry

native
Annual herb

Physalis hederifolia var. fendleri Fendler's groundcherry, Fendler's ivy leaf tomatillo

native
Perennial herb

Physalis hederifolia var. hederifolia Ivyleaf groundcherry

native
Perennial herb

Physalis lanceifolia Narrow leaf tomatillo

non-native
Annual herb

Physalis peruviana Peruvian groundcherry

non-native
Perennial herb

Physalis philadelphica var. immaculata Mexican groundcherry

non-native
Annual herb

Physalis pubescens Husk tomato

non-native
Perennial herb

Physalis pubescens var. grisea Gray ground cherry

non-native
Annual herb

Physalis pubescens var. integrifolia Hairy ground cherry, Husk tomato

non-native
Perennial herb

Physalis viscosa Grape ground cherry

non-native
Perennial herb

Physaria chambersii Chambers' twinpod, Double bladderpod

• rare native
Perennial herb

Physaria cordiformis

native
Perennial herb

Physaria kingii ssp. latifolia Limestone bladderpod

native
Perennial herb

Physaria ludoviciana Silver bladderpod

• rare native
Perennial herb

Physaria tenella Little bladderpod

native
Annual herb

Picea abies Norway spruce

non-native
Tree

Picea engelmannii Engelmann spruce

• rare native
Tree

Picea pungens Blue spruce

non-native
Tree

Picradeniopsis multiflora Many flowered bahia

native
Annual herb

Pinellia ternata Crowdipper

non-native
Perennial herb

Pinus brutia var. eldarica Afghan pine

non-native
Tree

Pinus elliottii Slash pine

non-native
Tree

Pinus nigra Austrian pine

non-native
Tree

Pinus ponderosa var. ponderosa North plateau ponderosa pine

native
Tree

Pinus ponderosa var. washoensis Washoe pine

native
Tree

Pinus sylvestris Scotch pine

non-native
Tree

Pinus thunbergiana Japanese black pine

non-native
Tree

Pinus Xattenuradiata

native
Tree

Piperia elegans ssp. decurtata Elegant piperia

• rare native
Perennial herb

Piptochaetium fuscum Bristly Speargrass

native
Perennial grass

Pisum sativum Garden pea

non-native
Annual herb

Pityopus californica California pinefoot, Pityopus

native
Perennial herb (mycoparasitic)

Plagiobothrys canescens var. catalinensis Catalina popcornflower

native
Annual herb

Plagiobothrys canescens var. catalinensis

Plagiobothrys collinus var. ursinus Cooper's popcornflower, Northern popcorn flower

native
Annual herb

Plagiobothrys cusickii Cusick's popcorn flower

native
Annual herb

Plagiobothrys distantiflorus California popcorn flower, California popcornflower

native
Annual herb

Plagiobothrys glaber Hairless popcorn flower, Hairless popcornflower

• rare native
Annual herb

Plagiobothrys glyptocarpus var. glyptocarpus Sculptured allocarya, Sculptured popcornflower

native
Annual herb

Plagiobothrys glyptocarpus var. glyptocarpus

Plagiobothrys glyptocarpus var. modestus Cedar crest popcorn flower, Sculptured popcornflower

• rare native
Annual herb

Plagiobothrys glyptocarpus var. modestus

Plagiobothrys hystriculus Bearded popcorn flower, Bearded popcornflower

• rare native
Annual herb

Plagiobothrys infectivus Dye popcorn flower, Dye popcornflower

native
Annual herb

Plagiobothrys leptocladus Alkali plagiobothrys, Finebranched popcornflower

native
Annual herb

Plagiobothrys lithocaryus Mayacamas popcorn flower, Mayacamas popcornflower

• rare native
Annual herb

Plagiobothrys mollis var. mollis Downy popcorn flower, Soft popcornflower

native
Perennial herb

Plagiobothrys mollis var. vestitus Petaluma popcorn flower, Soft popcornflower

• rare native
Perennial herb

Plagiobothrys nitens Shiny nutlet popcorn flower

• rare native
Perennial herb

Plagiobothrys reticulatus Netted popcornflower, Reticulate popcorn flower

native
Annual herb

Plagiobothrys reticulatus var. reticulatus Reticulate popcorn flower

native
Annual herb

Plagiobothrys reticulatus var. reticulatus

Plagiobothrys reticulatus var. rossianorum Fort ross allocarya

native
Annual herb

Plagiobothrys reticulatus var. rossianorum

Plagiobothrys salsus Desert popcorn flower, Salty popcornflower

• rare native
Annual herb

Plagiobothrys strictus Calistoga popcorn flower, Calistoga popcornflower

• rare native
Annual herb

Plagiobothrys tener Slender allocarya, Slender popcorn flower, Slender popcornflower

native
Annual herb

Plagiobothrys tener var. subglaber Slender popcornflower

native
Annual herb

Plagiobothrys torreyi var. diffusus Torrey's popcornflower

native
Annual herb

Plagiobothrys torreyi var. perplexans Chaparral popcornflower

• rare native
Annual herb

Plagiobothrys torreyi var. torreyi Torrey's popcorn flower, Torrey's popcornflower

• rare native
Annual herb

Plagiobothrys uncinatus Hooked popcorn flower, Salinas valley popcornflower

• rare native
Annual herb

Plagiobothrys undulatus Coast allocarya

native
Annual herb

Plagiobothrys verrucosus Forget-me-not popcornflower

• rare native
Annual herb

Plagiobryoides vinosula Wine-colored tufa moss

• rare native
Moss

Plantago aristata Bristly plantain, Largebracted plantain

non-native
Annual, Perennial herb

Plantago eriopoda Hairy fruited plantain, Redwool plantain

native
Perennial herb

Plantago heterophylla Slender plantain

non-native
Annual, Perennial herb

Plantago ovata var. insularis Desert plantain

native
Annual herb

Plantago pusilla Dwarf plantain, Little plantain

non-native
Annual herb

Plantago rhodosperma Redseed plantain, Virginia plantain

native
Annual, Perennial herb

Plantago truncata

non-native
Annual herb

Plantago truncata ssp. firma Chilean plantain

non-native
Annual herb

Plantago virginica Dwarf plantain, Virginia plantain

non-native
Annual, Perennial herb

Platanthera huronensis

native
Perennial herb

Platanthera stricta Slender bog orchid

• rare native
Perennial herb

Platanus orientalis Oriental planetree

non-native
Tree

PLATANACEAE

Platystemon californicus var. ciliatus Santa barbara island cream cups

• rare native
Annual herb

Pleuraphis mutica Tobosagrass

native
Perennial grass

Pleuridium acuminatum Acuminate pleuridium moss

native
Moss

Pleuridium mexicanum Mexican pleuridium moss

• rare native
Moss

Pleuridium subulatum Pleuridium moss

native
Moss

Poa abbreviata Short bluegrass

native
Perennial grass

Poa abbreviata ssp. marshii Marsh's blue grass, Marsh's bluegrass

• rare native
Perennial grass

Poa abbreviata ssp. pattersonii Patterson's blue grass

• rare native
Perennial grass

Poa atropurpurea San bernardino blue grass, San bernardino bluegrass

• rare native
Perennial grass (rhizomatous)

Poa bigelovii Bigelow's blue grass, Bigelow's bluegrass

native
Annual grass

Poa bolanderi Bolander's blue grass, Bolander's bluegrass

native
Annual grass

Poa bulbosa ssp. bulbosa Bulbous blue grass

non-native
Perennial grass

Poa compressa Canada blue grass, Canada bluegrass

non-native
Perennial grass

Poa cusickii ssp. cusickii Cusick's blue grass

native
Perennial grass

Poa diaboli Diablo canyon blue grass

• rare native
Perennial grass (rhizomatous)

Poa fendleriana Muttongrass

native
Perennial grass

Poa fendleriana ssp. fendleriana Muttongrass

native
Perennial grass

Poa fendleriana ssp. longiligula Fendler's blue grass, Muttongrass

native
Perennial grass

Poa infirma Weak blue grass, Weak bluegrass

non-native
Annual grass

Poa keckii Keck's blue grass, Keck's bluegrass

native
Perennial grass

Poa kelloggii Kellogg's bluegrass, Redwood blue grass

native
Perennial grass

Poa lettermanii Letterman's blue grass, Letterman's bluegrass

• rare native
Perennial grass

Poa macrantha Large flowered sand dune blue grass, Seashore bluegrass

native
Perennial grass

Poa napensis Napa blue grass, Napa bluegrass

• rare native
Perennial grass

Poa nemoralis Wood blue grass, Wood bluegrass

non-native
Perennial grass

Poa piperi Piper's blue grass, Piper's bluegrass

• rare native
Perennial grass (rhizomatous)

Poa pringlei Pringle's blue grass, Pringle's bluegrass

native
Perennial grass

Poa tenerrima Delicate blue grass, Delicate bluegrass

native
Perennial grass

Poa trivialis Rough blue grass, Rough bluegrass

non-native
Perennial grass

Pogogyne clareana Clare's pogogyne, Santa lucia mint

• rare native
Annual herb

Pogogyne douglasii ssp. parviflora Douglas' mesamint, Douglas's pogogyne

native
Annual herb

Pogogyne floribunda Profuse flowered pogogyne, Profuseflower mesamint

• rare native
Annual herb

Pogogyne nudiuscula Otay mesa mint, Otay mesamint, San diego pogogyne

• rare native
Annual herb

Pohlia flexuosa Flexuose threadmoss

• rare native
Moss

MIELICHHOFERIACEAE

Pohlia tundrae Tundra pohlia moss

• rare native
Moss

Polemonium pulcherrimum var. pilosum White flowered polemonium, White flowered sky pilot

native
Perennial herb

Poliomintha incana Frosted mint

• rare native
Shrub

Polyctenium fremontii Desert combleaf, Fremont's polyctenium

native
Perennial herb

Polygala acanthoclada Desert milkwort, Desert polygala, Milkwort

• rare native
Shrub

POLYGALACEAE

Polygala heterorhyncha Beaked spiny polygala, Notch beaked milkwort

• rare native
Perennial herb

POLYGALACEAE

Polygala intermontana Great basin milkwort, Intermountain milkwort

• rare native
Perennial herb, Shrub

POLYGALACEAE

Polygonum aviculare ssp. buxiforme Prostrate knotweed

non-native
Annual, Perennial herb

Polygonum aviculare ssp. neglectum Prostrate knotweed

non-native
Annual, Perennial herb

Polygonum aviculare ssp. rurivagum Prostrate knotweed

non-native
Annual, Perennial herb

Polygonum fowleri Fowler's knotweed

native
Annual herb

Polygonum hickmanii Hickman's knotweed

• rare native
Annual herb

Polygonum majus Large douglas' knotweed

native
Annual herb

Polygonum multiflorum Tuber fleeceflower

non-native
Vine

Polygonum polygaloides ssp. confertiflorum Dense knotweed, Fruitleaf knotweed

native
Annual herb

Polygonum polygaloides ssp. confertiflorum

Polygonum polygaloides ssp. esotericum Modoc county knotweed, Whitemargin knotweed

• rare native
Annual herb

Polygonum ramosissimum Bushy knotweed, Yellow knotweed

non-native
Annual herb

Polygonum ramosissimum ssp. prolificum Bushy knotweed

non-native
Annual herb

Polygonum ramosissimum ssp. ramosissimum Yellow knotweed

native
Annual herb

Polygonum sawatchense Knotweed

native
Annual herb

Polygonum sawatchense ssp. oblivium Knotweed

native
Annual, Perennial herb

Polypodium australe

non-native
Fern

POLYPODIACEAE

Polypodium hesperium Western polypody

native
Fern

POLYPODIACEAE

Polypogon imberbis Streambank rabbits foot grass

non-native
Annual, Perennial grass

Pontederia cordata Pickerelweed

non-native
Perennial herb

PONTEDERIACEAE

Populus Xcanadensis Carolina poplar

non-native
Tree

Populus Xparryi

native
Tree

Porophyllum ruderale Yerba porosa

non-native
Annual herb

Porophyllum ruderale var. macrocephalum Yerba porosa

non-native
Annual herb

Portulaca grandiflora Rose moss

non-native
Annual herb

PORTULACACEAE

Portulaca halimoides Desert portulaca, Purslane, Silkcotton purslane

• rare native
Annual herb

PORTULACACEAE

Potamogeton alpinus Alpine pondweed

native
Perennial herb (aquatic)

Potamogeton amplifolius Broad leaved pondweed, Large leaved pondweed, Largeleaf pondweed

native
Perennial herb (aquatic)

Potamogeton berchtoldii Narrow leaved pondweed

native
Perennial herb (aquatic)

Potamogeton foliosus ssp. fibrillosus Fibrous pondweed

• rare native
Perennial herb

Potamogeton gramineus Grass leaf pondweed, Grass leaved pondweed, Variableleaf pondweed

native
Perennial herb (aquatic)

Potamogeton pusillus Small pondweed

native
Perennial herb (aquatic)

Potentilla anserina ssp. anserina Silver weed cinquefoil

native
Perennial herb

Potentilla basaltica Black rock potentilla, Soldier meadows cinquefoil

• rare native
Perennial herb

Potentilla bruceae Bruce's cinquefoil

native
Perennial herb

Potentilla concinna Alpine cinquefoil, Elegant cinquefoil

native
Perennial herb

Potentilla concinna var. proxima Elegant cinquefoil

• rare native
Perennial herb

Potentilla grayi Gray's cinquefoil

native
Perennial herb

Potentilla hickmanii Hickman's cinquefoil

• rare native
Perennial herb

Potentilla millefolia var. klamathensis Cut leaf cinquefoil, Klamath cinquefoil

native
Perennial herb

Potentilla multijuga Ballona cinquefoil

• rare native
Perennial herb

Potentilla pulcherrima Beautiful cinquefoil

• rare native
Perennial herb

Potentilla uliginosa Cunningham marsh cinquefoil

• rare native
Perennial herb

Primula conjugens Bonneville shooting star

native
Perennial herb

PRIMULACEAE

Primula subalpina Sierra shooting star

native
Perennial herb

PRIMULACEAE

Proboscidea parviflora Doubleclaw

native
Annual herb

MARTYNIACEAE

Prosartes parvifolia Siskiyou bells

• rare native
Perennial herb

Prunus angustifolia Chickasaw plum

native
Tree

Prunus domestica European plum

non-native
Tree

Prunus lusitanica Portugal laurel

non-native
Tree

Prunus mahaleb Mahaleb cherry, St Lucie's Cherry

non-native
Tree

Prunus pumila Sandcherry

non-native
Tree

Prunus serrulata Japanese flowering cherry

non-native
Tree

Prunus subcordata var. kelloggii Kellogg's klamath plum

native
Tree, Shrub

Prunus subcordata var. oregana Oregon klamath plum

native
Tree, Shrub

Prunus subcordata var. subcordata Klamath plum

native
Tree, Shrub

Prunus tomentosa Nanking cherry

non-native
Tree

Pseudobraunia californica California pseudobraunia moss

native
Moss

HEDWIGIACEAE

Pseudognaphalium canescens Wright's cudweed

native
Perennial herb

Pseudognaphalium macounii Macoun's everlasting

native
Annual, Perennial herb

Pseudognaphalium roseum Rosy cudweed

native
Annual herb

Pseudoroegneria spicata ssp. inermis Beardless wheatgrass

non-native
Perennial grass

Pseudorontium cyathiferum Deep canyon snapdragon

• rare native
Annual herb

Pseudosasa japonica Arrow bamboo

non-native
Shrub

Pseudostellaria sierrae Sierra starwort

• rare native
Perennial herb (rhizomatous)

Psidium guajava Guava

non-native
Tree, Shrub

Psilotum nudum Whisk fern

non-native
Perennial herb

PSILOTACEAE

Psorothamnus arborescens var. arborescens Mojave indigo bush, Mojave indigobush

• rare native
Shrub

Psorothamnus arborescens var. arborescens

Psorothamnus fremontii Fremont indigobush, Fremont's dalea, Fremont's indigo bush

native
Shrub

Psorothamnus fremontii var. attenuatus Fremont's dalea, Fremont's indigo bush

• rare native
Shrub

Psorothamnus fremontii var. fremontii Fremont's dalea, Fremont's indigo bush

native
Shrub

Pteris tremula Australian brake

non-native
Fern

Pteris vittata Ladder brake

non-native
Fern

Ptilidium californicum Pacific fuzz wort

• rare native
Liverwort

PTILIDIACEAE

Puccinellia distans European alkali grass, Weeping alkaligrass

non-native
Perennial grass

Puccinellia lemmonii Lemmon's alkali grass, Lemmon's alkaligrass

native
Perennial grass

Puccinellia parishii Bog alkaligrass, Parish's alkali grass

• rare native
Annual grass

Puccinellia pumila Dwarf alkali grass

• rare native
Perennial grass

Purshia mexicana Mexican cliffrose

native
Shrub

Pyrola chlorantha Green flowered wintergreen, Greenflowered wintergreen

native
Shrub (stem succulent)

Pyrrocoma hirta var. hirta Sticky pyrrocoma, Tacky goldenweed

native
Perennial herb

Pyrrocoma hirta var. lanulosa Tacky goldenweed, Woolly pyrrocoma

native
Perennial herb

Pyrrocoma lanceolata Intermountain pyrrocoma, Lanceleaf goldenweed

native
Perennial herb

Pyrrocoma lanceolata var. lanceolata Intermountain pyrrocoma, Lanceleaf goldenweed

native
Perennial herb

Pyrrocoma lanceolata var. subviscosa Lanceleaf goldenweed, Sticky intermountain pyrrocoma

native
Perennial herb

Pyrrocoma racemosa var. congesta Clustered goldenweed, Del norte pyrrocoma

• rare native
Perennial herb

Pyrrocoma racemosa var. racemosa Clustered goldenweed, Racemose pyrrocoma

native
Perennial herb

Pyrrocoma uniflora var. gossypina Bear valley pyrrocoma, Plantain goldenweed

• rare native
Perennial herb

Quercus parvula var. parvula Santa cruz island oak

• rare native
Tree

Quercus robur English oak

non-native
Tree

Quercus Xewanii

native
Shrub, Tree

Quercus Xgrandidentata

native
Shrub, Tree

Quercus Xhowellii

native
Shrub, Tree

Quercus Xtownei

native
Shrub, Tree

Quillaja saponaria Soapbark

non-native

Ranunculus acris Acrid buttercup, Tall buttercup

non-native
Perennial herb

Ranunculus alismifolius var. lemmonii Common water plantain buttercup

native
Perennial herb

Ranunculus bulbosus Bulbous buttercup, St. anthony's turnip

non-native
Perennial herb

Ranunculus canus var. ludovicianus Hartweg's buttercup

native
Perennial herb

Ranunculus cortusifolius Azores buttercup

non-native
Perennial herb

Ranunculus eschscholtzii var. eschscholtzii Eschscholtz's buttercup

native
Perennial herb

Ranunculus eschscholtzii var. eschscholtzii

Ranunculus flammula var. flammula Greater creeping spearwort

native
Perennial herb

Ranunculus gormanii Gorman's buttercup

native
Perennial herb

Ranunculus hydrocharoides Frog's bit buttercup, Frogbit buttercup

• rare native
Perennial herb (aquatic)

Ranunculus macounii Macoun's buttercup

• rare native
Annual, Perennial herb

Ranunculus occidentalis var. howellii Western buttercup

native
Perennial herb

Ranunculus occidentalis var. ultramontanus Western buttercup

native
Perennial herb

Ranunculus occidentalis var. ultramontanus

Ranunculus orthorhynchus var. orthorhynchus Straight beaked buttercup, Straightbeak buttercup

native
Perennial herb

Ranunculus orthorhynchus var. orthorhynchus

Ranunculus parviflorus Few flowered buttercup, Smallflower buttercup

non-native
Annual herb

Ranunculus pusillus Low buttercup, Low spearwort

native
Annual herb (aquatic)

Ranunculus sceleratus var. multifidus Cursed buttercup

native
Annual herb (aquatic)

Ranunculus sceleratus var. sceleratus Cursed buttercup

native
Annual herb (aquatic)

Ratibida columnifera Upright prairie coneflower

non-native
Perennial herb

Reseda alba White mignonette, White upright mignonette

non-native
Perennial herb

RESEDACEAE

Reseda odorata Garden mignonette

non-native
Annual herb

RESEDACEAE

Rhamnus cathartica Common buckthorn

non-native
Shrub

Rhamnus pilosa Hairyleaf redberry

native
Shrub

Rhododendron occidentale var. paludosum Western azalea

native
Tree, Shrub

Rhus lanceolata Prairie sumac

non-native
Shrub

ANACARDIACEAE

Rhynchospora capitellata Brownish beaksedge, Capitate beaked rush

• rare native
Perennial grasslike herb

Rhynchospora globularis Globe beaksedge

• rare native
Perennial grasslike herb (rhizomatous)

Ribes divaricatum var. parishii Parish's gooseberry

• rare native
Shrub

Ribes menziesii var. ixoderme Aromatic canyon gooseberry, Sierra canyon gooseberry

• rare native
Shrub

Ribes roezlii var. amictum Sierra gooseberry

• rare native
Shrub

Ribes sericeum Santa lucia gooseberry

• rare native
Shrub

Ribes tularense Sequoia gooseberry, Tulare gooseberry

• rare native
Shrub

Riccia beyrichiana Purple crystalwort

native
Liverwort

RICCIACEAE

Riella americana American riella

• rare native
Liverwort

RIELLACEAE

Robinia neomexicana Desert locust, New mexico locust

• rare native
Tree, Shrub

Rorippa austriaca Austrian field cress, Austrian yellowcress

non-native
Perennial herb

Rorippa palustris ssp. hispida Hispid yellowcress

native
Annual, Perennial herb

Rorippa sphaerocarpa Round fruit yellow cress, Roundfruit yellowcress

native
Annual herb

Rorippa sylvestris Creeping yellowcress

• invasive non-native
Perennial herb

Rorippa tenerrima Modoc yellow cress

native
Annual herb

Rosa nutkana ssp. macdougalii Nootka rose

native
Shrub

Rosa pisocarpa ssp. ahartii Ahart rose

native
Shrub

Rosa rugosa Rugosa rose

non-native
Shrub, Vine

Rosa woodsii var. gratissima Tehachapi rose

native
Shrub

Rotala indica Indian toothcup

non-native
Annual herb

LYTHRACEAE

Rubia tinctoria Madder

non-native
Perennial herb

Rubus allegheniensis Allegheny blackberry

non-native
Shrub

Rubus glaucifolius var. ganderi Cuyamaca raspberry

• rare native
Shrub

Rubus idaeus ssp. strigosus Grayleaf red raspberry

native
Shrub

Rubus nivalis Snow bramble, Snow dwarf bramble, Snow raspberry

• rare native
Vine

Rubus pensilvanicus Pennsylvania blackberry

non-native
Vine, Shrub

Rubus ulmifolius var. ulmifolius Elmleaf blackberry

non-native
Shrub, Vine

Rumex britannica Pale dock

non-native
Perennial herb

Rumex bucephalophorus Red dock

non-native
Perennial herb

Rumex kerneri Kerner's dock

non-native
Perennial herb

Rumex lacustris Lake dock

native
Perennial herb (aquatic)

Rumex palustris

non-native
Perennial herb

Rumex persicarioides Golden dock

native
Annual, Perennial herb

Rumex sanguineus Redvein dock

non-native
Perennial herb

Rumex utahensis Toothed willow dock

native
Perennial herb

Rumex violascens Mexican dock, Violet dock

native
Annual, Perennial herb

Rupertia rigida Parish's california tea, Parish's rupertia

• rare native
Perennial herb

Rytidosperma biannulare

non-native
Perennial grass

Rytidosperma racemosum

non-native
Perennial grass

Sabulina decumbens The Lassics sandwort

• rare native
Perennial herb

Sabulina howellii Howell's sandwort

• rare native
Perennial herb

Sabulina stricta bog sandwort

• rare native
Perennial herb

Sagina maxima Stickystem pearlwort

native
Perennial herb

Sagina maxima ssp. crassicaulis Beach pearlwort, Perennial pearlwort, Stickystem pearlwort

native
Perennial herb

Sagina subulata Awl leaf pearlwort

non-native
Perennial herb

Sagittaria brevirostra Shortbeak arrowhead

non-native
Perennial herb

ALISMATACEAE

Sagittaria latifolia Broad leaf arrowhead, Broadleaf arrowhead, Wappato

native
Perennial herb (aquatic)

ALISMATACEAE

Sagittaria rigida Sessilefruit arrowhead

non-native
Perennial herb

ALISMATACEAE

Salicornia depressa Virginia glasswort

native
Annual herb

Salicornia perennis Chickenclaws

native
Perennial herb

Salicornia rubra Red pickleweed, Red swampfire

native
Annual herb

Salix alba White willow

non-native
Shrub, Tree

Salix bebbiana Bebb willow, Gray willow

• rare native
Tree

Salix drummondiana Drummond's willow

native
Shrub

Salix lasiandra var. caudata Shining willow

native
Shrub

Salix matsudana Corkscrew willow

non-native
Tree

Salix prolixa Mackenzie's willow

native
Tree, Shrub

Salix purpurea Purpleosier willow

non-native
Tree

Salix tracyi Tracy's willow

native
Tree, Shrub

Salix Xrubens Hybrid crack willow

non-native
Shrub, Tree

Salix Xsepulcralis Weeping willow

non-native
Tree

Salsola damascena Russian thistle

• invasive non-native
Shrub

Salsola gobicola Barbwire russian thistle

• invasive non-native
Annual, Perennial herb

Salsola paulsenii Barbwire russian thistle, Paulsen's russian thistle

• invasive non-native
Annual, Perennial herb

Salsola ryanii

• invasive non-native
Annual herb

Saltugilia caruifolia Caraway leaved woodland gilia

• rare native
Annual herb

Saltugilia latimeri Latimer's woodland gilia

• rare native
Annual herb

Salvia aethiopis Mediterranean sage

• invasive non-native
Perennial herb

Salvia apiana var. compacta Compact white sage

native
Shrub

Salvia dorrii var. dorrii Dorr's sage

native
Shrub

Salvia officinalis Kitchen sage

non-native
Perennial herb

Salvia pratensis Introduced sage

non-native
Shrub

Salvia verbenaca Verbena sage

non-native
Perennial herb

Salvia virgata Wand sage

• invasive non-native
Perennial herb

Salvia Xbernardina

native
Perennial herb

Salvinia molesta Kariba weed

• invasive non-native
Annual, Perennial herb

SALVINIACEAE

Salvinia oblongifolia

non-native
Annual, Perennial herb

SALVINIACEAE

Sanguisorba minor ssp. balearica Small burnet

non-native
Perennial herb

Sanguisorba officinalis Great burnet, Official burnet

• rare native
Perennial herb (rhizomatous)

Santolina chamaecyparissus Lavender cotton

non-native
Shrub

Sanvitalia procumbens Mexican creeping zinnia

non-native
Annual herb

Sarcobatus baileyi Bailey's greasewood

• rare native
Shrub

SARCOBATACEAE

Sarracenia purpurea Purple pitcherplant, Purple sarracenia

non-native
Perennial herb (stem succulent)

SARRACENIACEAE

Sarracenia purpurea ssp. venosa Purple sarracenia

non-native
Perennial herb (stem succulent)

SARRACENIACEAE

Satureja calamintha ssp. ascendens Woodland calamint

non-native
Perennial herb

Saussurea americana American saw wort

• rare native
Perennial herb

Saxifraga hyperborea Pygmy saxifrage

native
Perennial herb

Saxifraga rufidula Rusty saxifrage, Rustyhair saxifrage

native
Perennial herb (rhizomatous)

Saxifraga stolonifera Creeping saxifrage, Strawberry geranium

non-native
Perennial herb

Scabiosa stellata Pincushion flower, Starflower pincushions

non-native
Annual herb

DIPSACACEAE

Schedonnardus paniculatus Tumblegrass

non-native
Perennial grass

Schizachyrium scoparium Little bluestem

non-native
Perennial grass

Schizymenium shevockii Shevock's copper moss

native
Moss

Schoenoplectiella mucronata Bog Bulrush

native
Perennial grasslike herb

Schoenoplectiella saximontana Rocky Mountain Bulrush

native
Perennial grasslike herb

Schoenoplectus heterochaetus Slender bulrush

• rare native
Perennial grasslike herb (rhizomatous)

Schoenoplectus mucronatus Bog bulrush

non-native
Perennial grasslike herb

Schoenoplectus saximontanus Rocky mountain bulrush

native
Annual grasslike herb

Schoenoplectus tabernaemontani Softstem bulrush

native
Perennial grasslike herb

Schoenoplectus triqueter Three-sided bulrush

non-native
Perennial grasslike herb (rhizomatous)

Schoenus nigricans Black bogrush, Black sedge

• rare native
Perennial grasslike herb

Scirpus diffusus Diffuse rush, Umbrella bulrush

native
Perennial grasslike herb

Scleropogon brevifolius Burro grass, Burrograss

• rare native
Perennial grass

Scolymus hispanicus Common goldenthistle, Golden thistle

• invasive non-native
Perennial herb

Scopelophila cataractae Cataract scopelophila moss

• rare native
Moss

Scorzonera hispanica Black salsify, Spanish salsify, Viper's grass

non-native
Perennial herb

Scouleria aquatica Blackmat splashzone moss

native
Moss

SCOULERIACEAE

Scouleria marginata Marginate splashzone moss

native
Moss

SCOULERIACEAE

Scrophularia villosa Santa catalina figwort

• rare native
Shrub

Scutellaria holmgreniorum Holmgren's skullcap

• rare native
Perennial herb (rhizomatous)

Scutellaria lateriflora Blue skullcap, Mad dog skullcap

• rare native
Perennial herb (rhizomatous)

Sedella leiocarpa Lake county stonecrop

• rare native
Annual herb

Sedum eastwoodiae Red mountain sedum, Red mountain stonecrop, Red mtn. stonecrop

native
Perennial herb

Sedum laxum ssp. laxum Rose flowered stonecrop, Roseflower stonecrop

native
Perennial herb

Sedum oblanceolatum Applegate stonecrop, Oblongleaf stonecrop

• rare native
Perennial herb

Sedum oreganum Oregon stonecrop

native
Perennial herb

Sedum paradisum ssp. subroseum

native
Perennial herb

Selaginella densa Lesser spikemoss

native

SELAGINELLACEAE

Selaginella kraussiana Krauss' spikemoss

non-native

SELAGINELLACEAE

Selaginella oregana Oregon spike moss, Oregon spikemoss

native

SELAGINELLACEAE

Senecio astephanus San gabriel ragwort

• rare native
Perennial herb

Senecio clevelandii var. clevelandii Cleveland's ragwort

• rare native
Perennial herb

Senecio integerrimus var. ochroleucus Paleyellow ragwort, White flowered mountain butterweed

native
Perennial herb

Senecio squalidus Oxford ragwort

non-native
Perennial herb

Senna alata Emperor's candlesticks

non-native
Annual herb, Perennial herb, Shrub

Senna marilandica Maryland senna

non-native
Shrub

Senna multiglandulosa Glandular cassia

non-native
Shrub

Senna obtusifolia Blunt leafed senna, Java bean

non-native
Annual, Perennial herb

Sesbania emerus Danglepod

non-native
Annual herb

Setaria faberi Foxtail, Japanese bristlegrass

non-native
Annual grass

Setaria italica Foxtail bristlegrass

non-native
Annual grass

Setaria sphacelata African bristlegrass

non-native
Perennial grass

Sibara filifolia Island rockcress, Santa cruz island rock cress, Santa cruz island winged rockcress

• rare native
Annual herb

Sida abutifolia Spreading fanpetals

non-native
Annual herb

Sidalcea asprella ssp. nana Dwarf sierran checkerbloom

native
Perennial herb

Sidalcea celata Redding checkerbloom

• rare native
Perennial herb

Sidalcea elegans Del norte checkerbloom

• rare native
Perennial herb

Sidalcea hickmanii ssp. hickmanii Hickman's checkerbloom

• rare native
Perennial herb

Sidalcea hickmanii ssp. pillsburiensis Lake pillsbury checkerbloom

• rare native
Perennial herb

Sidalcea hickmanii ssp. viridis Marin checkerbloom

• rare native
Perennial herb

Sidalcea malviflora ssp. dolosa Deceitful checker mallow, Dwarf checkerbloom

• rare native
Perennial herb (rhizomatous)

Sidalcea malviflora ssp. rostrata Dwarf checkerbloom

native
Perennial herb

Sidalcea oregana ssp. eximia Coast checkerbloom

• rare native
Perennial herb

Sidalcea oregana ssp. hydrophila Marsh checkerbloom, Oregon checkerbloom

• rare native
Perennial herb

Sidalcea setosa Bristly checkerbloom

native
Perennial herb

Sidalcea stipularis Scadden flat checkerbloom

• rare native
Perennial herb (rhizomatous)

Silene bridgesii Bridges campion, Bridges' campion, Bridges' catchfly

native
Perennial herb

Silene conoidea Cone campion, Weed silene

non-native
Annual herb

Silene dichotoma Branching campion, Dichotoma silene

non-native
Annual herb

Silene dichotoma ssp. dichotoma Branching campion

non-native
Annual herb

Silene latifolia Bladder campion

non-native
Perennial herb

Silene marmorensis Marble mountain catchfly, Marble mtn. campion

• rare native
Perennial herb

Silene noctiflora Night flowering campion, Nightflowering silene

non-native
Annual herb

Silene occidentalis ssp. longistipitata Western campion, Western catchfly

• rare native
Perennial herb

Silene oregana Oregon campion, Oregon silene

• rare native
Perennial herb

Silene pseudatocion North african catchfly

non-native
Annual herb

Sinapis alba White mustard

non-native
Annual herb

Sisymbrium loeselii Rocket, Small tumbleweed mustard

non-native
Annual herb

Sisyrinchium halophilum Nevada blue eyed grass

native
Perennial herb

Sisyrinchium hitchcockii Hitchcock's blue eyed grass

• rare native
Perennial herb (rhizomatous)

Sisyrinchium idahoense var. idahoense Idaho blue eyed grass

native
Perennial herb

Sisyrinchium minus Dwarf blue eyed grass

non-native
Perennial herb

Solanum cardiophyllum Heartleaf horsenettle

non-native
Annual, Perennial herb

Solanum dimidiatum Torrey's nightshade, Western horsenettle

non-native
Perennial herb

Solanum gayanum Chilean nightshade

non-native
Vine

Solanum heterodoxum Melonleaf nightshade

native
Annual, Perennial herb

Solanum marginatum Purple african nightshade, White margined nightshade

non-native
Shrub

Solanum mauritianum Earleaf nightshade

non-native
Shrub

Solanum scabrum Garden huckleberry

non-native
Annual herb

Solanum sisymbriifolium Sticky nightshade

non-native
Annual herb

Solidago altissima ssp. altissima Late goldenrod

non-native
Perennial herb

Solidago lepida var. salebrosa Western goldenrod

• rare native
Perennial herb (rhizomatous)

Solidago velutina ssp. sparsiflora Great basin goldenrod

native
Perennial herb

Sonchus arvensis ssp. arvensis Field sowthistle

non-native
Perennial herb

Sonchus arvensis ssp. uliginosus Moist sowthistle

non-native
Perennial herb

Sonchus tenerrimus Slender sow thistle, Slender sowthistle

non-native
Annual herb

Sonnea hispida Cascade popcornflower

native
Annual herb

Sorbus sitchensis Western mountain ash

native
Tree, Shrub

Sorbus sitchensis var. grayi Sitka mountain ash, Western mountain ash

native
Tree, Shrub

Sorbus sitchensis var. sitchensis Sitka mountain ash

native
Tree, Shrub

Sorghum bicolor ssp. arundinaceum Common wild sorghum

non-native
Annual grass

Sorghum bicolor ssp. bicolor Grain sorghum

non-native
Annual grass

Sorghum bicolor ssp. drummondii Sudangrass

non-native
Annual grass

Sparaxis grandiflora Large flowered harlequin flower

non-native
Perennial herb

Sparganium erectum Simplestem bur reed

native
Perennial herb

TYPHACEAE

Spartina alterniflora Salt water cord grass, Smooth cordgrass

• invasive non-native
Perennial grass

Spartina anglica Common cordgrass

• invasive non-native
Perennial grass

Spartina densiflora Dense flowered cord grass, Denseflower cordgrass

• invasive non-native
Perennial grass

Spartina patens Salt meadow cord grass, Saltmeadow cordgrass

• invasive non-native
Perennial grass

Spergularia canadensis Canadian sandspurry

native
Annual herb

Spergularia canadensis var. occidentalis Northern sand spurrey, Western sandspurry

• rare native
Annual herb

Spergularia canadensis var. occidentalis

Spergularia media var. media Sand spurry

non-native
Annual, Perennial herb

Spergularia platensis La plata sandspurry

non-native
Annual herb

Spermolepis echinata Bristly scaleseed, Bristly spermolepis

native
Annual herb

Spermolepis lateriflora western bristly scaleseed

• rare native
Annual herb

Sphaeralcea emoryi Emory's globemallow

native
Perennial herb

Sphaeralcea emoryi var. emoryi Emory's desert mallow, Emory's globemallow

native
Perennial herb

Sphaeralcea grossulariifolia Gooseberryleaf globemallow

• rare native
Perennial herb, Shrub

Sphaeralcea laxa Caliche globemallow

non-native
Perennial herb, Shrub

Sphaeralcea munroana Munro's globemallow

• rare native
Perennial herb

Sphaeralcea orcuttii Carrizo creek globemallow, Carrizo mallow

native
Annual, Perennial herb

Sphaeralcea rusbyi Rusby's globemallow

native
Perennial herb

Sphaeralcea rusbyi var. eremicola Rusby's desert mallow

• rare native
Perennial herb

Sphaerocarpos drewei Bottle liverwort

• rare native
Liverwort

SPHAEROCARPACEAE

Sphaerocarpos drewiae Bottle liverwort

• rare native
Liverwort

SPHAEROCARPACEAE

Sphaerophysa salsula Alkali swainsonpea, Austrian peaweed

• invasive non-native
Perennial herb

Sphaeropteris cooperi Cooper's tree fern

non-native
Perennial herb

CYATHEACEAE

Spinacia oleracea Spinach

non-native
Annual herb

Sporobolus contractus Spike dropseed

native
Perennial grass

Sporobolus flexuosus Mesa dropseed

native
Perennial grass

Sporobolus junceus Pineywoods dropseed

non-native
Perennial grass

Sporobolus vaginiflorus Poverty dropseed, Poverty grass

non-native
Annual grass

Sporobolus wrightii Big sacaton

native
Perennial grass

Stachys arvensis Annual hedge nettle, Field hedge nettle, Staggerweed

non-native
Annual herb

Stachys bergii Berg's hedgenettle

native
Perennial herb

Stachys floridana Florida hedgenettle

non-native
Perennial herb

Stachys palustris Marsh hedgenettle

native
Perennial herb

Stanleya viridiflora Green flowered prince's plume, Green princesplume

• rare native
Perennial herb

Stellaria crispa Curled starwort, Ruffled starwort

native
Perennial herb

Stellaria graminea Grasslike starwort

non-native
Perennial herb

Stellaria longifolia Long leaved starwort, Longleaf starwort

• rare native
Perennial herb (rhizomatous)

Stellaria pallida Pale starwort

non-native
Annual herb

Stellaria umbellata Umbellate chickweed, Umbrella starwort

native
Perennial herb

Stemodia durantifolia White woolly stemodia, Whitewoolly twintip

• rare native
Perennial herb

Stenotus lanuginosus var. lanuginosus Woolly stenotus

• rare native
Perennial herb

Stephanomeria exigua ssp. deanei Dean's stephanomeria, Deane's wirelettuce

native
Annual herb

Stephanomeria exigua ssp. macrocarpa Large fruited stephanomeria, Whiteplume wirelettuce

native
Annual herb

Stephanomeria paniculata Stiff branched stephanomeria, Tufted wirelettuce

native
Annual herb

Stillingia paucidentata Mojave stillingia, Mojave toothleaf, Tooth leaf

native
Perennial herb

Stipa comata var. intermedia Intermediate needle & thread grass

native
Perennial grass

Stipa exigua Little ricegrass

• rare native
Perennial grass

Stipa latiglumis Wide-glumed needle grass

native
Perennial grass

Stipa lemmonii var. pubescens Pubescent needle grass

• rare native
Perennial grass

Stipa lettermanii Letterman's needle grass

native
Perennial grass

Stipa mauritanica Mauritanian grass

non-native
Perennial grass

Stipa nevadensis Nevada needle grass

native
Perennial grass

Stipa occidentalis var. pubescens Common western needle grass

native
Perennial grass

Stipa pinetorum Pinewoods needle grass

native
Perennial grass

Stipa thurberiana Thurber's needle grass

native
Perennial grass

Streptanthus gracilis Alpine jewel flower, Alpine jewelflower

• rare native
Annual herb

Streptanthus howellii Howell's jewel flower, Howell's jewelflower

• rare native
Perennial herb

Streptanthus insignis ssp. lyonii Arburua ranch jewel flower, Arburua ranch jewelflower

• rare native
Annual herb

Streptanthus morrisonii ssp. hirtiflorus Dorr's cabin jewel flower, Dorr's cabin jewelflower

• rare native
Perennial herb

Streptanthus morrisonii ssp. hirtiflorus

Streptanthus morrisonii ssp. kruckebergii Kruckeberg's jewel flower, Krukeberg's jewelflower

• rare native
Perennial herb

Streptanthus morrisonii ssp. kruckebergii

Streptanthus morrisonii ssp. morrisonii Morrison's jewel flower, Morrison's jewelflower

• rare native
Perennial herb

Streptanthus oliganthus Masonic mountain jewelflower, Masonic mtn. jewel flower

• rare native
Perennial herb

Streptanthus vimineus

native
Annual herb

Prosopis strombulifera Argentine screwbean

non-native
Shrub

Stuckenia striata Broadleaf pondweed

native
Perennial herb (aquatic)

Stylocline citroleum Oil nest straw, Oil neststraw

• rare native
Annual herb

Stylocline masonii Mason neststraw, Mason's neststraw

• rare native
Annual herb

Stylocline sonorensis Mesquite neststraw, Sonoran neststraw

• rare native
Annual herb

Suaeda calceoliformis Horned sea blite, Pursh seepweed

native
Annual herb

Sulcaria badia grooved beard lichen

• rare native
Lichen

ALECTORIACEAE

Sulcaria isidiifera Splitting yarn lichen

• rare native
Lichen

ALECTORIACEAE

Syagrus romanzoffiana Queen palm

non-native
Tree

ARECACEAE

Symphyotrichum foliaceum var. apricum Alpine leafybract aster

native
Perennial herb

Symphyotrichum foliaceum var. canbyi Canby's aster

native
Perennial herb

Symphyotrichum laeve Smooth blue aster

native
Perennial herb

Symphyotrichum laeve var. geyeri Geyer's aster

native
Perennial herb

Symphyotrichum spathulatum var. intermedium Larger western mountain aster

native
Perennial herb

Symphyotrichum spathulatum var. intermedium

Symphyotrichum subulatum var. elongatum Eastern annual saltmarsh aster

non-native
Perennial herb

Symphytum Xuplandicum Russian comfrey

non-native
Perennial herb

Syntrichopappus lemmonii Lemmon's syntrichopappus, Pinkray fremont's gold

• rare native
Annual herb

Syzygium australe Brush cherry

non-native
Tree

Tagetes erecta French or african marigold

non-native
Annual herb

Tamarix aralensis Russian tamarisk

non-native
Tree, Shrub

TAMARICACEAE

Tanacetum balsamita Costmary

non-native
Perennial herb

Teesdalia coronopifolia Lesser shepherds cress, Lesser shepherdscress

non-native
Annual herb

Tetradymia argyraea Striped cottonthorn, Striped horsebrush

• rare native
Shrub

Tetradymia axillaris var. axillaris Catclaw horsebrush, Longspine horsebrush

native
Shrub

Teucrium canadense Canada germander

native
Annual herb

Teucrium canadense var. occidentale Western germander

native
Annual herb

Teucrium cubense Small coastal germander

native
Annual herb

Teucrium cubense ssp. depressum Lou germander, Small coastal germander

• rare native
Annual herb

Teucrium fruticans Shrubby germander

non-native
Shrub

Teucrium glandulosum Common germander, Germander, Sticky teucrium

• rare native
Shrub

Texosporium sancti-jacobi Woven-spored lichen

• rare native
Lichen

CALICIACEAE

Thalictrum occidentale Western meadow rue

native
Perennial herb

Thelesperma megapotamicum Hopi tea greenthread

non-native
Perennial herb

Thelesperma simplicifolium Slender greenthread

non-native
Perennial herb

Thelypodium flexuosum Nodding thelypodium, Nodding thelypody, Thelypodium

native
Perennial herb

Thelypodium howellii Howell's thelypody

native
Perennial herb

Thelypodium howellii ssp. howellii Howell's thelypodium, Howell's thelypody

• rare native
Perennial herb

Thelypodium stenopetalum Slender petaled thelypodium, Slenderpetal thelypody

• rare native
Perennial herb

Themeda quadrivalvis Kangaroo grass

non-native
Annual grass

Thevetia peruviana Luckynut

non-native
Tree, Shrub

Thysanocarpus conchuliferus Cupped fringe pod, Santa cruz island fringepod, Santa cruz island lacepod

• rare native
Annual herb

Thysanocarpus curvipes ssp. amplectens Common fringe pod

native
Annual herb

Thysanocarpus desertorum Narrow leaved lacepod

native
Annual herb

Thysanocarpus rigidus Rigid fringepod

• rare native
Annual herb

Tidestromia lanuginosa Woolly tidestromia

native
Annual herb

Tilia americana American basswood

non-native
Tree

TILIACEAE

Tillandsia usneoides Spanish moss

non-native
Perennial herb

BROMELIACEAE

Tiquilia canescens var. pulchella Chocolate mtns. coldenia, Woody crinklemat

• rare native
Perennial herb, Shrub

EHRETIACEAE

Tonestus lyallii Lyall's goldenweed, Lyall's tonestus

• rare native
Perennial herb (rhizomatous)

Torreyochloa californica Sierra false mannagrass

native
Perennial grass (rhizomatous)

Tortella alpicola Alpine crisp moss

• rare native
Moss

Tortella fragilis Fragile tortella moss

native
Moss

Tortula californica California tortula moss

• rare native
Moss

Townsendia parryi Parry's townsend daisy, Parry's townsendia

native
Perennial herb

Tradescantia ohiensis Bluejacket

non-native
Perennial herb

COMMELINACEAE

Tragia ramosa Branched noseburn, Desert noseburn

• rare native
Perennial herb

Tragopogon hybridus Pasture goatsbeard

non-native
Annual herb

Tribolium obliterum Capetown grass

non-native
Perennial grass

Trichocoronis wrightii Limestone bugheal

native
Annual herb

Trichocoronis wrightii var. wrightii Wright's trichocoronis

• rare native
Annual herb

Trichodon cylindricus Trichodon moss

• rare native
Moss

Trichophorum clementis Yosemite bulrush

native
Perennial grasslike herb

Trichostema austromontanum ssp. compactum Hidden lake bluecurls, San jacinto bluecurls

• rare native
Annual herb

Trichostema austromontanum ssp. compactum

Trichostema micranthum Small flowered bluecurls, Smallflower bluecurls

• rare native
Annual herb

Trichostema simulatum Siskiyou bluecurls

native
Annual herb

Trifolium alexandrinum Egyptian clover

non-native
Annual herb

Trifolium andersonii ssp. andersonii Anderson's clover

• rare native
Perennial herb

Trifolium aureum Golden clover, Hop clover

non-native
Annual herb

Trifolium buckwestiorum Santa cruz clover

• rare native
Annual herb

Trifolium columbinum Olive clover

native
Annual herb

Trifolium dedeckerae Dedecker's clover

• rare native
Perennial herb

Trifolium eriocephalum ssp. cusickii Cusick's clover

native
Perennial herb

Trifolium gymnocarpon Hollyleaf clover

native
Perennial herb

Trifolium gymnocarpon ssp. plummerae Plummer's clover

• rare native
Perennial herb

Trifolium hybridum Alsike clover

non-native
Perennial herb

Trifolium hydrophilum Saline clover

• rare native
Annual herb

Trifolium longipes ssp. oreganum Oregon clover

native
Perennial herb

Trifolium longipes ssp. shastense Longstalk clover

native
Perennial herb

Trifolium monanthum ssp. grantianum Grant's carpet clover

native
Perennial herb

Trifolium monanthum ssp. parvum Small carpet clover

native
Perennial herb

Trifolium palmeri Southern island clover

• rare native
Annual herb

Trifolium piorkowskii Piorkowski's clover

• rare native
Annual herb

Trifolium siskiyouense Siskiyou clover

• rare native
Perennial herb

Trifolium stellatum Star clover

non-native
Annual herb

Trifolium trichocalyx Monterey clover

• rare native
Annual herb

Trifolium variegatum var. geminiflorum Small-flowered variegated clover

native
Annual herb

Trigonella corniculata Cultivated fenugreek

non-native
Annual herb

Trigonella foenum-graecum Sicklefruit fenugreek

non-native
Annual herb

Tripterocalyx crux-maltae Lassen sand verbena, Lassen sandverbena

• rare native
Annual herb

Tripterocalyx micranthus Little sand verbena, Smallflower sandverbena

• rare native
Annual herb

Triquetrella californica California triquetrella moss

• rare native
Moss

Trisetum flavescens Yellow oatgrass

non-native
Perennial grass

Triteleia clementina San clemente island triteleia

• rare native
Perennial herb (bulb)

Triteleia crocea var. crocea Yellow triteleia

• rare native
Perennial herb (bulb)

Triteleia grandiflora Largeflower triteleia

• rare native
Perennial herb

Triteleia hendersonii Henderson's triteleia

• rare native
Perennial herb (bulb)

Triteleia ixioides ssp. cookii Cook's triteleia

• rare native
Perennial herb (bulb)

Triteleia ixioides ssp. unifolia Prettyface

native
Perennial herb

Triteleia versicolor Pinto triteleia

native
Perennial herb

Tropidocarpum californicum King's gold

• rare native
Perennial herb

Tropidocarpum capparideum Caper fruited tropidocarpum, Caperfruit tropidocarpum

• rare native
Annual herb

Tsuga heterophylla Western hemlock

native
Tree

Tuberaria guttata European frostweed, Tuberaria

non-native
Annual, Perennial herb

Tuctoria greenei Awnless spiralgrass, Greene's tuctoria

• rare native
Annual grass

Tulipa clusiana Lady tulip

non-native
Perennial herb (bulb)

Typha Xglauca

native
Perennial herb (aquatic)

TYPHACEAE

Ulmus glabra Wych elm

non-native
Tree

ULMACEAE

Undaria pinnatifida Wakame

• invasive non-native
seaweed

ALARIACEAE

Urochloa texana Texas signalgrass

native
Annual grass

Utricularia inflata Swollen bladderwort

non-native
Perennial herb

Utricularia intermedia Flat leaf bladderwort, Flat leaved bladderwort, Flatleaf bladderwort

• rare native
Annual herb

Utricularia ochroleuca Yellowishwhite bladderwort

• rare native
Perennial herb

Utricularia subulata Zigzag bladderwort

non-native
Annual, Perennial herb

Vaccinium coccineum Siskiyou Mtns. huckleberry

• rare native
Shrub

Vaccinium macrocarpon Cranberry

non-native
Shrub (stem succulent)

Vaccinium shastense ssp. nevadense Sierra Nevada huckleberry

native
Shrub

Vachellia farnesiana var. farnesiana Sweet acacia

non-native
Tree

Vachellia farnesiana var. minuta Sweet acacia

non-native
Tree

Vahlodea atropurpurea Mountain hairgrass

• rare native
Perennial grass

Valeriana pubicarpa Mountain valerian

native
Perennial herb

VALERIANACEAE

Valerianella carinata Corn salad, European cornsalad

non-native
Annual, Perennial herb

VALERIANACEAE

Valerianella locusta Corn salad, Lamb lettuce, Lewiston cornsalad

non-native
Annual herb

VALERIANACEAE

Venidium fastuosum Monarch of the veld, cape daisy

non-native
Annual herb

Verbascum bombyciferum Giant silver mullein

non-native
Annual, Biennial herb

Verbascum olympicum Olympic mullein

non-native
Biennial, Perennial herb

Verbascum speciosum Showy mullein

non-native
Annual, Biennial herb

Verbena bonariensis var. conglomerata Purpletop vervain

non-native
Annual, Biennial herb

Verbena neomexicana Hillside vervain

native
Perennial herb

Verbena rigida Tuberous vervain

non-native
Perennial herb

Verbena scabra Rough vervain, Sandpaper vervain

native
Perennial herb

Veronica beccabunga European speedwell

non-native
Perennial herb

Veronica chamaedrys Germander speedwell

non-native
Perennial herb

Veronica filiformis Thread stalk speedwell, Threadstalk speedwell

non-native
Perennial herb

Veronica hederifolia Ivy leaved speedwell, Ivyleaf speedwell

non-native
Annual herb

Veronica officinalis Common gypsyweed

non-native
Perennial herb

Veronica triphyllos Finger speedwell

non-native
Annual herb

Viburnum opulus European cranberrybush , Guelder-rose

non-native
Shrub

VIBURNACEAE

Viburnum rigidum Canary Laurustinus

non-native
Shrub

VIBURNACEAE

Vicia bithynica Bithynian vetch

non-native
Annual herb

Vicia cracca Bird vetch

non-native
Perennial herb, Vine

Vicia hassei Hasse's vetch

native
Vine

Vicia lathyroides Pea vetch, Spring vetch

non-native
Annual herb, Vine

Vicia pannonica Hungarian vetch

non-native
Annual herb, Vine

Vigna unguiculata Blackeyed pea, Cowpea, Southern pea

non-native
Annual herb

Viola howellii Howell's violet

• rare native
Perennial herb

Viola nephrophylla Leconte violet, Northern bog violet

native
Perennial herb

Viola sororia Common blue violet

native
Perennial herb

Viola tricolor Johnny jumpup, Wild pansy

non-native
Annual, Perennial herb

Viscum album European mistletoe

non-native
Shrub (parasitic)

VISCACEAE

Vitex agnus-castus Lilac chastetree

non-native
Tree, Shrub

Vitis aestivalis Summer grape

non-native
Vine

Vitis arizonica Canyon grape

native
Vine, Shrub

Vitis rupestris Sand grape

non-native
Vine, Shrub

Vitis vinifera Cultivated grape, Wine grape

non-native
Vine, Shrub

Volutaria canariensis Canary island knapweed

non-native
Annual herb

Volutaria muricata Morocco knapweed

non-native
Annual herb

Watsonia marginata Fragrant bugle lily, Watsonia

non-native
Perennial herb

Wislizenia refracta ssp. californica California jackass clover, Spectacle fruit

native
Annual herb

Wislizenia refracta ssp. refracta Jackass clover, Spectacle fruit

• rare native
Annual herb

Wolffia arrhiza Spotless watermeal, Water meal

native
Perennial herb

Wolffiella lingulata Mud midget, Tongueshape bogmat

native
Perennial herb

Wolffiella oblonga Mud midget, Saber bogmat

native
Perennial herb

Woodsia plummerae Plummer's cliff fern, Plummer's woodsia

• rare native
Fern (rhizomatous)

WOODSIACEAE

Xanthisma gracile Annual bristleweed

• rare native
Annual herb

Xanthisma junceum Rush like bristleweed

• rare native
Perennial herb

Yucca baccata var. baccata Banana yucca, blue yucca

native
Shrub

Yucca jaegeriana Eastern joshua tree

native
Shrub

Zeltnera arizonica

non-native
Annual herb

Zinnia elegans Elegant zinnia

non-native
Annual herb

Zizania palustris var. interior Northern wildrice, Wild rice

non-native
Annual, Perennial grass

Ziziphus obtusifolia Lotebush

native
Shrub

Ziziphus obtusifolia var. canescens Gray crucillo, Graythorn, Grey leaved abrojo

native
Shrub

Zostera pacifica Pacific eel grass

native
Perennial herb

ZOSTERACEAE

Zoysia japonica Korean lawngrass

non-native
Perennial grass