Illustrated Plant List

Achyrachaena mollis Blow-Wives

native
Annual herb

Acmispon americanus var. americanus American bird's foot trefoil, American trefoil, Spanish lotus

native
Annual herb

Acmispon glaber var. glaber Deerweed

native
Perennial herb

Acmispon junceus var. junceus Rush lotus

native
Perennial herb

Acmispon maritimus var. maritimus Coastal lotus

native
Annual herb

Acmispon strigosus Strigose lotus

native
Annual herb

Acmispon wrangelianus Wrangel lotus

native
Annual herb

Acourtia microcephala Sacapellote

native
Perennial herb

Adelinia grandis Hound's tongue, Western houndstongue, Adelinia

native
Perennial herb

Adenostoma fasciculatum var. fasciculatum Chamise

native
Tree, Shrub

Adenostoma fasciculatum var. fasciculatum

Adiantum jordanii Adiantum, maiden hair fern

native
Fern

Aesculus californica Buckeye, California buckeye, California horse chestnut

native
Tree

SAPINDACEAE

Agoseris grandiflora var. grandiflora Giant mountain dandelion

native
Perennial herb

Agrostis exarata Spike bentgrass, Spike redtop

native
Perennial grass

Agrostis pallens Leafy bent grass, Diego bent grass, Seashore bentgrass

native
Perennial grass

Allium haematochiton Red skinned onion, Redskin onion

native
Perennial herb (bulb)

ALLIACEAE

Amsinckia intermedia Common fiddleneck

native
Annual herb

Anthemis cotula Dog fennel, Mayweed, dog fennel, Stinking chamomile

• invasive non-native
Annual herb

Antirrhinum kelloggii Climbing snapdragon, Kellogg's snapdragon, Lax snapdragon

native
Annual herb

Aphyllon fasciculatum Clustered broomrape

native
Perennial herb (parasitic)

Apiastrum angustifolium Mock parsley, Wild celery, Wild parsley

native
Annual herb

Aquilegia eximia Serpentine columbine, Sticky columbine, Van Houtte's columbine

native
Perennial herb

RANUNCULACEAE

Arctostaphylos obispoensis Bishop manzanita, Serpentine manzanita

• rare native
Shrub

ERICACEAE

Aristida adscensionis Six weeks three awn, Sixweeks threeawn

native
Annual grass

Artemisia californica California sagebrush, Coast sagebrush, Coastal sage brush

native
Shrub

Artemisia douglasiana California mugwort, Douglas' sagewort

native
Perennial herb

Asclepias fascicularis Narrow leaf milkweed

native
Perennial herb

APOCYNACEAE

Asparagus asparagoides African asparagus fern

• invasive non-native
Vine

ASPARAGACEAE

Aspidotis carlotta-halliae Carlotta hall's lace fern

• rare native
Fern (rhizomatous)

Astragalus curtipes Morro milkvetch, San luis obispo milkvetch, South coast milk vetch

native
Perennial herb

Astragalus gambelianus Dwarf loco weed, Gambel's dwarf milk vetch, Gambel's locoweed

native
Annual herb

Avena barbata Slender oat, Slim oat

• invasive non-native
Annual grass

Avena fatua Wild oat, Wildoat

• invasive non-native
Annual grass

Baccharis glutinosa Douglas' baccharis, Salt marsh baccharis

native
Perennial herb

Baccharis pilularis Coyote brush, Dwarf chaparral broom

native
Shrub

Baccharis salicifolia Mule fat., seep willow, Mule's fat, Mulefat

native
Shrub

Bellardia trixago Mediterranean lineseed

• invasive non-native
Annual herb

Berula erecta Cut leaved water parsnip, Cutleaf water parsnip, Cutleaf waterparsnip

native
Perennial herb

Blitum californicum Small Tree-Mallow

Bloomeria crocea var. crocea Common goldenstar

native
Perennial herb

THEMIDACEAE

Brachypodium hybridum Small Tree-Mallow

Brassica nigra Black mustard

• invasive non-native
Annual herb

Brassica rapa Common mustard, Field mustard, Rape mustard

• invasive non-native
Annual herb

Bromus berteroanus Chilean chess

non-native
Annual grass

Bromus carinatus var. carinatus California brome, Mountain brome

native
Perennial grass

Bromus diandrus Bromegrass, Ripgut brome, Ripgut grass

• invasive non-native
Annual grass

Bromus hordeaceus Soft brome, Soft chess

• invasive non-native
Annual grass

Bromus madritensis Foxtail chess, foxtail brome, Madrid brome, Spanish brome

non-native
Annual grass

Bromus rubens Red brome

• invasive non-native
Annual grass

Calandrinia menziesii red maids, Calandrinia

native
Annual herb

MONTIACEAE

Calendula officinalis Pot marigold

non-native
Annual herb

Calibrachoa parviflora Wild petunia

native
Annual herb

Calochortus clavatus var. clavatus Club haired mariposa lily, Clubhair mariposa lily

• rare native
Perennial herb (bulb)

Calochortus obispoensis San luis mariposa lily

• rare native
Perennial herb (bulb)

Calystegia macrostegia ssp. cyclostegia Coast morning glory, Island false bindweed

native
Perennial herb, Vine

CONVOLVULACEAE

Calystegia subacaulis ssp. episcopalis Cambria morning glory, San luis obispo county morning glory

• rare native
Perennial herb (rhizomatous)

CONVOLVULACEAE

Camissoniopsis intermedia Intermediate sun cups

native
Annual herb

Capsella bursa-pastoris Shepherd's purse

non-native
Annual herb

Cardamine californica California toothwort, milkmaids

native
Perennial herb

Carduus pycnocephalus Italian thistle

• invasive non-native
Annual herb

Carex nudata Dudley's sedge, Naked sedge, Torrent sedge

native
Perennial grasslike herb

Carex serratodens Bifid sedge, Two tooth sedge

native
Perennial grasslike herb

Carex spissa San diego sedge

native
Perennial grasslike herb

Carthamus lanatus Woolly distaff thistle

• invasive non-native
Annual herb

Castilleja affinis ssp. affinis Coast indian paintbrush

native
Perennial herb

Castilleja attenuata Narrow leaved owl's clover, Valley tassels

native
Annual herb

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

native
Annual herb

Castilleja exserta ssp. exserta Exserted indian paintbrush, Pale purple owlclover, Purple owl's clover

native
Annual herb

Castilleja foliolosa Texas paintbrush, Woolly indian paintbrush

native
Perennial herb

Ceanothus cuneatus var. ramulosus Buck brush

native
Shrub

RHAMNACEAE

Cenchrus setaceus Small Tree-Mallow

Centaurea calcitrapa Purple star thistle, Red star thistle

• invasive non-native
Annual, Perennial herb

Centaurea melitensis Maltese star thistle, Napa star thistle, Tocalote

• invasive non-native
Annual herb

Centaurea solstitialis Barnaby's thistle, Yellow star thistle

• invasive non-native
Annual herb

Cerastium glomeratum Large mouse ears, Mouseear chickweed, Sticky chickweed

non-native
Annual herb

Cercocarpus betuloides var. betuloides Birch leaf mountain mahogany

native
Tree, Shrub

Chenopodiastrum murale Small Tree-Mallow

Chenopodium album Lamb's quarters, Lambs quarters, White goosefoot

non-native
Annual herb

CHENOPODIACEAE

Chlorogalum pomeridianum var. minus Dwarf soaproot, Wavyleaf soap plant

• rare native
Perennial herb (bulb)

AGAVACEAE

Chlorogalum pomeridianum var. pomeridianum Common soaproot, Wavyleaf soap plant

native
Perennial herb

AGAVACEAE

Chlorogalum pomeridianum var. pomeridianum

Chondrilla juncea Hogbite, Skeleton weed

• invasive non-native
Perennial herb

Chorizanthe breweri Brewer's spineflower, San luis obispo spineflower

• rare native
Annual herb

Cirsium vulgare Bull thistle

• invasive non-native
Perennial herb

Clarkia bottae Botta's clarkia, Punch bowl godetia

native
Annual herb

Claytonia exigua ssp. exigua Little spring beauty, Serpentine springbeauty, Viridis

native
Annual herb

MONTIACEAE

Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce

native
Annual herb

MONTIACEAE

Clinopodium douglasii Yerba buena

native
Perennial herb

Collinsia heterophylla Purple chinese houses

native
Annual herb

Conium maculatum Poison hemlock

• invasive non-native
Perennial herb

Corethrogyne filaginifolia Common sandaster

native
Perennial herb

Cortaderia jubata Pampas grass, Purple pampas grass

• invasive non-native
Perennial grass

Cotula australis Australian brass buttons, Australian cotula, Australian waterbuttons

non-native
Annual herb

Crassula connata Pigmy weed, Sand pygmy weed, Sand pygmyweed

native
Annual herb

CRASSULACEAE

Crocanthemum scoparium peak rush-rose, broom rush-rose

native
Shrub

CISTACEAE

Croton setiger Turkey-mullein

native
Annual herb

Cryptantha muricata var. muricata Showy prickly-nut cryptantha

native
Annual herb

Cynodon dactylon Bermuda grass, Bermudagrass

• invasive non-native
Perennial grass

Cyperus eragrostis Tall cyperus, Tall flatsedge

native
Perennial grasslike herb

Cyperus niger Black cyperus, Black flatsedge, Brown cyperus

native
Perennial grasslike herb

Dactylis glomerata Orchard grass, Orchardgrass

• invasive non-native
Perennial grass

Danthonia californica California oatgrass

native
Perennial grass

Datura stramonium Jimson weed, Jimsonweed

non-native
Annual herb

Daucus pusillus American wild carrot, Rattlesnake weed

native
Annual herb

Deinandra corymbosa Coastal tarweed

native
Annual herb

Delairea odorata Cape ivy

• invasive non-native
Perennial herb

Delphinium parryi ssp. eastwoodiae Eastwood's larkspur

• rare native
Perennial herb

RANUNCULACEAE

Diplacus aurantiacus var. aurantiacus Orange Bush Monkeyflower

native
Shrub

PHRYMACEAE

Dipsacus sativus Fuller's teasel, Indian teasel

• invasive non-native
Annual, Biennial herb

DIPSACACEAE

Dipterostemon capitatus ssp. capitatus Blue dicks

native
Perennial herb

THEMIDACEAE

Dittrichia graveolens Stinkwort

• invasive non-native
Annual herb

Dryopteris arguta California wood fern, Coastal wood fern, Shield fern

native
Fern

DRYOPTERIDACEAE

Dudleya abramsii ssp. murina San Luis Obispo dudleya

• rare native
Perennial herb

CRASSULACEAE

Dudleya lanceolata Lanceleaf liveforever, Southern california dudleya

native
Perennial herb

CRASSULACEAE

Dysphania ambrosioides Mexican tea

non-native
Annual, Perennial herb

CHENOPODIACEAE

Eleocharis macrostachya Common spikerush, Creeping spike rush, Pale spikerush

native
Perennial grasslike herb

Elymus condensatus Giant wild rye

native
Perennial grass

Elymus glaucus ssp. glaucus Blue wild rye, Blue wildrye, Western rye grass

native
Perennial grass

Elymus multisetus Big squirreltail grass

native
Perennial grass

Elymus triticoides Beardless wild rye

native
Perennial grass

Emmenanthe penduliflora var. penduliflora Whispering bells, Whisperingbells

native
Annual herb

Emmenanthe penduliflora var. penduliflora

Epilobium canum ssp. canum California fuchsia, Hummingbird trumpet

native
Perennial herb

Epilobium ciliatum ssp. watsonii Fringed willowherb, Watson's willowherb, Willow herb

native
Perennial herb

Equisetum hyemale ssp. affine Giant scouring rush

native
Fern

EQUISETACEAE

Equisetum telmateia ssp. braunii Giant horse tail, Giant horsetail

native
Fern

EQUISETACEAE

Eragrostis mexicana ssp. virescens Mexican lovegrass, Orcutt's eragrostis

native
Annual grass

Erigeron bonariensis Flax-leaved horseweed

non-native
Annual herb

Erigeron canadensis Canada horseweed

native
Annual herb

Erigeron foliosus var. foliosus Leafy fleabane, Thread stemmed fleabane

native
Perennial herb, Shrub

Erigeron philadelphicus Philadelphia fleabane

native
Perennial herb

Erigeron sumatrensis Tropical horseweed

non-native
Annual herb

Eriogonum elongatum var. elongatum Long stemmed buckwheat

native
Perennial herb

Eriogonum fasciculatum var. fasciculatum California buckwheat, Eastern mojave buckwheat

native
Shrub

Eriogonum fasciculatum var. fasciculatum

Eriophyllum confertiflorum var. confertiflorum Golden yarrow, Yellow yarrow

native
Shrub

Eriophyllum confertiflorum var. confertiflorum

Erodium botrys Big heron bill, Broad leaf filaree, Long beaked filaree

non-native
Annual herb

Erodium cicutarium Coastal heron's bill, Red stemmed filaree, Redstem stork's bill

• invasive non-native
Annual herb

Erodium moschatum Musky stork's bill, White stemmed filaree, Whitestem filaree

• invasive non-native
Annual herb

Erythranthe cardinalis Cardinal monkey flower

native
Perennial herb

PHRYMACEAE

Erythranthe grandis

native
Perennial

PHRYMACEAE

Eschscholzia caespitosa Foothill poppy, Tufted eschscholzia, Tufted poppy

native
Annual herb

PAPAVERACEAE

Eschscholzia californica California poppy

native
Annual, Perennial herb

PAPAVERACEAE

Eucalyptus globulus Blue gum, Tasmanian bluegum

• invasive non-native
Tree

MYRTACEAE

Eucrypta chrysanthemifolia var. chrysanthemifolia Common eucrypta, Spotted hideseed

native
Annual herb

Eucrypta chrysanthemifolia var. chrysanthemifolia

Eulobus californicus California primrose

native
Annual herb

Euphorbia peplus Petty spurge

non-native
Annual herb

Euphorbia spathulata Reticulate seeded spurge, Warty spurge

native
Annual herb

Eurybia radulina Roughleaf aster

native
Perennial herb

Festuca microstachys Small fescue

native
Annual grass

Festuca myuros Rattail sixweeks grass

• invasive non-native
Annual grass

Festuca perennis Italian rye grass

• invasive non-native
Annual, Perennial grass

Foeniculum vulgare Biscuit root, Sweet fennel

• invasive non-native
Perennial herb

Frangula californica ssp. californica California coffeeberry

native
Shrub

RHAMNACEAE

Fremontodendron californicum California flannelbush, California fremontia, Flannel bush

native
Shrub

MALVACEAE

Fritillaria affinis Checker lily, Mission bells

native
Perennial herb (bulb)

Fritillaria biflora var. biflora Chocolate lily

native
Perennial herb (bulb)

Galium andrewsii Needlemat galium, Phlox leaved bedstraw, Phloxleaf bedstraw

native
Perennial herb

RUBIACEAE

Galium aparine Cleavers, Common bedstraw, Goose grass

native
Annual herb

RUBIACEAE

Galium porrigens var. porrigens Climbing bedstraw, Graceful bedstraw, Oval leaved bedstraw

native
Vine, Shrub

RUBIACEAE

Gastridium phleoides Nit grass

non-native
Annual grass

Geranium dissectum Cranesbill, Cut leaved geranium, Cutleaf geranium

• invasive non-native
Annual herb

Gilia achilleifolia ssp. achilleifolia California gilia

native
Annual herb

Gilia achilleifolia ssp. multicaulis Many stemmed california gilia, Many stemmed gilia

native
Annual herb

Gilia clivorum Many stemmed gilia, Purple spot gilia, Purplespot gilia

native
Annual herb

Grindelia hirsutula Gumweed, Hairy gumweed

native
Perennial herb

Hazardia squarrosa var. squarrosa Saw toothed goldenbush, Sawtooth goldenbush

native
Shrub

Hedypnois rhagadioloides Crete weed

non-native
Annual herb

Helenium puberulum Rosilla, Sneezeweed

native
Perennial herb

Helianthus annuus Common sunflower, Hairy leaved sunflower, Sunflower

native
Annual herb

Hemizonia congesta ssp. luzulifolia Hayfield tarweed, Woodrush tarweed

native
Annual herb

Hesperevax sparsiflora var. sparsiflora Erect dwarf cudweed, Few flowered evax

native
Annual herb

Hesperocnide tenella Western nettle, Western stinging nettle, Western stingingnettle

native
Annual herb

URTICACEAE

Hesperolinon micranthum Common dwarf flax, Small flower western flax, Small flowered dwarf flax

native
Annual herb

LINACEAE

Hesperoyucca whipplei Chaparral yucca

native
Shrub

AGAVACEAE

Heteromeles arbutifolia Christmas berry, Toyon

native
Shrub

Heterotheca grandiflora Telegraph weed, Telegraphweed

native
Annual, Perennial herb

Hirschfeldia incana Mediterranean hoary mustard, Short podded mustard, Summer mustard

• invasive non-native
Perennial herb

Holodiscus discolor Cream bush, Ocean spray, Oceanspray

native
Shrub

Hordeum brachyantherum ssp. californicum California barley, California meadow barley

native
Perennial grass

Hordeum brachyantherum ssp. californicum

Hordeum depressum Alkali barley, Dwarf barley, Low barley

native
Annual grass

Hordeum marinum subsp gussoneanum Small Tree-Mallow

Hordeum murinum ssp. leporinum Farmer's foxtail, Foxtail barley, Hare barley

non-native
Annual grass

Hordeum vulgare Common barley

non-native
Annual grass

Hypochaeris glabra Smooth cat's ear

• invasive non-native
Annual herb

Juglans hindsii Northern california black walnut

• rare native
Tree

JUGLANDACEAE

Juncus articulatus ssp. articulatus Jointed rush

native
Perennial grasslike herb

Juncus bufonius var. bufonius Toad rush

native
Annual grasslike herb

Juncus effusus ssp. pacificus Pacific rush

native
Perennial grasslike herb

Juncus patens Common rush, Spreading rush

native
Perennial grasslike herb

Juncus phaeocephalus var. phaeocephalus Brown headed rush, Brownhead rush

native
Perennial grasslike herb

Juncus usitatus

non-native
Perennial grasslike herb

Juncus xiphioides Iris leaved rush, Irisleaf rush

native
Perennial grasslike herb

Keckiella cordifolia Climbing penstemon, Heart leaved keckiella, Heartleaf keckiella

native
Shrub

Koeleria macrantha June grass, Prairie junegrass

native
Perennial grass

Lamarckia aurea Goldentop grass

non-native
Annual grass

Lasthenia gracilis Needle goldfields

native
Annual herb

Lathyrus vestitus var. vestitus Common pacific pea, Hillside pea, Wild sweetpea

native
Perennial herb

Layia jonesii Jones' tidytips, Jones's layia

• rare native
Annual herb

Layia platyglossa Coastal tidytips

native
Annual herb

Lepidium didymum Lesser swine cress

non-native
Annual herb

Lepidium nitidum Peppergrass, Shining pepper grass, Shining pepperweed

native
Annual herb

Lepidium strictum Peppergrass, Prostrate pepper grass, Upright pepperweed

native
Annual herb

Leptochloa fusca ssp. fascicularis Bearded sprangletop

native
Annual grass

Leptosiphon parviflorus Variable linanthus

native
Annual herb

Leptosyne douglasii Douglas' coreopsis

native
Annual herb

Lilium pardalinum ssp. pardalinum Leopard lily

native
Perennial herb

Lithophragma heterophyllum Hill star, Hillside woodland star

native
Perennial herb

SAXIFRAGACEAE

Logfia gallica Narrowleaf cottonrose

non-native
Annual herb

Lomatium caruifolium var. caruifolium Alkali desertparsley, Caraway leaved lomatium

native
Perennial herb

Lomatium dasycarpum ssp. dasycarpum Woolly fruited lomatium, Woollyfruit desertparsley

native
Perennial herb

Lomatium parvifolium Coastal biscuitroot, Small leaved lomatium

• rare native
Perennial herb

Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel

native
Perennial herb

Lupinus albifrons var. abramsii Abrams' lupine

• rare native
Perennial herb

Lupinus bicolor Annual lupine, Bicolored lupine, Miniature lupine

native
Annual, Perennial herb

Lupinus hirsutissimus Stinging annual lupine, Stinging lupine

native
Annual herb

Lupinus nanus Sky lupine

native
Annual herb

Lupinus succulentus Arroyo lupine, Hollowleaf annual lupine, Succulent lupine

native
Annual herb

Lupinus truncatus Blunt leaved lupine, Collared annual lupine, Truncate leaf lupine

native
Annual herb

Madia elegans Common madia

native
Annual herb

Madia gracilis Grassy tarweed, Gumweed madia, Slender tarweed

native
Annual herb

Madia sativa Chile tarweed, Coast tarweed, Coastal tarweed

native
Annual herb

Malva parviflora Cheeseweed mallow

non-native
Annual herb

MALVACEAE

Marah fabacea California man-root

native
Perennial herb, Vine

CUCURBITACEAE

Marrubium vulgare White horehound

• invasive non-native
Perennial herb

Matricaria discoidea Pineapple weed

native
Annual herb

Medicago polymorpha Bur clover, Bur medic, California burclover

• invasive non-native
Annual herb

Melica californica California melicgrass

native
Perennial grass

Melica imperfecta California melic, Coast range melic, Small flowered melica

native
Perennial grass

Melica torreyana Torrey melic, Torrey's melica, Torrey's melicgrass

native
Perennial grass

Melilotus albus White sweetclover

• invasive non-native
Annual, Biennial herb

Melilotus indicus Annual yellow sweetclover, Sourclover

non-native
Annual herb

Micranthes californica Greene's saxifrage

native
Perennial herb

SAXIFRAGACEAE

Micropus californicus var. californicus Q tips, Slender cottonweed

native
Annual herb

Microseris bigelovii Coast microseris, Coastal silverpuffs

native
Annual herb

Microseris douglasii ssp. tenella Douglas' silverpuffs, Short scaled microseris

native
Annual herb

Mirabilis laevis var. crassifolia California four o'clock

native
Perennial herb

NYCTAGINACEAE

Monardella villosa ssp. obispoensis San luis obispo coyote mint

native
Perennial herb

Muhlenbergia microsperma Annual muhly, Littleseed muhly

native
Annual grass

Nasturtium officinale Watercress

native
Perennial herb (aquatic)

Nicotiana glauca Tree tobacco

• invasive non-native
Tree, Shrub

Opuntia ficus-indica Mission cactus, Tuna cactus

non-native
Shrub (stem succulent)

CACTACEAE

Oxalis corniculata Creeping wood sorrel, Creeping woodsorrel, Yellow sorrel

• invasive non-native
Perennial herb

Oxalis incarnata Crimson woodsorrel

non-native
Perennial herb

Oxalis pes-caprae Bermuda buttercup, Sourgrass

• invasive non-native
Perennial herb

Oxalis pilosa Hairy wood sorrel

native
Annual herb

Paeonia californica California peony

native
Perennial herb

PAEONIACEAE

Paspalum dilatatum Dallis grass, Dallisgrass

non-native
Perennial grass

Pedicularis densiflora Warrior's plume, Indian warrior

native
Perennial herb

Pellaea andromedifolia Coffee cliffbrake, Coffee fern

native
Fern

Pentagramma triangularis ssp. triangularis Gold back fern

native
Fern

Pentagramma triangularis ssp. triangularis

Perideridia pringlei Adobe yampah

• rare native
Perennial herb

Persicaria lapathifolia Common knotweed

native
Annual herb

Phacelia distans Common phacelia, Distant phacelia, Wild heliotrope

native
Annual herb

Phacelia imbricata ssp. imbricata Imbricate Phacelia

native
Annual herb

Phalaris aquatica Bulbous canarygrass, Harding grass

• invasive non-native
Perennial grass

Phalaris minor Little seed canarygrass, Littleseed canarygrass, Mediterranean canarygrass

non-native
Annual grass

Phoenix canariensis Canary island date palm

• invasive non-native
Tree

ARECACEAE

Phoradendron villosum ssp. villosum Mistletoe

native
Shrub (parasitic)

VISCACEAE

Pickeringia montana var. montana Montana chaparral pea

native
Shrub

Pistacia atlantica Mt. atlas mastic tree, Pistachio

• invasive non-native
Tree

Plagiobothrys nothofulvus Rusty haired popcorn flower, Rusty popcorn flower, Rusty popcornflower

native
Annual herb

Plantago erecta California plantain, Dotseed plantain, Foothill plantain

native
Annual herb

Plantago lanceolata English plantain, Narrow leaved plantain, Ribgrass

• invasive non-native
Perennial herb

Plantago major Common plantain

non-native
Perennial herb

Plantago subnuda Mexican plantain, Naked plantain, Tall coastal plantain

native
Perennial herb

Platanus racemosa California sycamore, Western sycamore

native
Tree

PLATANACEAE

Poa annua Annual blue grass, Annual bluegrass

non-native
Annual grass

Poa pratensis Kentucky blue grass, Kentucky bluegrass

• invasive non-native
Perennial grass

Poa secunda ssp. secunda One sided blue grass, Pine bluegrass, Sandberg's bluegrass

native
Perennial grass

Polygonum aviculare Prostrate knotweed

non-native
Annual, Perennial herb

Polypodium californicum California polypody

native
Fern

POLYPODIACEAE

Polypodium calirhiza Acrid fern, Licorice fern, Nested polypody

native
Fern

POLYPODIACEAE

Polypogon interruptus Ditch beard grass, Ditch rabbitsfoot grass

non-native
Perennial grass

Polypogon monspeliensis Annual beard grass, Rabbitsfoot grass

• invasive non-native
Annual grass

Polypogon viridis Water beard grass

non-native
Perennial grass

Populus fremontii ssp. fremontii Fremont cottonwood

native
Tree

Populus trichocarpa Black cottonwood

native
Tree

Portulaca oleracea Common purslane, Little hogweed, Purslane

non-native
Annual herb

PORTULACACEAE

Potentilla anserina ssp. pacifica Pacific potentilla, Silverweed

native
Perennial herb

Primula clevelandi Small Tree-Mallow

Prunus dulcis Domestic almond, Sweet almond

non-native
Tree

Prunus ilicifolia var. ilicifolia Holly leaf cherry, Hollyleaf cherry

native
Tree, Shrub

Pseudognaphalium biolettii Two-color rabbit-tobacco

native
Perennial herb

Pseudognaphalium californicum Ladies' tobacco

native
Annual, Perennial herb

Pseudognaphalium luteoalbum Jersey cudweed

non-native
Annual herb

Pseudognaphalium stramineum Cottonbatting plant

native
Perennial herb

Psilocarphus tenellus Slender woolly marbles, Slender woollyheads

native
Annual herb

Pteridium aquilinum var. pubescens Hairy brackenfern, Western bracken fern

native
Fern

DENNSTAEDTIACEAE

Pterostegia drymarioides Fairy mist, Woodland threadstem

native
Annual herb

Quercus agrifolia var. agrifolia California live oak, Coast live oak

native
Tree

Quercus berberidifolia Inland scrub oak

native
Tree

Quercus douglasii Blue oak

native
Tree

Quercus durata var. durata Leather oak

native
Shrub

Quercus lobata California white oak, Valley oak

native
Tree

Ranunculus californicus California buttercup

native
Perennial herb

RANUNCULACEAE

Rhamnus crocea Redberry buckthorn

native
Shrub

RHAMNACEAE

Rhus integrifolia Lemonade berry, Lemonade sumac

native
Shrub

Ribes malvaceum var. indecorum White flowering currant, Whiteflower currant

native
Shrub

GROSSULARIACEAE

Ribes malvaceum var. malvaceum Chaparral currant

native
Shrub

GROSSULARIACEAE

Ribes speciosum Fuchsia flowered gooseberry, Fuchsiaflower gooseberry

native
Shrub

GROSSULARIACEAE

Ricinus communis Castor bean, Castorbean

• invasive non-native
Shrub

Rosa spithamea Ground rose, Sonoma rose

native
Shrub

Rubus ursinus California blackberry, Pacific blackberry

native
Vine, Shrub

Rumex conglomeratus Clustered dock, Green dock

non-native
Perennial herb

Rumex crispus Curly dock, Curly leaved dock, Rhubarb

• invasive non-native
Perennial herb

Rumex fueginus Golden dock

native
Annual, Perennial herb

Rumex pulcher Fiddle dock

non-native
Perennial herb

Sabulina douglasii Douglas' Stitchwort

native
Annual herb

Salix exigua var. hindsiana Sandbar willow

native
Tree, Shrub

Salix laevigata Polished willow, Red willow

native
Tree

Salix lasiolepis Arroyo willow

native
Tree, Shrub

Salsola australis Russian thistle

non-native
Annual herb

CHENOPODIACEAE

Salvia columbariae Chia sage

native
Annual herb

Salvia mellifera Black sage

native
Shrub

Salvia spathacea Hummingbird sage

native
Perennial herb

Sambucus nigra ssp. caerulea Blue elderberry

native
Tree, Shrub

VIBURNACEAE

Sanicula arguta Sharp toothed sanicle, Sharp toothed snakeroot, Sharptooth blacksnakeroot

native
Perennial herb

Sanicula crassicaulis Gamble weed, Pacific blacksnakeroot, Pacific sanicle

native
Perennial herb

Sanicula hoffmannii Hoffmann's blacksnakeroot, Hoffmann's sanicle, Hoffmann's snakeroot

• rare native
Perennial herb

Sanicula laciniata Coast sanicle, Coastal blacksnakeroot

native
Perennial herb

Scandix pecten-veneris Shepherd's needle, Shepherdsneedle, Venus' needle

non-native
Annual herb, Vine

Schinus molle Peruvian pepper tree, Peruvian peppertree

• invasive non-native
Tree

Schoenoplectus americanus Chairmaker's bulrush

native
Perennial grasslike herb

Schoenoplectus californicus California bulrush

native
Perennial grasslike herb

Scirpus microcarpus Panicled bulrush, Small fruited bulrush

native
Perennial grasslike herb

Scrophularia californica ssp. californica California bee plant, California figwort

native
Perennial herb

SCROPHULARIACEAE

Scrophularia californica ssp. californica

Selaginella bigelovii Bigelow's moss fern, Bigelow's spike moss, Bushy spikemoss

native

SELAGINELLACEAE

Senecio aphanactis California groundsel, Chaparral ragwort, Rayless ragwort

• rare native
Annual herb

Senecio vulgaris Common groundsel, Old man in the spring, Old man of spring

non-native
Annual herb

Setaria pumila Yellow bristlegrass

non-native
Annual grass

Sidalcea malviflora ssp. laciniata Dwarf checkerbloom, Laciniate checker mallow

native
Perennial herb (rhizomatous)

MALVACEAE

Silene antirrhina Sleepy catch fly, Sleepy catchfly, Sleepy silene

native
Annual herb

Silene gallica Common catchfly, Windmill pink

non-native
Annual herb

Silene laciniata ssp. laciniata Cardinal catchfly

native
Perennial herb

Silybum marianum Blessed milkthistle, Milk thistle

• invasive non-native
Annual, Perennial herb

Sinapis arvensis Charlock mustard

• invasive non-native
Annual herb

Sisyrinchium bellum Western blue eyed grass

native
Perennial herb

IRIDACEAE

Solanum douglasii Douglas' nightshade, Greenspot nightshade

native
Perennial herb

Solanum umbelliferum var. xanti Blue witch nightshade, Bluewitch nightshade

native
Shrub

Solidago confinis Southern goldenrod

native
Perennial herb

Solidago velutina ssp. californica California goldenrod, Oreja de liebre

native
Perennial herb

Soliva sessilis Common soliva, Field burrweed, South american soliva

non-native
Annual herb

Sonchus asper ssp. asper Prickly sow thistle, Sow thistle

• invasive non-native
Annual herb

Sonchus oleraceus Common sow thistle, Common sowthistle, Sow thistle

non-native
Annual herb

Sorghum halepense Johnsongrass

• invasive non-native
Perennial grass

Spergula arvensis Corn spurry

non-native
Annual herb

Spergularia rubra Purple sand spurry, Red sandspurry, Ruby sandspurry

non-native
Annual, Perennial herb

Stachys bullata California hedge nettle, California hedgenettle, Southern hedge nettle

native
Perennial herb

Stachys pycnantha Short spike hedge nettle, Shortspike hedgenettle

native
Perennial herb

Stebbinsoseris heterocarpa Grassland stebbinsoseris

native
Annual herb

Stellaria media Chickweed

non-native
Annual herb

Stephanomeria cichoriacea Chicory leaved stephanomeria, Chicoryleaf wirelettuce, Fort tejon milk aster

native
Perennial herb

Stephanomeria exigua ssp. carotifera White plume stephanomeria, Whiteplume wirelettuce

native
Perennial herb

Stipa lepida Foothill needle grass

native
Perennial grass

Stipa miliacea var. miliacea Smilo grass

• invasive non-native
Perennial grass

Stipa pulchra Purple needle grass

native
Perennial grass

Streptanthus glandulosus ssp. glandulosus Bristly jewelflower

native
Annual herb

Streptanthus glandulosus ssp. glandulosus

Streptanthus lasiophyllus Small Tree-Mallow

Stylocline gnaphaloides Everlasting nest straw, Everlasting stylocline, Mountain neststraw

native
Annual herb

Symphoricarpos mollis Creeping snowberry, Trailing snowberry

native
Shrub

CAPRIFOLIACEAE

Symphyotrichum chilense California aster, Pacific aster

native
Perennial herb

Taraxacum officinale Common dandelion, Dandelion, Red seeded dandelion

• invasive non-native
Perennial herb

Tauschia hartwegii Hartweg's tauschia, Hartweg's umbrellawort, Tauschia

native
Perennial herb

Thysanocarpus laciniatus Common lace pod, Mountain fringepod, Narrow leaved fringe pod

native
Annual herb

Torilis arvensis Field hedge parsley, Spreading hedgeparsley, Tall Sock-Destroyer

• invasive non-native
Annual herb

Torilis nodosa Hedge parsley, Knotted hedge parsley, Knotted hedgeparsley

non-native
Annual herb

Toxicodendron diversilobum Poison oak, Poisonoak, Western Poison Oak

native
Vine, Shrub

Toxicoscordion fremontii Fremont's star lily, Fremont's death camas

native
Perennial herb

MELANTHIACEAE

Tragopogon porrifolius Purple salsify

non-native
Perennial herb

Trifolium barbigerum Bearded clover

native
Annual herb

Trifolium depauperatum var. amplectens Balloon sack clover, Pale bladder clover, Pale sack clover

native
Annual herb

Trifolium hirtum Rose clover

• invasive non-native
Annual herb

Trifolium incarnatum Crimson clover

non-native
Annual herb

Trifolium subterraneum Sub clover, Subterranean clover

non-native
Annual herb

Trifolium variegatum Variegated clover, White tipped clover, Whitetip clover

native
Annual herb

Trifolium willdenovii Tomcat clover

native
Annual herb

Trifolium wormskioldii Coast clover, Cow clover, Cows clover

native
Perennial herb

Triphysaria eriantha ssp. eriantha Butter 'n' eggs, Johnny tuck

native
Annual herb

Tropaeolum majus Garden nasturtium, Nasturtium

• invasive non-native
Annual herb, Vine

TROPAEOLACEAE

Typha domingensis Narrowleaf cattail, Southern cattail

native
Perennial herb

TYPHACEAE

Typha latifolia Broadleaf cattail, Common cattail, Soft flag

native
Perennial herb (aquatic)

TYPHACEAE

Umbellularia californica Bay laurel, California bay, California laurel, bay tree

native
Tree

LAURACEAE

Uropappus lindleyi Silver puffs, Uropappus

native
Annual herb

Urtica dioica ssp. holosericea Giant creek nettle, Hoary nettle, Mountain nettle

native
Perennial herb

URTICACEAE

Verbascum thapsus Common mullein, Woolly mullein

• invasive non-native
Perennial herb

SCROPHULARIACEAE

Verbena lasiostachys var. lasiostachys Vervain, Western vervain

native
Perennial herb

VERBENACEAE

Veronica anagallis-aquatica Water speedwell

non-native
Perennial herb

Vicia americana ssp. americana American vetch

native
Perennial herb, Vine

Vicia sativa ssp. sativa Garden vetch, Pubescent common vetch, Spring vetch

non-native
Annual herb, Vine

Vicia villosa ssp. varia Smooth vetch, Thick fruited vetch, Winter vetch

non-native
Annual herb, Vine

Vinca major Bigleaf periwinkle, Greater periwinkle, Vinca

• invasive non-native
Perennial herb

APOCYNACEAE

Viola pedunculata California golden violet, Johnny jump up

native
Perennial herb

VIOLACEAE

Xanthium spinosum Spiny clotbur, Spiny cockleburr

non-native
Annual herb

Xanthium strumarium Rough cockleburr

native
Annual herb

Yabea microcarpa California hedge parsley, False carrot

native
Annual herb