Laguna Lake Park and Open Space 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 brachycarpus hill lotus

native
Annual 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

Agrostis exarata Spike bentgrass, Spike redtop

native
Perennial grass

Alisma triviale Northern water plantain

native
Perennial herb (aquatic)

ALISMATACEAE

Allium lacunosum var. lacunosum Pitted onion

native
Perennial herb (bulb)

ALLIACEAE

Amaranthus albus Pigweed amaranth, Tumbleweed

non-native
Annual herb

Amaranthus blitoides Mat amaranth, Prostrate amaranth, Prostrate pigweed

native
Annual herb

Amaranthus deflexus Amaranth, Large fruited amaranth, Largefruit amaranth

non-native
Annual herb

Amaranthus hybridus Slender pigweed, Slim amaranth

non-native
Annual herb

Amaranthus powellii Powell's amaranth

native
Annual herb

Ambrosia acanthicarpa Annual bursage, Annual burweed

native
Annual herb

Ambrosia psilostachya Ragweed, Western ragweed

native
Perennial herb

Amsinckia intermedia Common fiddleneck

native
Annual herb

BORAGINACEAE

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

• invasive non-native
Annual herb

Apiastrum angustifolium Mock parsley, Wild celery, Wild parsley

native
Annual herb

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

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

Athysanus pusillus Athysanus, Common sandweed, Dwarf athysanus

native
Annual herb

Atriplex prostrata Fat-hen

non-native
Annual herb

Atriplex semibaccata Australian saltbush

• invasive non-native
Perennial herb

Avena barbata Slender oat, Slim oat

• invasive non-native
Annual grass

Avena fatua Wild oat, Wildoat

• invasive non-native
Annual grass

Azolla filiculoides American water fern, mosquito fern, Mosquito fern, Pacific mosquitofern

native
Fern

AZOLLACEAE

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

Bidens pilosa Hairy beggarticks

non-native
Annual herb

Bloomeria crocea var. aurea Common goldenstar

native
Perennial herb

THEMIDACEAE

Bolboschoenus maritimus ssp. paludosus Saltmarsh bulrush

native
Perennial grasslike herb

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 catharticus var. catharticus Rescue grass

non-native
Annual, 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 rubens Red brome

• invasive non-native
Annual grass

Calandrinia menziesii [Calandrinia ciliata] Small Tree-Mallow

Calibrachoa parviflora Wild petunia

native
Annual herb

Calochortus argillosus Clay mariposa lily

native
Perennial herb (bulb)

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

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

• rare native
Perennial herb (rhizomatous)

Cardamine californica California toothwort, milkmaids

native
Perennial herb

Carduus pycnocephalus Italian thistle

• invasive non-native
Annual herb

Carex praegracilis Clustered field sedge, Field sedge

native
Perennial grasslike herb

Carex serratodens Bifid sedge, Two tooth sedge

native
Perennial grasslike herb

Carpobrotus edulis Hottentot fig, Iceplant, Sea fig

• invasive non-native
Perennial herb

AIZOACEAE

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

native
Annual herb

Castilleja minor ssp. spiralis Lesser indian paintbrush, Lesser paintbrush

native
Annual herb

Cenchrus clandestinus Kikuyu grass, Kikuyugrass

• invasive non-native
Perennial grass

Cenchrus longisetus Feathertop

• invasive non-native
Perennial grass

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

Centromadia parryi ssp. congdonii Congdon's tarplant

• rare native
Annual herb

Cerastium glomeratum Large mouse ears, Mouseear chickweed, Sticky chickweed

non-native
Annual herb

Chenopodiastrum murale [Chenopodium murale] Small Tree-Mallow

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

non-native
Annual herb

Chlorogalum pomeridianum var. pomeridianum Common soaproot, Wavyleaf soap plant

native
Perennial herb

AGAVACEAE

Chlorogalum pomeridianum var. pomeridianum

Chorizanthe breweri Brewer's spineflower, San luis obispo spineflower

• rare native
Annual herb

Chorizanthe palmeri Palmer's spineflower

• rare native
Annual herb

Cichorium intybus Chicory

non-native
Perennial herb

Cirsium fontinale var. obispoense Chorro creek bog thistle

• rare native
Perennial herb

Cirsium vulgare Bull thistle

• invasive non-native
Perennial herb

Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce

native
Annual herb

MONTIACEAE

Collinsia heterophylla Purple chinese houses

native
Annual herb

Conium maculatum Poison hemlock

• invasive non-native
Perennial herb

Convolvulus arvensis Field bindweed, Orchard morningglory

• invasive non-native
Perennial herb, Vine

Corethrogyne filaginifolia Common sandaster

native
Perennial herb

Cornus sericea ssp. occidentalis Western dogwood

native
Shrub

CORNACEAE

Cortaderia jubata Pampas grass, Purple pampas grass

• invasive non-native
Perennial grass

Cotula coronopifolia Brass buttons, Common brassbuttons

• invasive non-native
Perennial herb

Crassula connata Pigmy weed, Sand pygmy weed, Sand pygmyweed

native
Annual herb

CRASSULACEAE

Croton setiger Turkey-mullein

native
Annual herb

Crypsis schoenoides Swamp grass, Swamp picklegrass, Swamp pricklegrass

non-native
Annual grass

Cryptantha clevelandii var. florosa Coastal cryptantha

native
Annual herb

BORAGINACEAE

Cuscuta californica var. californica California dodder, Chaparral dodder, Short flowered dodder

native
Annual herb, Vine (parasitic)

Cuscuta campestris Field dodder

native
Annual herb, Vine (parasitic)

Cynodon dactylon Bermuda grass, Bermudagrass

• invasive non-native
Perennial grass

Cyperus eragrostis Tall cyperus, Tall flatsedge

native
Perennial grasslike herb

Cyperus involucratus Umbrella plant, Unbrella plant

non-native
Perennial grasslike herb

Danthonia californica California oatgrass

native
Perennial grass

Datura stramonium Jimson weed, Jimsonweed

non-native
Annual herb

Deinandra fasciculata Clustered tarweed

native
Annual herb

Deinandra increscens ssp. increscens Grassland tarweed

native
Annual herb

Delphinium parryi ssp. eastwoodiae Eastwood's larkspur

• rare native
Perennial herb

RANUNCULACEAE

Deschampsia danthonioides Annual hairgrass

native
Annual grass

Dichondra micrantha Asian ponysfoot

non-native
Perennial herb

Digitaria sanguinalis Hairy crabgrass

non-native
Annual grass

Dipsacus sativus Fuller's teasel, Indian teasel

• invasive non-native
Annual, Biennial herb

DIPSACACEAE

Dipterostemon capitatus ssp. capitatus. [Dichelostemma capitatum ssp. capitatum] Blue dicks

native
Perennial herb

THEMIDACEAE

Dipterostemon capitatus ssp. capitatus. [Dichelostemma capitatum ssp. capitatum]

Distichlis spicata Inland saltgrass, Salt grass, Saltgrass

native
Perennial grass

Dittrichia graveolens Stinkwort

• invasive non-native
Annual herb

Dudleya abramsii ssp. murina San Luis Obispo dudleya

• rare native
Perennial herb

CRASSULACEAE

Dysphania ambrosioides Mexican tea

non-native
Annual, Perennial herb

Echinochloa colona Jungle rice

non-native
Annual grass

Echinochloa crus-galli Barnyard grass, Japanese millet, Watergrass

non-native
Annual grass

Eichhornia crassipes Common water hyacinth

• invasive non-native
Perennial herb

PONTEDERIACEAE

Elatine californica California waterwort

native
Annual, Perennial herb

ELATINACEAE

Eleocharis bella Beautiful spikerush

native
Perennial grasslike herb

Eleocharis macrostachya Common spikerush, Creeping spike rush, Pale spikerush

native
Perennial grasslike herb

Eleocharis parishii Parish's spike rush, Parish's 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

Elymus xhansenii [E. glaucus x E. multisetus] Small Tree-Mallow

Epilobium brachycarpum Annual fireweed, Autumn willowweed, Panicled willow herb

native
Annual herb

Epilobium canum ssp. canum California fuchsia, Hummingbird trumpet

native
Perennial herb

Epilobium ciliatum ssp. ciliatum Fringed willowherb, Northern willow herb, Willow herb

native
Perennial herb

Epilobium densiflorum Dense boisduvalia, Dense flowered boisduvalia, Dense flowered spike primrose

native
Annual herb

Equisetum hyemale ssp. affine Giant scouring rush

native
Fern

EQUISETACEAE

Equisetum telmateia ssp. braunii Giant horse tail, Giant horsetail

native
Fern

EQUISETACEAE

Eragrostis cilianensis Stinkgrass

non-native
Annual grass

Eragrostis pectinacea var. pectinacea Tufted lovegrass

native
Annual grass

Erigeron bonariensis Flax-leaved horseweed

non-native
Annual herb

Erigeron canadensis Canada horseweed

native
Annual herb

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 brachycarpum Foothill filaree, Short fruited filaree, Shortfruit stork's bill

• invasive 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

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

• rare native
Annual, Perennial herb

Eryngium armatum Coastal eryngo, Coyote thistle, Prickly coyote thistle

native
Perennial herb

Erythranthe arenicola

native
Annual herb

PHRYMACEAE

Erythranthe grandis

native
Perennial

PHRYMACEAE

Erythranthe microphylla Small leaved monkeyflower

• rare native
Annual herb

PHRYMACEAE

Eschscholzia californica California poppy

native
Annual, Perennial herb

PAPAVERACEAE

Eucalyptus globulus Blue gum, Tasmanian bluegum

• invasive non-native
Tree

MYRTACEAE

Euphorbia maculata Spotted spurge

non-native
Annual herb

Euphorbia peplus Petty spurge

non-native
Annual herb

Euphorbia serpens Matted sandmat

non-native
Annual herb

Euphorbia spathulata Reticulate seeded spurge, Warty spurge

native
Annual herb

Festuca arundinacea Alta fescue, Reed fescue, Tall fescue

• invasive non-native
Perennial grass

Festuca bromoides Brome fescue

non-native
Annual grass

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

Fritillaria biflora var. biflora Chocolate lily

native
Perennial herb (bulb)

Galium aparine Cleavers, Common bedstraw, Goose grass

native
Annual herb

RUBIACEAE

Genista monspessulana French broom

• invasive non-native
Shrub

Geranium dissectum Cranesbill, Cut leaved geranium, Cutleaf geranium

• invasive non-native
Annual herb

Gilia achilleifolia ssp. achilleifolia California gilia

native
Annual herb

POLEMONIACEAE

Hazardia squarrosa var. squarrosa Saw toothed goldenbush, Sawtooth goldenbush

native
Shrub

Hedypnois rhagadioloides Crete weed

non-native
Annual herb

Helenium bigelovii Bigelow's sneezeweed, Sneezeweed

native
Perennial herb

Heliotropium curassavicum var. oculatum Alkali heliotrope, Seaside heliotrope

native
Perennial herb

HELIOTROPIACEAE

Helminthotheca echioides Bristly ox-tongue

• invasive non-native
Annual, Perennial 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

Heterotheca grandiflora Telegraph weed, Telegraphweed

native
Annual, Perennial herb

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

• invasive non-native
Perennial herb

Hordeum brachyantherum ssp. brachyantherum Meadow barley

native
Perennial grass

Hordeum brachyantherum ssp. brachyantherum

Hordeum marinum ssp. gussoneanum Barley, Mediterranean barley

non-native
Annual grass

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

non-native
Annual grass

Hydrocotyle verticillata Whorled marsh pennywort, Whorled marshpennywort

native
Perennial herb

ARALIACEAE

Hypochaeris glabra Smooth cat's ear

• invasive non-native
Annual herb

Juncus bufonius var. bufonius Toad rush

native
Annual grasslike herb

Juncus lescurii Dune rush

native
Perennial grasslike herb

Juncus occidentalis Rush, Slender juncus, Western rush

native
Perennial grasslike herb

Juncus phaeocephalus var. phaeocephalus Brown headed rush, Brownhead rush

native
Perennial grasslike herb

Kickxia elatine Sharp leaved fluellin, Sharp point fluellin, Sharpleaf cancerwort

non-native
Perennial herb

Koeleria macrantha June grass, Prairie junegrass

native
Perennial grass

Lactuca saligna Narrow leaved wild lettuce, Willow lettuce, Willowleaf lettuce

non-native
Annual herb

Lactuca serriola Prickly lettuce, Prickly wild lettuce

• invasive non-native
Annual herb

Laennecia coulteri Coulter's horseweed

native
Annual herb

Lagophylla ramosissima Branched lagophylla, Common hareleaf

native
Annual herb

Lamarckia aurea Goldentop grass

non-native
Annual grass

Lasthenia glaberrima Smooth goldfields

native
Annual herb

Lasthenia gracilis Needle goldfields

native
Annual herb

Lathyrus latifolius Everlasting pea, Perennial pea, Perennial sweet pea

non-native
Perennial herb

Lathyrus odoratus Common sweet pea, Garden sweet pea, Sweetpea

non-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

Lepidium nitidum Peppergrass, Shining pepper grass, Shining pepperweed

native
Annual herb

Lepidium pinnatifidum Featherleaf pepperweed, Wayside pepper grass

non-native
Annual, Perennial 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

POLEMONIACEAE

Lobularia maritima Sweet alyssum

• invasive non-native
Perennial herb

Logfia gallica Narrowleaf cottonrose

non-native
Annual herb

Lomatium caruifolium var. caruifolium Alkali desertparsley, Caraway leaved lomatium

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

Lonicera japonica Japanese honeysuckle

non-native
Vine, Shrub

CAPRIFOLIACEAE

Lotus corniculatus Bird's foot trefoil, Birdfoot deervetch, Broadleaf birdsfoot trefoil

• invasive non-native
Perennial herb

Lupinus bicolor Annual lupine, Bicolored lupine, Miniature lupine

native
Annual, Perennial herb

Lupinus microcarpus var. densiflorus Chick lupine, Dense flowered platycarpos, Whitewhorl lupine

native
Annual herb

Lupinus nanus Sky lupine

native
Annual herb

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

native
Annual herb

Lysimachia arvensis Scarlet pimpernel

non-native
Annual herb

MYRSINACEAE

Lythrum californicum California loosestrife, Common loosestrife

native
Perennial herb

LYTHRACEAE

Lythrum hyssopifolia Hyssop loosestrife

• invasive non-native
Annual, Perennial herb

LYTHRACEAE

Madia sativa Chile tarweed, Coast tarweed, Coastal tarweed

native
Annual herb

Malacothrix clevelandii Cleveland's dandelion, Cleveland's desertdandelion, Cleveland's malacothrix

native
Annual herb

Malva nicaeensis Bull mallow

non-native
Annual herb

Malva parviflora Cheeseweed mallow

non-native
Annual herb

Malva pseudolavatera

non-native
Annual, Biennial herb

Malvella leprosa Alkali mallow

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

Melilotus albus White sweetclover

• invasive non-native
Annual, Biennial herb

Melilotus indicus Annual yellow sweetclover, Sourclover

non-native
Annual herb

Mentha canadensis Wild mint

native
Perennial herb

Microseris douglasii ssp. douglasii Douglas' microseris, Douglas' silverpuffs

native
Annual herb

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

native
Annual herb

Modiola caroliniana Carolina bristle mallow, Carolina bristlemallow

non-native
Perennial herb

Nasturtium officinale Watercress

native
Perennial herb (aquatic)

Navarretia squarrosa Skunkbush, Skunkweed

native
Annual herb

POLEMONIACEAE

Oxalis pes-caprae Bermuda buttercup, Sourgrass

• invasive non-native
Perennial herb

OXALIDACEAE

Oxybasis chenopodioides Small Tree-Mallow

Oxybasis macrosperma Small Tree-Mallow

Oxybasis rubra Small Tree-Mallow

Parapholis incurva Curved sicklegrass, Sickle grass

non-native
Annual grass

Paspalum dilatatum Dallis grass, Dallisgrass

non-native
Perennial grass

Paspalum distichum Knot grass, Knotgrass

native
Perennial grass

Pellaea andromedifolia Coffee cliffbrake, Coffee fern

native
Fern

PTERIDACEAE

Perideridia pringlei Adobe yampah

• rare native
Perennial herb

Persicaria amphibia Water smartweed

native
Perennial herb (aquatic)

Persicaria lapathifolia Common knotweed

native
Annual herb

Phacelia distans Common phacelia, Distant phacelia, Wild heliotrope

native
Annual herb

HYDROPHYLLACEAE

Phacelia imbricata ssp. imbricata Imbricate Phacelia

native
Annual herb

HYDROPHYLLACEAE

Phalaris aquatica Bulbous canarygrass, Harding grass

• invasive non-native
Perennial grass

Phalaris paradoxa Hood canarygrass

non-native
Annual grass

Phyla nodiflora Common lippia, Lippia, Turkey tangle frogfruit

native
Perennial herb

VERBENACEAE

Plantago erecta California plantain, Dotseed plantain, Foothill plantain

native
Annual herb

Plantago lanceolata English plantain, Narrow leaved plantain, Ribgrass

• invasive non-native
Perennial herb

Platanus racemosa California sycamore, Western sycamore

native
Tree

PLATANACEAE

Platystemon californicus Cream cups, Creamcups

native
Annual herb

PAPAVERACEAE

Pleuropogon californicus var. californicus Annual semaphoregrass

native
Perennial grass (rhizomatous)

Pleuropogon californicus var. californicus

Poa annua Annual blue grass, Annual bluegrass

non-native
Annual grass

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

native
Perennial grass

Pogogyne douglasii Douglas' mesamint, Douglas' pogogyne

native
Annual herb

Polycarpon depressum California allseed, California manyseed, California polycarpon

native
Annual herb

Polygonum aviculare Prostrate knotweed

non-native
Annual, Perennial herb

Polypodium californicum California 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

Portulaca oleracea Common purslane, Little hogweed, Purslane

non-native
Annual herb

PORTULACACEAE

Potamogeton nodosus Long leaved pondweed, Longleaf pondweed, Pondweed

native
Perennial herb (aquatic)

POTAMOGETONACEAE

Potentilla anserina ssp. pacifica Pacific potentilla, Silverweed

native
Perennial herb

ROSACEAE

Primula clevelandi [Dodecatheon clevelandii] Small Tree-Mallow

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

Pterostegia drymarioides Fairy mist, Woodland threadstem

native
Annual herb

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

native
Tree

FAGACEAE

Quercus durata var. durata Leather oak

native
Shrub

FAGACEAE

Ranunculus californicus California buttercup

native
Perennial herb

RANUNCULACEAE

Raphanus sativus Cultivated radish, Jointed charlock, Wild radish

• invasive non-native
Annual, Biennial herb

Rhaponticum repens Russian knapweed

non-native
Perennial herb

Ricinus communis Castor bean, Castorbean

• invasive non-native
Shrub

Rorippa palustris ssp. palustris Bog yellowcress

native
Annual, Perennial herb

Rubus ursinus California blackberry, Pacific blackberry

native
Vine, Shrub

ROSACEAE

Rumex acetosella Common sheep sorrel

• invasive non-native
Perennial herb

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 kerneri Kerner's dock

non-native
Perennial herb

Rumex salicifolius var. salicifolius Willow dock, Willow leaved dock

native
Perennial herb

Salix laevigata Polished willow, Red willow

native
Tree

Salix lasiandra var. lasiandra Pacific willow

native
Tree

Salix lasiolepis Arroyo willow

native
Tree, Shrub

Salsola tragus Prickly russian thistle, Russianthistle, Tumbleweed

• invasive non-native
Annual herb

Salvia columbariae Chia sage

native
Annual herb

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

native
Perennial herb

Sanicula maritima Adobe sanicle, Adobe snakeroot

• rare native
Perennial herb

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

non-native
Annual herb, Vine

Schoenoplectus acutus var. occidentalis Tule

native
Perennial grasslike herb

Schoenoplectus californicus California bulrush

native
Perennial grasslike herb

Scirpus microcarpus Panicled bulrush, Small fruited bulrush

native
Perennial grasslike herb

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

native

SELAGINELLACEAE

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

non-native
Annual herb

Silene gallica Common catchfly, Windmill pink

non-native
Annual herb

Silybum marianum Blessed milkthistle, Milk thistle

• invasive non-native
Annual, Perennial herb

Sisyrinchium bellum Western blue eyed grass

native
Perennial herb

IRIDACEAE

Solanum douglasii Douglas' nightshade, Greenspot nightshade

native
Perennial herb

Solanum nigrum Black nightshade

non-native
Annual herb

Solanum rostratum Buffalo berry, Buffalobur nightshade

non-native
Annual 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 bicolor Sorghum

non-native
Annual grass

Spergula arvensis Corn spurry

non-native
Annual herb

Spergularia bocconi Boccone's sand spurry

non-native
Annual herb

Spergularia macrotheca var. macrotheca Sand spurrey, Sticky sand spurry, Sticky sandspurry

native
Perennial herb

Spergularia rubra Purple sand spurry, Red sandspurry, Ruby sandspurry

non-native
Annual, Perennial herb

Sporobolus indicus Smut grass, Smutgrass

non-native
Perennial grass

Stachys ajugoides Ajuga hedge nettle, Bugle hedgenettle, Hedge nettle

native
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

Stellaria media Chickweed

non-native
Annual herb

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

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

Stuckenia pectinata Sago pondweed

native
Perennial herb (aquatic)

POTAMOGETONACEAE

Symphoricarpos mollis Creeping snowberry, Trailing snowberry

native
Shrub

CAPRIFOLIACEAE

Symphyotrichum subulatum Eastern annual saltmarsh aster

native
Annual herb

Tamarix ramosissima Saltcedar, Tamarisk

• invasive non-native
Tree, Shrub

TAMARICACEAE

Taraxacum officinale Common dandelion, Dandelion, Red seeded dandelion

• invasive non-native
Perennial herb

Toxicodendron diversilobum Poison oak, Poisonoak, Western Poison Oak

native
Vine, Shrub

ANACARDIACEAE

Tragopogon porrifolius Purple salsify

non-native
Perennial herb

Tribulus terrestris Puncture vine, Puncturevine

• invasive non-native
Annual herb

ZYGOPHYLLACEAE

Trifolium albopurpureum Indian clover, Rancheria clover

native
Annual herb

Trifolium bifidum var. decipiens Notch leaf clover

native
Annual herb

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

native
Annual herb

Trifolium fragiferum Strawberry clover

non-native
Perennial herb

Trifolium fucatum Bull clover, Sour clover

native
Annual herb

Trifolium hirtum Rose clover

• invasive non-native
Annual herb

Trifolium hydrophilum Saline clover

• rare native
Annual herb

Trifolium microcephalum Hairy clover, Small headed clover

native
Annual herb

Trifolium microdon Thimble clover, Valparaiso clover

native
Annual herb

Trifolium pratense Red clover

non-native
Perennial herb

Trifolium repens White clover

non-native
Perennial 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

Typha domingensis Narrowleaf cattail, Southern cattail

native
Perennial herb

TYPHACEAE

Typha latifolia Broadleaf cattail, Common cattail, Soft flag

native
Perennial herb (aquatic)

TYPHACEAE

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

native
Perennial herb

URTICACEAE

Verbena lasiostachys var. lasiostachys Vervain, Western vervain

native
Perennial herb

VERBENACEAE

Veronica anagallis-aquatica Water speedwell

non-native
Perennial herb

Vicia benghalensis Purple vetch, Reddish tufted vetch, Vetch

non-native
Annual 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

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