Checklist of Vascular Plant Species Occurring Within the BCCER This checklist is under continual revision. Names from the International Plant Names Index. Corrections or additions to: [email protected] A "+" indicates non-native species SCIENTIFIC NAME (IPNI) COMMON NAME growth form Abies concolor White fir t Acer macrophyllum Big-leaved maple t Achyrachaena mollis Blow wives h Acmispon americanus var. americanus Spanish lotus h Acmispon brachycarpus Foothill lotus h Acmispon parviflorus Small-flowered lotus h Acmispon wrangelianus Wrangel lotus h Adiantum capillus-veneris Southern maidenhair f Adiantum jordanii California maidenhair f Aegilops triuncialis + Barbed goatgrass g Aesculus californica California buckeye s Agoseris heterophylla Annual agoseris h Agoseris retrorsa Spear-leafed agoseris h Agrostis exarata Spiked bentgrass g Aira caryophyllea + Silver European hairgrass g Alisma triviale Water-plantain h Allium amplectens Clasping onion h Allium cratericola Volcanic onion h Allium membranaceum Papery onion h Allium peninsulare var. peninsulare Mexican onion h Allium sanbornii var sanbornii Sanborn's onion h Alnus rhombifolia White alder t Alopecurus pratensis + Meadow foxtail g Amsinckia intermedia Common fiddleneck h Amsinckia menziesii Menzies' fiddleneck h Andropogon glomeratus var. scabriglumis Southwestern bushy bluestem g Angelica californica California angelica h Anthemis cotula + Mayweed h Anthoxanthum odoratum + Large sweet vernalgrass g Anthriscus caucalis + Bur-chervil h Antirrhinum cornutum Spurred snapdragon h Antirrhinum vexillocalyculatum ssp. intermedium Wiry snapdragon h Aphanes occidentalis Western lady's mantle h Apocynum cannabinum Indian-hemp h Aquilegia formosa Crimson columbine h Arbutus menziesii Pacific madrone t Arceuthobium campylopodum Gray pine dwarf-mistletoe s Arctostaphylos manzanita ssp. manzanita Common manzanita s Arctostaphylos viscida ssp. viscida White-leaved manzanita s Aristolochia californica California pipevine s Arrhenatherum elatius + Tall oatgrass g Artemisia douglasiana Douglas' mugwort h Asarum hartwegii Hartweg's wild ginger h Asclepias cordifolia Purple milkweed h Asclepias eriocarpa Indian milkweed h Asclepias fascicularis Narrow-leaved milkweed h Asclepias speciosa Showy milkweed h Asparagus officinalis + Garden asparagus h Aspidotis californica California lace fern f Astragalus gambelianus Gambel's milk-vetch h Astragalus pauperculus Depauperate milk-vetch h Athysanus pusillus Petty athysanus h Avena barbata + Slender wild oats g Avena fatua + Wild oats g Azolla filiculoides Large Mosquito-fern f Baccharis pilularis Coyote-brush s Baccharis salicifolia Mule's-fat s Balsamorhiza deltoidea Deltoid balsamroot h Blennosperma nanum var. nanum Yellow carpet h Boechera breweri subsp. shastaensis Shasta rockcress h Brachypodium distachyon + False brome g Brassica nigra + Black mustard h Brickellia californica California brickellbush s Briza maxima + Greater quaking-grass g Briza minor + Small quaking-grass g Brodiaea californica Claifornia brodiaea h Brodiaea elegans Elegant brodiaea h Brodiaea minor Blue stars h Brodiaea sierrae Sierra brodiaea h Bromus carinatus var. carinatus California brome g Bromus diandrus + Ripgut brome g Bromus hordeaceus + Soft chess g Bromus laevipes Woodland brome g Bromus madritensis ssp. madritensis + Foxtail brome g Bromus madritensis ssp. rubens + Red brome g Bromus sterilis + Poverty brome g Bromus tectorum Cheatgrass g Calandrinia menziesii Redmaids h Callitriche heterophylla var. bolanderi Variable-leaved water-starwort h Callitriche marginata Winged water-starwort h Calocedrus decurrens Incense cedar t Calochortus luteus Yellow mariposa lily h Calochortus monophyllus Yellow star-tulip h Calochortus superbus Superb mariposa lily h Calycadenia fremontii Fremont's calycadenia h Calycadenia oppositifolia (CNPS LIST 1B) Butte County calycadenia h Calycadenia truncata Rosinweed h Calycanthus occidentalis Western Spicebush s Calystegia occidentalis ssp. occidentalis Western morning-glory h Capsella bursa-pastoris + Shepherd's purse h Cardamine californica Milkmaids h Cardamine oligosperma Western bitter cress h Carduus pycnocephalus + Italian plumeless thistle h Carex amplifolia Ample-leaved sedge h Carex barbarae Santa Barbara sedge h Carex densa Dense sedge h Carex leptopoda Short-scaled sedge h Carex multicaulis Many-stemmed sedge h Carex nudata Torrent sedge h Castilleja affinis ssp. affinis Lay-and-Collie's indian-paintbrushh Castilleja applegatei ssp. pinetorum Wavy-leaved indian-paintbrush h Castilleja attenuata Valley tassels h Castilleja exserta Purple owl-clover h Castilleja lacera Cut-leaved owl-clover h Ceanothus cuneatus var. cuneatus Buckbrush s Ceanothus integerrimus Deerbrush s Centaurea melitensis + Tocalote h Centaurea solstitialis + Yellow star-thistle h Centaurium tenuiflorum June centaury h Centromadia fitchii Fitch's tarweed h Cephalanthera austiniae Phantom orchid h Cephalanthus occidentalis California buttonbush s Cerastium glomeratum + Sticky mouse-eared chickweed h Cercis occidentalis Western redbud s Cercocarpus betuloides Birch-leaved mountain-mahogany s Chlorogalum angustifolium Narrow-leaved soaproot h Chlorogalum pomeridianum Wavy-leaved soaproot h Chorizanthe polygonoides var. polygonoides Knotweed spineflower h Chorizanthe stellulata Starlet spineflower h Cichorium intybus + Chicory h Cirsium occidentale var. venustum Venus thistle h Cirsium vulgare + Bull thistle h Clarkia gracilis ssp. albicaulis (CNPS 1B) White-stemmed clarkia h Clarkia purpurea ssp. quadrivulnera Purple clarkia h Clarkia rhomboidea Diamond clarkia h Clarkia unguiculata Elegant clarkia h Claytonia parviflora ssp. parviflora Small-flowered miner's lettuce h Claytonia perfoliata Miner's lettuce h Clematis lasiantha Chaparral clematis s Clematis ligusticifolia Western virgin's bower s Collinsia heterophylla Chinese houses h Collinsia sparsiflora var. bruceae Foothill collinsia h Collinsia sparsiflora var. sparsiflora Few-flowered collinsia h Collinsia tinctoria Sticky Chinese-houses h Collomia heterophylla Variable-leaved collomia h Comandra umbellata Bastard toadflax h Convolvulus arvensis + Bindweed h Cordylanthus pilosus ssp. hansenii Hansen's bird's-beak h Cornus glabrata Brown dogwood s Cornus nuttallii Mountain dogwood s Cornus sessilis Black-fruited dogwood s Crassula aquatica Water pygmyweed h Crassula connata Pygmyweed h Crassula tillaea + Mossy pygmyweed h Crataegus laevigata, possible misname + English hawthorn s Croton setiger Doveweed h Crucianella angustifolia + Crosswort h Crypsis schoenoides + Swamp pricklegrass g Cryptantha flaccida Weak-stemmed cryptantha h Cuscuta occidentalis Short-flowered dodder h Cynodon dactylon + Bermuda-grass g Cynoglossum grande Pacific hound's-tongue h Cynosurus echinatus + Hedgehog dogtail g Cyperus eragrostis Tall cyperus h Cyperus niger Black cyperus h Cyperus strigosus False nutsedge h Cystopteris fragilis Brittle fern f Dactylis glomerata + Orchard grass g Damasonium californicum Fringed water-plantain h Darmera peltata Indian-rhubarb h Datura wrightii Thorn-apple h Daucus pusillus Rattlesnake-weed h Delphinium hansenii ssp. hansenii Hansen's larkspur h Delphinium nudicaule Red larkspur h Delphinium patens ssp. patens Spreading larkspur h Delphinium variegatum Royal larkspur h Deschampsia danthonioides Annual hairgrass g Deschampsia elongata Slender hairgrass g Dichelostemma capitatum Blue dicks h Dichelostemma congestum Fork-toothed ookow h Dichelostemma multiflorum Round-toothed ookow h Dichelostemma volubile Twining ookow h Distichlis spicata Saltgrass g Downingia ornatissima var. ornatissima Folded downingia h Draba verna + Spring whitlow-grass h Drymocallis glandulosa Sticky cinquefoil h Dryopteris arguta Coastal wood fern f Dudleya cymosa Canyon dudleya h Eleocharis macrostachya Pale spike-rush h Eleocharis parishii Parish's spike-rush h Elymus caput-medusae + Medusa-head g Elymus glaucus Blue wild-rye g Elymus multisetus Big squirreltail g Elymus triticoides Alkali ryegrass g Enemion occidentale Western false rue-anemone h Epilobium canum ssp. latifolium California fuchsia s Epilobium ciliatum ssp. ciliatum Fringed-willowherb h Epilobium densiflorum Dense-flowered spike-primrose h Epilobium minutum Chaparral willowherb h Epilobium torreyi Torrey's spike-primrose h Epipactis gigantea Stream orchid h Equisetum hyemale ssp. affine Common scouring-rush h Equisetum laevigatum Smooth scouring-rush h Erigeron canadensis Canadian horseweed h Erigeron divergens Spreading daisy h Erigeron inornatus var. inornatus California rayless daisy h Erigeron philadelphicus Philadelphia daisy h Eriodictyon californicum Yerba-santa s Eriogonum nudum var. pubiflorum Hairy-flowered buckwheat h Eriophyllum lanatum var. grandiflorum Woolly sunflower h Erodium botrys + Long-beaked stork's-bill h Erodium brachycarpum + Short-beaked stork's-bill h Erodium cicutarium + Red-stemmed filaree h Erysimum capitatum var. capitatum Western wallflower h Erythronium multiscapideum Fawn lily h Eschscholzia caespitosa Foothill poppy h Eschscholzia californica California poppy h Eschscholzia lobbii Frying pan poppy h Euphorbia crenulata Chinese caps h Euphorbia ocellata ssp. Ocellata Valley spurge h Euphorbia spathulata Warty spurge h Eurybia radulina Broad-leaved aster h Festuca arundinacea + Reed fescue g Festuca bromoides + Six-week's-fescue g Festuca californica California fescue g Festuca microstachys Small Fescue g Festuca myuros+ Rattail fescue g Festuca occidentalis Western Fescue g Festuca perennis + Italian ryegrass g Festuca temulenta + Darnel g Ficus carica + Edible fig t Frangula californica subsp. tomentella Hoary coffeberry s Fraxinus dipetala California ash s Fraxinus latifolia Oregon ash t Fritillaria affinis Checkered fritillary h Fritillaria recurva Scarlet fritillary h Galium aparine Cleavers h Galium bolanderi Bolsander's bedstraw h Galium divaricatum + Lamarck's Bedstraw h Galium parisiense + Wall bedstraw h Galium porrigens var. tenue Narrow-leaved climbing bedstraw h Garrya fremontii Fremont silktassel s Gastridium phleoides + Nitgrass g Geranium carolinianum Carolina geranium h Geranium dissectum + Cut-leaved geranium h Geranium molle + Dove's-foot geranium h Gilia capitata Globe gilia h Gilia tricolor Bird's-eye gilia h Githopsis diffusa ssp. robusta Robust bluecup h Githopsis pulchella ssp. campestris Large-flowered bluecup h Githopsis specularioides Common bluecup h Glycyrrhiza lepidota American licorice h Grindelia camporum Foothill gumplant h Hastingsia alba White Hastingsia h Hedypnois cretica + Hedypnois h Helianthella californica var. nevadensis Sierra Nevada Helianthella h Heliotropium europaeum + European heliotroph h Hesperevax acaulis var. acaulis Dwarf evax h Hesperevax acaulis var. ambusticola Fire-dwelling evax h Hesperocnide tenella Western nettle h Heteromeles arbutifolia Toyon s Heuchera micrantha Crevice alumroot h Hieracium albiflorum White-flowered hawkweed h Hoita macrostachya Large leather-root h Holcus lanatus + Common velvetgrass g Hordeum marinum ssp. gussoneanum + Mediterranean barley g Hordeum murinum ssp. leporinum + Hare wall barley g Hosackia oblongifolia var. oblongifolia Streambank lotus h Hydrophyllum occidentale California waterleaf h Hypericum anagalloides Tinker's penny h Hypericum mutilum + Small-flowered St. John's-wort h Hypericum perforatum + Klamath weed h Hypochaeris glabra + Smooth cat's-ear h Iris macrosiphon Long-tubed iris h Isoetes nuttallii Nuttall's quillwort f Juglans hindsii California black walnut t Juncus balticus subsp. ater Baltic rush h Juncus bufonius var. bufonius Common toadrush h Juncus ensifolius Sword-leaved rush h Juncus exiguus Short rush h Juncus oxymeris Pointed rush h Juncus patens Spreading rush h Juncus tenuis Slender rush h Keckiella breviflora var. glabrisepala Gaping keckiella s Keckiella corymbosa Redwood keckiella s Keckiella lemmonii Lemmon's keckiella s Koeleria gerardii + Bristly koeler's-grass g Lactuca serriola + Prickly lettuce h Lagophylla glandulosa Glandular hareleaf h Lamium amplexicaule + Giraffehead h Lasthenia californica California goldfields h Lathyrus sulphureus Snub pea h Lathyrus tingitanus + Tangier pea h Layia fremontii Tidy-tips h Lemna minuta Least duckweed h Lepechinia calycina California pitcher-sage s Lepidium nitidum Shining pepper-grass h Lepidium strictum Upright pepper-grass h Leptosiphon bicolor Bicolored linanthus h Leptosiphon bolanderi Bolander’s linanthus h Leptosiphon ciliatus Whiskerbrush h Leptosiphon filipes Wild baby's breath h Lessingia nemaclada Slender-stemmed lessingia h Lilium humboldtii Humboldt lily h Lilium pardalinum ssp. shastense Shasta lily h Limnanthes douglasii ssp. nivea Table Mountain meadowfoam h Linanthus dichotomus Evening-snow h Lithophragma bolanderi Bolander's woodlandstar h Lithophragma campanulatum Bell-shaped woodlandstar h Lithophragma parviflorum var. trifoliatum Three-parted woodlandstar h Lithospermum californicum California gromwell h Logfia filaginoides California filago h Logfia gallica + Narrow-leaved filago h Lomatium dasycarpum ssp. tomentosum Wooly-fruited lomatium h Lomatium dissectum var. multifidum Fern-leaved lomatium h Lomatium macrocarpum Large-fruited lomatium h Lomatium utriculatum Bladder lomatium h Lonicera interrupta Chaparral honeysuckle s Lotus corniculatus + Bird's-foot-trefoil h Lupinus albicaulis Sickle-keeled lupine h Lupinus albifrons var. albifrons Silver bush lupine s Lupinus arbustus Spurred lupine h Lupinus bicolor Bicolored lupine h Lupinus latifolius var. columbianus Broad-leaved lupine h Lupinus microcarpus var. densiflorus White-whorled lupine h Lupinus nanus Sky lupine h Lupinus pachylobus Big-podded lupine h Luzula subsessilis Sessile woodrush h Lychnis coronaria + Mullein-pink h Lysimachia arvensis + Scarlet pimpernell h Lysimachia latifolia Pacific starflower h Lythrum hyssopifolia + Hyssop loosestrife h Madia elegans Common madia h Madia exigua Thread-Stemmed Madia h Madia gracilis Slender tarweed h Madia subspicata Spiked tarweed h Malus pumila + Apple t Marah fabacea California manroot s Marah watsonii Taw manroot s Marrubium vulgare + Horehound h Matricaria discoidea + Common pineapple weed h Matricaria matricarioides + Pineapple weed h Meconella californica California meconella h Medicago arabica+ Spotted medick h Medicago polymorpha + Common bur clover h Melica californica California melic g Melica harfordii Harford's melic g Melica torreyana Torrey's melic g Melilotus albus + White sweet clover h Melissa officinalis + Bee-balm h Mentha arvensis American wild mint h Micranthes californica California saxifrage h Micranthes integrifolia Hooker's saxifrage h Micropus californicus var. californicus Slender cottonweed h Microseris acuminata Sierra foothill microseris h Microsteris gracilis Slender phlox h Mimulus aurantiacus Bush monkey-flower s Mimulus bicolor Yellow-and-white monkey flower h Mimulus cardinalis Scarlet monkey flower h Mimulus douglasii Douglas’ monkey flower h Mimulus glaucescens (CNPS List 4) Shield-bracted monkey-flower h Mimulus guttatus Seep monkey flower h Mimulus kelloggii Kellogg's monkey flower h Mimulus layneae Layne's monkey flower h Mimulus moschatus Musk monkey flower h Minuartia californica California sandwort h Minuartia douglasii Douglas’ sandwort h Monardella breweri subsp. Lanceolata Mustang-Mint h Monardella sheltonii Shelton's coyote mint h Montia fontana Water montia h Montia parvifolia Small-leaved montia h Muhlenbergia filiformis Pullup muhly g Muhlenbergia mexicana Mexican muhly g Muhlenbergia rigens Deergrass g Myosotis discolor + Yellow scorpion-grass h Narcissus pseudonarcissus + Common daffodil h Nasturtium officinale Watercress h Navarretia divaricata ssp. vividior Spreading navarretia h Navarretia filicaulis Thread-stemmed navarretia h Navarretia intertexta Needle-leaved navarretia h Navarretia leucocephala White-flowered navarretia h Navarretia pubescens Downy navarretia h Navarretia subuligera (CNPS List 4) Awl-leaved navarretia h Navarretia tagetina Marigold navarretia h Navarretia viscidula Sticky navarretia h Nemophila heterophylla Variable-leaved nemophylla h Nemophila menziesii Baby blue eyes h Nemophila pedunculata Meadow nemophila h Odontostomum hartwegii Hartweg's odontostomum h Oemleria cerasiformis Oso-berry s Olea europaea + Olive t Orobanche fasciculata Clustered broom-rape h Orobanche uniflora Naked broom-rape h Osmorhiza berteroi Mountain Sweet-cicely h Panicum acuminatum Western panicgrass g Pectocarya pusilla Little pectocarya h Pellaea andromedifolia Coffee fern f Pellaea mucronata Common bird's foot fern f Penstemon heterophyllus Foothill beardtongue h Pentagramma pallida Whiteback fern f Pentagramma triangularis Gold-backed fern f Perideridia howellii Howell's yampah h Perideridia kelloggii Kellogg's yampah h Petrorhagia dubia + Grass-pink h Phacelia egena Rock phacelia h Phacelia tanacetifolia Tansy phacelia h Phalaris aquatica + Harding-grass g Philadelphus lewisii Mock orange s Phleum pratense + Cultivated timothy g Phoradendron serotinum subsp. Tomentosum Hairy mistletoe s Physocarpus capitatus Ninebark s Pinus ponderosa Ponderosa pine t Pinus sabiniana Foothill pine (Grey pine) t Piperia transversa Cross-spurred rein orchid h Pistacia chinensis + Pistachio t Plagiobothrys austiniae Austin's popcorn-flower h Plagiobothrys canescens Valley popcorn-flower h Plagiobothrys fulvus var. campestris Fulvous popcorn-flower h Plagiobothrys nothofulvus Common popcorn-flower h Plagiobothrys tenellus Slender Popcorn-Flower h Plantago elongata Elongate plantain h Plantago erecta Erect plantain h Plantago lanceolata + English plantain h Plantago major + Common plantain h Platanus racemosa Western sycamore t Plectritis ciliosa Pink plectritis h Plectritis macrocera White plectritis h Poa annua + Annual bluegrass g Poa bulbosa + Bulbous bluegrass g Poa compressa + Canadian bluegrass g Poa howellii Howell's bluegrass g Poa secunda ssp. secunda One-sided bluegrass g Poa tenerrima Delicate bluegrass g Polygala cornuta var. cornuta Sierra Milkwort h Polygonum aviculare ssp. depressum + Smartweed h Polygonum bidwelliae (CNPS List 4) Bidwell's knotweed h Polygonum californicum California knotweed h Polypodium calirhiza California polypody f Polypogon australis + Southern beardgrass g Polypogon interruptus + Ditch beardgrass g Polypogon maritimus + Mediterranean beardgrass g Polypogon monspeliensis + Annual beardgrass g Polystichum imbricans ssp. imbricans Narrow-leaved sword fern f Populus fremontii Fremont's cottonwood t Potamogeton crispus + Wavy-leaved pondweed h Potamogeton foliosus ssp. foliosus Leafy pondweed h Poterium sanguisorba + Garden burnet h Primula clevelandii ssp. patula Lowland shootingstar h Primula hendersonii Henderson's shootingstar h Prunella vulgaris var. lanceolata Mountain selfheal h Prunus cerasifera + Cherry plum t Prunus subcordata Sierra plum s Prunus virginiana var. demissa Western choke cherry s Pseudognaphalium beneolens Fragrant cudweed h Pseudognaphalium californicum California cudweed h Pseudognaphalium luteoalbum + Weedy cudweed h Pseudotsuga menziesii Douglas fir t Psilocarphus tenellus Slender wolly-marbles h Ptelea crenulata Hoptree s Pteridium aquilinum Western bracken fern f Pterostegia drymarioides Pterostegia (Granny's hairnet) h Pyrola picta White-veined wintergreen h Pyrus communis + Common pear t Quercus berberidifolia Scrub oak s Quercus chrysolepis Canyon live oak t Quercus douglasii Blue oak t Quercus garryana var. breweri Brewer oak s Quercus kelloggii California black oak t Quercus lobata Valley oak t Quercus wislizeni var. wislizeni Interior live oak t Ranunculus aquatilis Water buttercup h Ranunculus canus Sacramento Valley buttercup h Ranunculus hebecarpus Hairy-fruited buttercup h Ranunculus muricatus + Prickle-seeded buttercup h Ranunculus occidentalis Western buttercup h Raphanus sativus + Wild radish h Rhamnus ilicifolia Holly-leaved redberry s Rhus aromatica Skunkbrush s Ribes amarum Bitter Gooseberry s Ribes nevadense Mountain Pink Currant s Ribes roezlii var. roezlii Sierra gooseberry s Romulea rosea var. australis + Rosy Sand Crocus h Rosa californica California rose s Rubus armeniacus + Himalayan blackberry s Rubus glaucifolius Creeping raspberry s Rubus laciniatus + Cut-leaved blackberry s Rubus pensilvanicus + Pennsylvania blackberry s Rubus ursinus California blackberry s Rumex acetosella + Common sheep sorrel h Rumex crispus + Curly dock h Rumex pulcher + Fiddle dock h Salix exigua Narrow-leaved willow s Salix gooddingii Goodding's black willow t Salix laevigata Red willow t Salix lasiolepis Arroyo willow s Sambucus nigra subsp. caerulea Blue elderberry s Sanicula bipinnata Poison sanicle h Sanicula bipinnatifida Purple sanicle h Sanicula crassicaulis Pacific sanicle h Sanicula tuberosa Turkey-pea h Saponaria officinalis + Bouncing-bet h Scandix pecten-veneris + Shepherd’s needle h Schoenoplectus acutus var. occidentalis Hard-stemmed tule h Scirpus microcarpus Small-fruited bulrush h Scleranthus annuus Knawel h Scribneria bolanderi Scribner's-Grass g Scrophularia californica California figwort h Scutellaria californica California skullcap h Scutellaria siphocampyloides Gray-leaved skullcap h Scutellaria tuberosa Danny's skullcap h Sedella pumila Dwarf-stonecrop h Sedum spathulifolium Broad-leaved stonecrop h Selaginella hansenii Hansen's spikemoss h Selaginella wallacei Wallace's spikemoss h Senecio aronicoides California ragwort h Senecio sylvaticus + Wood groundsel h Senecio vulgaris + Old-man-in-the-spring h Sherardia arvensis + Field-madder h Sidalcea asprella Harsh checkerbloom h Sidalcea calycosa ssp. calycosa Annual checkerbloom h Sidalcea hartwegii Hartweg's sidalcea h Sidalcea robusta (CNPS 1B) Butte County checkerbloom h Silene gallica + Windmill-pink h Silene laciniata ssp. californica Indian-pink h Silybum marianum + Milk-thistle h Sisymbrium officinale + Hedge mustard s Smilax californica Greenbriar s Solanum parishii Parish's nightshade h Solidago velutina ssp. californica California goldenrod h Soliva sessilis + Lawn burweed h Sonchus asper + Prickly sow-thistle h Sonchus oleraceus + Common sow-thistle h Sorghum halepense + Johnsongrass h Spergularia bocconi + Sandspurry h Spiranthes porrifolia Western ladies-tresses h Stachys ajugoides var. rigida Rigid hedge-nettle h Stachys stricta Sonoma hedge-nettle h Stellaria media + Common chickweed h Stellaria nitens Shiny starwort h Stipa lemmonii Lemmon's needlegrass g Stipa miliacea var. miliacea + Smilograss g Stipa pulchra Purple needlegrass g Symphoricarpos albus var. laevigatus Common snowberry s Symphyotrichum chilense California aster h Taraxacum officinale + Dandelion h Tauschia hartwegii Hartweg's tauschia h Thysanocarpus curvipes Fringepod h Tonella tenella Small-flowered tonella h Torilis arvensis + Common hedge-parsley h Torilis nodosa + Knotted hedge-parsley h Torreya californica California-nutmeg t Toxicodendron diversilobum Poison-oak s Toxicoscordion venenosum var. venenosum Death camas h Tragopogon dubius + Yellow salsify h Tribulus terrestris + Puncture vine h Trichostema lanceolatum Vinegar-weed h Trifolium albopurpureum Indian clover h Trifolium bifidum var. decipiens Deceptive clover h Trifolium ciliolatum Foothill clover h Trifolium depauperatum var. amplectens Involucrate cowbag clover h Trifolium depauperatum var. depauperatum Dwarf cowbag clover h Trifolium dubium + Little hop clover h Trifolium glomeratum + Sessile-headed clover h Trifolium hirtum + Rose clover h Trifolium microcephalum Small-headed clover h Trifolium subterraneum+ Subterranean clover h Trifolium variegatum var. variegatum White-tipped clover h Trifolium willdenovii Tomcat clover h Trifolium wormskioldii Springbank clover h Triphysaria eriantha Johnny-tuck h Triphysaria pusilla Dwarf owl-clover h Triteleia bridgesii Bridge's triteleia h Triteleia hyacinthina White hyacinth h Triteleia laxa Ithuriel's spear h Turritis glabra Tower-mustard h Typha domingensis Southern cattail h Umbellularia californica California bay s Verbascum blattaria + Moth mullein h Verbascum thapsus + Woolly mullein h Verbena hastata Halberd-leaved vervain h Verbena lasiostachys Western vervain h Veronica persica + Persian speedwell h Vicia americana American vetch h Vicia sativa + Garden vetch h Vicia villosa + Winter vetch h Viola purpurea ssp. quercetorum Oakwoods violet h Vitis californica California grape s Woodwardia fimbriata Giant Chain fern f Xanthium strumarium Cocklebur h Yabea microcarpa False hedge parsley h Zeltnera venusta Canchalagua h