| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Acanthomintha lanceolata | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | Santa Clara thornmint | |
| Agoseris retrorsa | CNPS-EB: A2 | spear-leaved agoseris | |
| Agrostis hallii | CNPS-EB: A2 | Hall's bent grass | |
| Allium amplectens | CNPS-EB: A2 | narrow-leaved onion | |
| Allium falcifolium | CNPS-EB: A2 | sickle-leaved onion | |
| Allium sharsmithiae | CNPS-EB: *A2 State CNPS: 1B.3 Global Rank: G2 CNDDB Rank: S2 | Sharsmith's onion | |
| Allophyllum gilioides subsp. gilioides | CNPS-EB: A2 | straggling gilia | |
| Alnus rubra | (A. rhombifolia is more common | CNPS-EB: A2 | red alder |
| Ammannia coccinea | CNPS-EB: A2 | long-leaved ammannia | |
| Amsinckia lunaris | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | bent-flowered fiddleneck | |
| Androsace elongata subsp. acuta | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5?T3T4 CNDDB Rank: S3S4 | California androsace | |
| Apocynum androsaemifolium | CNPS-EB: A2 | bitter dogbane, dogbane | |
| Aquilegia eximia | (A. formosa is more common) | CNPS-EB: A2 | Van Houtte's columbine |
| Arctostaphylos auriculata | CNPS-EB: *A2 State CNPS: 1B.3 Global Rank: G2 CNDDB Rank: S2 | Mount Diablo manzanita | |
| Arctostaphylos glandulosa subsp. glandulosa | CNPS-EB: A2 | Eastwood manzanita | |
| Arctostaphylos manzanita subsp. laevigata | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | Contra Costa manzanita | |
| Arctostaphylos manzanita subsp. manzanita | CNPS-EB: A2 | common manzanita | |
| Arctostaphylos pallida | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 FESA Status: FT CESA Status: CE | pallid manzanita | |
| Artemisia dracunculus | CNPS-EB: A2 | tarragon | |
| Arthrocnemum subterminale | CNPS-EB: A2 | Parish's glasswort | |
| Aspidotis californica | CNPS-EB: A2 | California lace fern | |
| Astragalus tener var. tener | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T1 CNDDB Rank: S1 | alkali milkvetch | |
| Atriplex coronata var. coronata | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4T3 CNDDB Rank: S3 | crownscale | |
| Atriplex depressa | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | brittlescale | |
| Atriplex minuscula | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G2 CNDDB Rank: S2 | LESSER SALTSCALE | |
| Bidens laevis | CNPS-EB: A2 | bur-marigold | |
| Blepharizonia plumosa | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G1G2 CNDDB Rank: S1S2 | big tarplant | |
| Calamagrostis rubescens | CNPS-EB: A2 | pine reed grass, pine grass | |
| Calandrinia breweri | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | Brewer's calandrinia | |
| Calochortus pulchellus | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Mount Diablo fairy-lantern | |
| Calochortus splendens | CNPS-EB: A2 | splendid mariposa-lily | |
| Calochortus umbellatus | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3? CNDDB Rank: S3? | Oakland star-tulip | |
| Calycadenia multiglandulosa | CNPS-EB: A2 | sticky calycadenia | |
| Calystegia malacophylla subsp. pedicellata | CNPS-EB: A2 | woolly morning-glory | |
| Camissoniopsis hirtella | CNPS-EB: A2 | small primrose | |
| Campanula exigua | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | chaparral harebell | |
| Carex brevicaulis | CNPS-EB: A2 | short-stemmed sedge | |
| Carex leptopoda | (formerly Carex deweyana subsp leptopoda | CNPS-EB: A2 | slender-footed sedge, short-scaled sedge |
| Castilleja ambigua subsp. ambigua | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5T4 CNDDB Rank: S3S4 | Johnny-nip | |
| Castilleja applegatei subsp. martinii | CNPS-EB: A2 | wavy-leaved indian paintbrush | |
| Caulanthus flavescens | CNPS-EB: A2 | yellow-flowered thelypodium | |
| Ceanothus leucodermis | CNPS-EB: A2 | chaparral whitethorn | |
| Centromadia parryi subsp. congdonii | (formerly Hemizonia p. ssp. c. | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G3T2 CNDDB Rank: S2 | Congdon's tarplant |
| Cephalanthus occidentalis | CNPS-EB: A2 | button bush | |
| Chloropyron molle subsp. molle | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T1 CNDDB Rank: S1 FESA Status: FE CESA Status: CR | soft salty bird's-beak, soft bird's-beak | |
| Chrysolepis chrysophylla var. minor | CNPS-EB: A2 | golden chinquapin | |
| Cicendia quadrangularis | CNPS-EB: A2 | timwort | |
| Cicuta douglasii | CNPS-EB: A2 | water-hemlock | |
| Cirsium occidentale var. californicum | (var. venustum is more common) | CNPS-EB: A2 | California thistle |
| Cirsium quercetorum | CNPS-EB: A2 | brownie thistle | |
| Clarkia biloba subsp. biloba | CNPS-EB: A2 | lobed godetia | |
| Clarkia concinna subsp. automixa | (ssp. concinna is more common) | CNPS-EB: *A2 State CNPS: 4.3 Global Rank: G5?T3 CNDDB Rank: S3 | Santa Clara red ribbons |
| Clarkia modesta | CNPS-EB: A2 | modest clarkia | |
| Clarkia purpurea subsp. purpurea | (ssp. quadrivulnera is more co | CNPS-EB: A2 | purple clarkia |
| Collinsia tinctoria | CNPS-EB: A2 | iodine collinsia | |
| Convolvulus simulans | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | small-flowered morning-glory | |
| Corallorhiza maculata var. maculata | (forma immaculata is more comm | CNPS-EB: A2 | spotted coralroot |
| Cordylanthus rigidus subsp. rigidus | CNPS-EB: A2 | stiffly-branched bird's-beak | |
| Croton californicus | CNPS-EB: A2 | California croton | |
| Cryptantha clevelandii var. florosa | CNPS-EB: A2 | Cleveland's cryptantha | |
| Cryptantha corollata | formerly C. decipiens. Also includes previous records for C. rattanii | CNPS-EB: A2 | COAST RANGE CRYPTANTHA |
| Cryptantha micromeres | CNPS-EB: A2 | minute-flowered cryptantha | |
| Cryptantha microstachys | CNPS-EB: A2 | Tejon cryptantha | |
| Cuscuta campestris | CNPS-EB: A2 | field dodder | |
| Cyperus niger | CNPS-EB: A2 | black sedge | |
| Deinandra corymbosa | (formerly Hemizonia corymbosa) | CNPS-EB: A2 | coast tarweed |
| Deinandra kelloggii | (formerly Hemizonia k.) | CNPS-EB: A2 | Kellogg's tarweed |
| Delphinium californicum subsp. interius | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3T3 CNDDB Rank: S3 | Hospital Canyon larkspur | |
| Delphinium hansenii subsp. hansenii | CNPS-EB: A2 | Hansen's larkspur | |
| Delphinium parryi subsp. parryi | CNPS-EB: A2 | Parry's larkspur | |
| Dendromecon rigida | CNPS-EB: A2 | bush poppy | |
| Dicentra formosa | CNPS-EB: A2 | Pacific bleeding heart, bleeding heart | |
| Diplacus douglasii | (formerly Mimulus d.) | CNPS-EB: A2 | Douglas monkeyflower |
| Diplacus rattanii | (formerly Mimulus rattanii) | CNPS-EB: A2 | Rattan monkeyflower |
| Dirca occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | western leatherwood | |
| Dudleya farinosa | CNPS-EB: A2 | bluff lettuce, powdery dudleya | |
| Echinodorus berteroi | CNPS-EB: A2 | burhead | |
| Enemion occidentale | (formerly Isopyrum o.) | CNPS-EB: A2 | western rue-anemone |
| Enemion stipitatum | (formerly Isopyrum s.) | CNPS-EB: A2 | Siskiyou rue-anemone |
| Epilobium torreyi | CNPS-EB: A2 | narrow-leaved boisduvalia | |
| Equisetum laevigatum | CNPS-EB: A2 | smooth scouring rush | |
| Eragrostis hypnoides | CNPS-EB: A2 | ||
| Eriastrum abramsii | CNPS-EB: A2 | Abram's eriastrum | |
| Ericameria nauseosa var. mohavensis | CNPS-EB: A2 | Mojave rabbitbrush, rubber rabbitbrush | |
| Eriogonum covilleanum | CNPS-EB: A2 | Coville's wild buckwheat, Coville's eriogonum | |
| Eriogonum fasciculatum var. polifolium | CNPS-EB: A2 | Mojave desert California buckwheat, California buckwheat | |
| Eriogonum luteolum var. caninum | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | Tiburon buckwheat | |
| Eriogonum luteolum var. luteolum | CNPS-EB: A2 | golden-carpet wild buckwheat, golden carpet | |
| Eriogonum roseum | CNPS-EB: A2 | wand wild buckwheat, virgate buckwheat | |
| Eriogonum umbellatum var. bahiiforme | Previously mis-recorded as var. smallianum which does not occur in the East Bay | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5T3 CNDDB Rank: S3 | Small's sulphur flower, bay buckwheat |
| Eriophyllum jepsonii | CNPS-EB: *A2 State CNPS: 4.3 Global Rank: G3 CNDDB Rank: S3 | Jepson's woolly sunflower | |
| Eriophyllum staechadifolium | CNPS-EB: A2 | seaside woolly sunflower, lizard-tail | |
| Eryngium aristulatum var. aristulatum | CNPS-EB: A2 | ||
| Eryngium castrense | CNPS-EB: A2 | great valley coyote-thistle, Vasey's coyote-thistle | |
| Eryngium jepsonii | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | ||
| Eryngium spinosepalum | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | ||
| Extriplex joaquinana | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | San Joaquin spearscale, San Joaquin saltbush | |
| Festuca octoflora | CNPS-EB: A2 | sixweeks grass, slender fescue | |
| Fritillaria agrestis | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | stinkbells | |
| Fritillaria liliacea | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | fragrant fritillary | |
| Galium andrewsii subsp. gatense | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5T3 CNDDB Rank: S3 | phlox-leaf serpentine bedstraw, serpentine bedstraw | |
| Garrya flavescens | CNPS-EB: A2 | silk tassel bush | |
| Githopsis diffusa subsp. robusta | CNPS-EB: A2 | southern bluecup | |
| Helenium bigelovii | (H. puberulum is more common) | CNPS-EB: A2 | Bigelow's sneezeweed |
| Helianthella californica var. californica | CNPS-EB: A2 | California helianthella | |
| Helianthella castanea | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Diablo helianthella | |
| Hesperevax caulescens | (H. sparsiflora is more common | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | hogwallow starfish |
| Hesperolinon breweri | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Brewer's western flax | |
| Hesperolinon clevelandii | CNPS-EB: A2 | Cleveland's dwarf flax | |
| Hesperolinon micranthum | CNPS-EB: A2 | small-flowered dwarf flax | |
| Hibiscus lasiocarpos var. occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T3 CNDDB Rank: S3 | rose-mallow | |
| Holozonia filipes | CNPS-EB: A2 | whitecrown, holozonia | |
| Hordeum jubatum subsp. jubatum | CNPS-EB: A2 | foxtail barley, squirreltail barley | |
| Horkelia californica var. elata | CNPS-EB: A2 | tall horkelia | |
| Hosackia crassifolia var. crassifolia | CNPS-EB: A2 | broad-leaved lotus | |
| Hydrocotyle ranunculoides | CNPS-EB: A2 | floating marsh pennywort | |
| Keckiella breviflora var. breviflora | CNPS-EB: A2 | gaping penstemon | |
| Laennecia coulteri | (formerly Conyza c.) | CNPS-EB: A2 | Coulter's horseweed, Coulter's conyza |
| Lastarriaea coriacea | CNPS-EB: A2 | leather-spineflower, lastarriaea | |
| Lasthenia conjugens | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 FESA Status: FE | Contra Costa goldfields | |
| Lasthenia glabrata subsp. glabrata | CNPS-EB: A2 | yellow-ray goldfields | |
| Lasthenia microglossa | CNPS-EB: A2 | small-ray goldfields | |
| Lathyrus jepsonii var. jepsonii | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | delta tule pea, Delta tule pea | |
| Layia chrysanthemoides | CNPS-EB: A2 | smooth layia | |
| Layia gaillardioides | CNPS-EB: A2 | woodland layia | |
| Lepidium oxycarpum | CNPS-EB: A2 | sharp-podded pepper-grass | |
| Leptochloa fusca subsp. fascicularis | CNPS-EB: A2 | bearded sprangletop | |
| Leptosiphon ambiguus | (formerly Linanthus a.) | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | serpentine leptosiphon, serpentine linanthus |
| Leptosiphon aureus | (formerly L.acicularis, Linanthus acicularis) | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4? CNDDB Rank: S4? | bristly leptosiphon, bristly linanthus |
| Leptosiphon parviflorus | (formerly Linanthus p.) | CNPS-EB: A2 | small-flowered linanthus, small-flowered leptosiphon |
| Lessingia nemaclada | CNPS-EB: A2 | slender-stemmed lessignia | |
| Lessingia pectinata var. tenuipes | CNPS-EB: A2 | valley lessingia | |
| Lessingia tenuis | CNPS-EB: *A2 State CNPS: 4.3 Global Rank: G4 CNDDB Rank: S4 | spring lessingia | |
| Lewisia rediviva var. rediviva | CNPS-EB: A2 | bitterroot | |
| Ligusticum apiifolium | CNPS-EB: A2 | Pacific lovage | |
| Lilaeopsis masonii | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G2 CNDDB Rank: S2 CESA Status: CR | Mason's lilaeopsis | |
| Lupinus arboreus | CNPS-EB: A2 | yellow bush lupine | |
| Lycopus americanus | CNPS-EB: A2 | cutleaf bugleweed | |
| Malacothamnus hallii | (M. fasciculatus in Jepson Man | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Hall's bush-mallow |
| Malacothrix clevelandii | CNPS-EB: A2 | Cleveland's malacothrix | |
| Meconella oregana | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G2 CNDDB Rank: S2 | Oregon meconella | |
| Mentzelia dispersa | CNPS-EB: A2 | Nada stick-leaf | |
| Mentzelia micrantha | CNPS-EB: A2 | small-flowered stick-leaf | |
| Micropus californicus var. subvestitus | (var. californicus is more common) | CNPS-EB: A2 | slender cottonweed |
| Microseris douglasii subsp. tenella | (subsp douglasii is more common) | CNPS-EB: A2 | silver puffs |
| Microseris sylvatica | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | sylvan microseris | |
| Moehringia macrophylla | CNPS-EB: A2 | large-leaved sandwort, big-leaf sandwort | |
| Monardella douglasii | CNPS-EB: A2 | fenestra monardella, Fenestra monardella | |
| Monolopia gracilens | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | woodland woollythreads, woodland monolopia | |
| Myosurus sessilis | CNPS-EB: A2 | sessile mouse-tail | |
| Navarretia atractyloides | CNPS-EB: A2 | holly-leaved navarretia | |
| Navarretia cotulifolia | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | cotula navarretia | |
| Navarretia gowenii | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 | Lime Ridge navarretia | |
| Navarretia intertexta | CNPS-EB: A2 | needle-leaved navarretia | |
| Navarretia viscidula | CNPS-EB: A2 | sticky navarretia | |
| Nuttallanthus texanus | CNPS-EB: A2 | blue toadflax | |
| Oenothera deltoides subsp. howellii | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G5T1 CNDDB Rank: S1 FESA Status: FE CESA Status: CE | Antioch Dunes evening-primrose | |
| Panicum capillare | CNPS-EB: A2 | witch grass | |
| Pectocarya penicillata | CNPS-EB: A2 | northern pectocarya, winged pectocarya | |
| Pediomelum californicum | CNPS-EB: A2 | indian breadroot | |
| Penstemon heterophyllus var. purdyi | CNPS-EB: A2 | foothill penstemon | |
| Perideridia oregana | CNPS-EB: A2 | yampah | |
| Persicaria hydropiperoides | (formerly Polygonum h.) | CNPS-EB: A2 | false waterpepper, water-pepper |
| Phacelia malvifolia var. malvifolia | CNPS-EB: A2 | stinging phacelia | |
| Phacelia phacelioides | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Mount Diablo phacelia | |
| Phacelia ramosissima | CNPS-EB: A2 | branching phacelia | |
| Piperia michaelii | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | Michael's rein-orchid | |
| Plagiobothrys humistratus | CNPS-EB: A2 | low popcornflower, dwarf allocarya | |
| Plagiobothrys undulatus | CNPS-EB: A2 | wavy-stemmed popcornflower, coast allocarya | |
| Plantago subnuda | CNPS-EB: A2 | Mexican plantain | |
| Poa howellii | CNPS-EB: A2 | Howell's bluegrass | |
| Pogogyne zizyphoroides | CNPS-EB: A2 | Sacramento beardstyle | |
| Potentilla anserina subsp. pacifica | CNPS-EB: A2 | Pacific silverweed | |
| Psilocarphus oregonus | CNPS-EB: A2 | Oregon woollyheads, Oregon woolly-marbles | |
| Puccinellia simplex | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | little alkali grass | |
| Quercus palmeri | CNPS-EB: A2 | Palmer's oak | |
| Ranunculus lobbii | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S3 | Lobb's aquatic buttercup | |
| Rhinotropis californica | (formerly Polygala californica) | CNPS-EB: A2 | California milkwort |
| Ribes aureum var. gracillimum | CNPS-EB: A2 | golden currant | |
| Ribes quercetorum | CNPS-EB: A2 | oakwoods gooseberry, oak gooseberry | |
| Rumex crassus | (formerly R. salicifolius var. crassus | CNPS-EB: A2 | willow dock |
| Rumex fueginus | CNPS-EB: A2 | golden dock | |
| Rumex occidentalis | CNPS-EB: A2 | western dock | |
| Salix scouleriana | CNPS-EB: A2 | Scouler's willow | |
| Sanicula laciniata | CNPS-EB: A2 | coast sanicle | |
| Sanicula saxatilis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 CESA Status: CR | rock sanicle | |
| Scutellaria siphocampyloides | CNPS-EB: A2 | gray-leaved skullcap | |
| Sedum radiatum subsp. radiatum | (formerly S. radiatum) | CNPS-EB: A2 | coast range stonecrop, star-fruited stonecrop |
| Senecio flaccidus var. douglasii | CNPS-EB: A2 | Douglas' threadleaf ragwort, shrubby butterweed | |
| Senecio hydrophilus | CNPS-EB: A2 | water ragwort, alkali-marsh ragwort, alkali-marsh butterweed | |
| Sidalcea diploscypha | CNPS-EB: A2 | fringed checkerbloom, fringed sidalcea | |
| Spergularia macrotheca var. longistyla | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | large-flowered sand spurry | |
| Spergularia macrotheca var. macrotheca | CNPS-EB: A2 | large-flowered sand spurry | |
| Stachys ajugoides | (var. rigida is more common) | CNPS-EB: A2 | bugle hedge nettle |
| Stipa lemmonii var. lemmonii | (formerly Achnatherum lemmonii) | CNPS-EB: A2 | Lemmon needlegrass |
| Streptanthus albidus subsp. peramoenus | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T2 CNDDB Rank: S2 | most beautiful jewel-flower | |
| Streptanthus hispidus | CNPS-EB: *A2 State CNPS: 1B.3 Global Rank: G2 CNDDB Rank: S2 | Mount Diablo jewelflower | |
| Symphyotrichum lanceolatum var. hesperium | (formerly Aster lanceolatus ss | CNPS-EB: A2 | marsh aster |
| Symphyotrichum lentum | (formerly Aster lentus) | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Suisun marsh aster |
| Trifolium barbigerum | CNPS-EB: A2 | bearded clover | |
| Trifolium grayi | CNPS-EB: A2 | Gray's clover | |
| Trifolium hydrophilum | (vars. amplectens and truncatu | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | saline clover |
| Trillium ovatum subsp. ovatum | CNPS-EB: A2 | white trillium | |
| Triodanis biflora | CNPS-EB: A2 | Venus' looking-glass | |
| Trisetum canescens | CNPS-EB: A2 | tall trisetum | |
| Viburnum ellipticum | CNPS-EB: *A2 State CNPS: 2B.3 Global Rank: G4G5 CNDDB Rank: S3 | oval-leaved viburnum | |
| Vicia hassei | CNPS-EB: A2 | slender vetch | |
| Viola douglasii | CNPS-EB: A2 | Douglas' violet, golden violet | |
| Viola glabella | CNPS-EB: A2 | stream violet, smooth yellow violet | |
| Viola sempervirens | CNPS-EB: A2 | evergreen violet, redwood violet | |
| Viola sheltonii | CNPS-EB: A2 | Shelton's violet, fan violet |