| 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 heterophylla var. cryptopleura | CNPS-EB: B | ||
| Agoseris heterophylla var. heterophylla | CNPS-EB: C | ||
| Agoseris retrorsa | CNPS-EB: A2 | spear-leaved agoseris | |
| Allium amplectens | CNPS-EB: A2 | narrow-leaved onion | |
| Allium bolanderi var. bolanderi | CNPS-EB: A1 | Bolander's onion | |
| Allophyllum gilioides subsp. gilioides | CNPS-EB: A2 | straggling gilia | |
| Allophyllum gilioides subsp. violaceum | (ssp. gilioides is more common | CNPS-EB: B | straggling gilia |
| Amaranthus blitoides | CNPS-EB: C | procumbent pigweed, prostrate amaranth | |
| Amaranthus californicus | CNPS-EB: B | Californian amaranth | |
| Amelanchier utahensis | CNPS-EB: C | Utah service-berry | |
| Ancistrocarphus filagineus | CNPS-EB: C | woolly fishhooks | |
| Aphyllon purpureum | CNPS-EB: C | naked broomrape | |
| Aphyllon tuberosum | CNPS-EB: C | bulbous broom-rape | |
| Aphyllon vallicola | CNPS-EB: B | California broom-rape | |
| Apocynum cannabinum | CNPS-EB: B | dogbane, Indian-hemp | |
| Arctostaphylos crustacea subsp. crustacea | CNPS-EB: C | brittleleaf manzanita | |
| Arctostaphylos glauca | CNPS-EB: C | big-berried manzanita | |
| Boechera breweri subsp. breweri | (formerly Arabis breweri) | CNPS-EB: B | Brewer's rockcress |
| Camissonia contorta | CNPS-EB: C | contorted primrose | |
| Camissonia strigulosa | CNPS-EB: A1 | contorted primrose | |
| Camissoniopsis hirtella | CNPS-EB: B | small primrose | |
| Carex leporina | (formerly Carex ovalis) | CNPS-EB: A1 | hare sedge, oval sedge, mountain hare sedge |
| Carex serratodens | CNPS-EB: C | saw-toothed sedge, bifid sedge | |
| Chaenactis glabriuscula var. heterocarpha | CNPS-EB: A1 | inner coast range pincushion, yellow pincushion | |
| Chorizanthe polygonoides var. polygonoides | CNPS-EB: A1 | knotweed spineflower | |
| 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 concinna subsp. concinna | CNPS-EB: C | large godetia | |
| Clarkia gracilis subsp. gracilis | CNPS-EB: C | summer's darling | |
| Clarkia rhomboidea | CNPS-EB: A1 | ||
| Claytonia exigua subsp. exigua | CNPS-EB: C | common montia | |
| Claytonia gypsophiloides | CNPS-EB: B | coast range montia | |
| Clematis ligusticifolia | CNPS-EB: C | western virgin's bower, virgin's bower | |
| Collinsia parviflora | CNPS-EB: B | blue-eyed Mary | |
| Collinsia sparsiflora var. sparsiflora | CNPS-EB: C | few-flowered blue-eyed Mary | |
| Cordylanthus rigidus subsp. rigidus | CNPS-EB: A1 | stiffly-branched bird's-beak | |
| Crocidium multicaule | CNPS-EB: A1 | spring gold | |
| Cuscuta subinclusa | CNPS-EB: C | canyon dodder | |
| Datisca glomerata | CNPS-EB: C | durango root | |
| Delphinium californicum subsp. interius | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3T3 CNDDB Rank: S3 | Hospital Canyon larkspur | |
| Delphinium nudicaule | CNPS-EB: C | red larkspur, orange larkspur | |
| Delphinium variegatum subsp. variegatum | CNPS-EB: C | royal larkspur | |
| Deschampsia cespitosa subsp. cespitosa | CNPS-EB: C | tufted hairgrass | |
| Deschampsia danthonioides | CNPS-EB: C | annual hair grass | |
| Diplacus bolanderi | (formerly Mimulus b.) | CNPS-EB: A1 | Bolander's monkeyflower |
| Diplacus douglasii | (formerly Mimulus d.) | CNPS-EB: A2 | Douglas monkeyflower |
| Diplacus rattanii | (formerly Mimulus rattanii) | CNPS-EB: A2 | Rattan monkeyflower |
| Dudleya cymosa subsp. paniculata | CNPS-EB: B | spreading dudleya | |
| Elatine californica | CNPS-EB: A2 | waterwort | |
| Elymus elymoides var. elymoides | CNPS-EB: B | squirreltail | |
| Elymus multisetus | CNPS-EB: C | big squirreltail | |
| Enemion occidentale | (formerly Isopyrum o.) | CNPS-EB: A2 | western rue-anemone |
| Enemion stipitatum | (formerly Isopyrum s.) | CNPS-EB: A2 | Siskiyou rue-anemone |
| Epilobium campestre | CNPS-EB: B | smooth boisduvalia | |
| Epilobium torreyi | CNPS-EB: A2 | narrow-leaved boisduvalia | |
| Ericameria arborescens | CNPS-EB: B | golden-fleece | |
| Ericameria nauseosa var. mohavensis | CNPS-EB: A2 | Mojave rabbitbrush, rubber rabbitbrush | |
| Eriogonum gracile var. gracile | CNPS-EB: C | slender woolly wild buckwheat, slender 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 |
| Eriogonum wrightii var. trachygonum | CNPS-EB: C | rough-node bastard-sage, Wright's eriogonum | |
| Eriophyllum jepsonii | CNPS-EB: *A2 State CNPS: 4.3 Global Rank: G3 CNDDB Rank: S3 | Jepson's woolly sunflower | |
| Eryngium castrense | CNPS-EB: A2 | great valley coyote-thistle, Vasey's coyote-thistle | |
| Erythranthe nasuta | CNPS-EB: B | shy monkeyflower | |
| Festuca californica | CNPS-EB: C | California fescue | |
| Festuca idahoensis | CNPS-EB: C | Idaho fescue, blue bunchgrass | |
| Frangula californica subsp. tomentella | (formerly Rhamnus t.) | CNPS-EB: B | hoary coffeeberry |
| Galium andrewsii subsp. gatense | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5T3 CNDDB Rank: S3 | phlox-leaf serpentine bedstraw, serpentine bedstraw | |
| Galium triflorum | CNPS-EB: C | sweet-scented bedstraw | |
| Gilia capitata subsp. staminea | CNPS-EB: C | blue field gilia | |
| Gilia tricolor subsp. diffusa | CNPS-EB: C | birds-eye gilia | |
| Githopsis diffusa subsp. robusta | CNPS-EB: A2 | southern bluecup | |
| Githopsis specularioides | CNPS-EB: B | common bluecup | |
| Gruvelia pusilla | (formerly Pectocarya pusilla) | CNPS-EB: B | little pectocarya |
| Helianthella californica var. californica | CNPS-EB: A2 | California helianthella | |
| Hesperolinon californicum | CNPS-EB: C | California dwarf flax | |
| Heterocodon rariflorum | CNPS-EB: A1 | heterocodon | |
| Horkelia californica var. elata | CNPS-EB: A2 | tall horkelia | |
| Hydrophyllum occidentale | CNPS-EB: A1 | western waterleaf | |
| Idahoa scapigera | CNPS-EB: A1 | flat-pod | |
| Juniperus californica | CNPS-EB: C | California juniper | |
| Keckiella corymbosa | CNPS-EB: C | redwood penstemon | |
| Koeleria macrantha | CNPS-EB: C | june grass | |
| Layia gaillardioides | CNPS-EB: A2 | woodland layia | |
| Legenere limosa | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G2 CNDDB Rank: S2 | legenere | |
| Leptosiphon ambiguus | (formerly Linanthus a.) | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | serpentine leptosiphon, serpentine linanthus |
| Leptosiphon androsaceus | (formerly Linanthus a.) | CNPS-EB: C | common linanthus, common leptosiphon |
| Leptosiphon bolanderi | (formerly Linanthus b.) | CNPS-EB: A1 | Bolander's linanthus, Bolander's leptosiphon |
| Leptosiphon parviflorus | (formerly Linanthus p.) | CNPS-EB: B | small-flowered linanthus, small-flowered leptosiphon |
| Leptosyne hamiltonii | (formerly Coreopsis h.) | CNPS-EB: *A1 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Mount Hamilton coreopsis |
| Lessingia nemaclada | CNPS-EB: A2 | slender-stemmed lessignia | |
| Lewisia rediviva var. rediviva | CNPS-EB: A2 | bitterroot | |
| Limosella acaulis | CNPS-EB: A1 | southern mudwort | |
| Linanthus dichotomus subsp. dichotomus | EVENING SNOW | ||
| Linanthus dichotomus subsp. meridianus | CNPS-EB: A1 | ||
| Lithophragma parviflorum var. parviflorum | CNPS-EB: B | prairie star | |
| Madia exigua | CNPS-EB: C | ||
| Melica bulbosa | CNPS-EB: A1 | onion grass | |
| Melica californica | CNPS-EB: C | California melic | |
| Mentzelia lindleyi | CNPS-EB: B | Lindley's blazing star | |
| Micropus californicus var. subvestitus | (var. californicus is more common) | CNPS-EB: A2 | slender cottonweed |
| Microseris elegans | CNPS-EB: A1 | elegant microseris | |
| Moehringia macrophylla | CNPS-EB: A2 | large-leaved sandwort, big-leaf sandwort | |
| Monardella douglasii | CNPS-EB: A2 | fenestra monardella, Fenestra monardella | |
| Montia fontana | CNPS-EB: C | water chickweed, blinks, water chickweed | |
| Myosurus minimus subsp. minimus | CNPS-EB: C | common mouse-tail | |
| Myriopteris intertexta | CNPS-EB: B | coastal lip fern | |
| Navarretia intertexta | CNPS-EB: A2 | needle-leaved navarretia | |
| Navarretia mellita | CNPS-EB: C | honey-scented navarretia | |
| Navarretia pubescens | CNPS-EB: C | downy navarretia | |
| Nemophila parviflora var. parviflora | CNPS-EB: B | small-flowered nemophila | |
| Nemophila pedunculata | CNPS-EB: B | meadow nemophila | |
| Osmorhiza brachypoda | CNPS-EB: C | California cicely | |
| Packera breweri | (formerly Senecio b.) | CNPS-EB: C | Brewer's ragwort, Brewer's butterweed |
| Pentachaeta alsinoides | CNPS-EB: C | tiny pentachaeta | |
| Pentachaeta exilis subsp. exilis | CNPS-EB: A1 | meager pentachaeta | |
| Phacelia breweri | CNPS-EB: B | Brewer's phacelia | |
| Phacelia ramosissima | CNPS-EB: B | branching phacelia | |
| Phacelia rattanii | CNPS-EB: B | Rattan's phacelia | |
| Plagiobothrys canescens var. canescens | CNPS-EB: C | valley popcornflower | |
| Plagiobothrys fulvus var. campestris | CNPS-EB: B | field popcornflower, fulvous popcornflower | |
| Plagiobothrys stipitatus var. stipitatus | (var. micranthus is more commo | CNPS-EB: C | showy great valley popcornflower, stipitate allocarya |
| Plagiobothrys tenellus | CNPS-EB: B | Pacific popcornflower, slender popcornflower | |
| Plagiobothrys trachycarpus | CNPS-EB: C | rough-nutlet popcornflower, rough-fruited allocarya | |
| Platanus racemosa | CNPS-EB: C | western sycamore, California sycamore | |
| Prunus emarginata | CNPS-EB: C | bitter cherry | |
| Prunus subcordata | CNPS-EB: C | Pacific plum, Sierra plum | |
| Quercus berberidifolia | CNPS-EB: C | scrub oak | |
| Quercus lobata | CNPS-EB: B | valley oak, roble | |
| Ranunculus lobbii | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S3 | Lobb's aquatic buttercup | |
| Rhamnus crocea | CNPS-EB: C | spiny redberry | |
| Rhus aromatica | (formerly R. trilobata) | CNPS-EB: C | skunk bush, skunkbrush, squawbush |
| Ribes malvaceum var. malvaceum | CNPS-EB: C | chaparral currant | |
| Rigiopappus leptocladus | CNPS-EB: C | rigiopappus | |
| Rumex californicus | (formerly R. salicifolius var. dentatus) | CNPS-EB: C | willow dock |
| Rumex salicifolius | (formerly R. salicifolius var. salicifolius) | CNPS-EB: B | willow dock |
| Sabulina pusilla | (formerly Minuartia pusilla) | CNPS-EB: A1 | annual sandwort, least sandwort |
| 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 | |
| Scutellaria tuberosa | CNPS-EB: C | Dannie's skullcap | |
| Selaginella bigelovii | CNPS-EB: B | spike-moss | |
| Senecio aronicoides | CNPS-EB: C | rayless ragwort, California butterweed | |
| Senecio flaccidus var. douglasii | CNPS-EB: A2 | Douglas' threadleaf ragwort, shrubby butterweed | |
| Sidalcea diploscypha | CNPS-EB: A1 | fringed checkerbloom, fringed sidalcea | |
| Silene laciniata subsp. californica | (formerly Silene c.) | CNPS-EB: C | Indian pink, California pink, California Indian pink |
| Silene lemmonii | CNPS-EB: A1 | LEMMON'S CATCHFLY | |
| Stebbinsoseris heterocarpa | CNPS-EB: C | grassland silverpuffs, derived microseris | |
| Stellaria nitens | CNPS-EB: C | shining chickweed | |
| Stipa cernua | CNPS-EB: C | nodding needlegrass | |
| Stipa pulchra | CNPS-EB: C | purple needlegrass | |
| Streptanthus albidus subsp. peramoenus | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T2 CNDDB Rank: S2 | most beautiful jewel-flower | |
| Streptanthus glandulosus subsp. glandulosus | CNPS-EB: B | jewelflower | |
| Tetrapteron graciliflorum | CNPS-EB: C | hill sun cup | |
| Thysanocarpus laciniatus | CNPS-EB: B | lacepod | |
| Tonella tenella | CNPS-EB: B | small-flowered tonella | |
| Trifolium barbigerum | CNPS-EB: A2 | bearded clover | |
| Trifolium cyathiferum | CNPS-EB: A1 | BOWL CLOVER | |
| Trifolium depauperatum var. depauperatum | (vars. amplectens and truncatu | CNPS-EB: B | dwarf sack clover |
| Trifolium dichotomum | CNPS-EB: C | branched indian clover | |
| Trifolium fucatum | CNPS-EB: B | bull clover | |
| Trifolium oliganthum | CNPS-EB: C | few-flowered clover | |
| Trifolium olivaceum | CNPS-EB: C | olive clover | |
| Triteleia peduncularis | CNPS-EB: A1 | long-rayed brodiaea | |
| Tropidocarpum gracile | CNPS-EB: B | slender tropidocarpum | |
| Viola douglasii | CNPS-EB: A2 | Douglas' violet, golden violet | |
| Viola purpurea subsp. purpurea | CNPS-EB: A1 | mountain violet | |
| Viola purpurea subsp. quercetorum | CNPS-EB: C | mountain violet | |
| Viola sheltonii | CNPS-EB: A2 | Shelton's violet, fan violet | |
| Wyethia glabra | (W. helenioides is more common | CNPS-EB: C | mule ears |
| Acaena californica | (formerly A. pinnatifida var. californica) | CNPS-EB: C | California acaena |
| Agoseris heterophylla var. unknown | Agoseris heterophylla split into 2 vars. in 2011 Jepson Manual, need field work to resolve vars. | CNPS-EB: B? | annual agoseris |
| Allophyllum divaricatum | CNPS-EB: C | straggling gilia | |
| Alopecurus saccatus | CNPS-EB: B | Howell's meadow foxtail | |
| Arctostaphylos manzanita subsp. manzanita | CNPS-EB: A2 | common manzanita | |
| Calochortus umbellatus | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3? CNDDB Rank: S3? | Oakland star-tulip | |
| Cirsium cymosum var. cymosum | CNPS-EB: C | peregrine thistle | |
| Crassula aquatica | CNPS-EB: B | water pygmy-weed | |
| Cryptantha corollata | formerly C. decipiens. Also includes previous records for C. rattanii | CNPS-EB: A2 | COAST RANGE CRYPTANTHA |
| Eriogonum luteolum var. luteolum | CNPS-EB: A2 | golden-carpet wild buckwheat, golden carpet | |
| Eriophyllum lanatum var. achilleoides | CNPS-EB: C | woolly sunflower | |
| Layia platyglossa | CNPS-EB: B | tidy-tips | |
| Lepidium oxycarpum | CNPS-EB: A2 | sharp-podded pepper-grass | |
| Leptosiphon ciliatus | (formerly Linanthus c.) | CNPS-EB: C | whisker brush |
| Mentzelia affinis | CNPS-EB: B | hydra stick-leaf | |
| Myriopteris covillei | CNPS-EB: C | Coville's lip fern | |
| Phacelia divaricata | CNPS-EB: B | divaricate phacelia | |
| Phacelia malvifolia var. malvifolia | CNPS-EB: A2 | stinging phacelia | |
| Phoradendron leucarpum subsp. macrophyllum | (formerly P. serotinum subsp. macrophyllum, P. macrophyllum) | CNPS-EB: C | big leaf mistletoe |
| Pinus coulteri | CNPS-EB: B | Coulter pine | |
| Pleuropogon californicus var. californicus | CNPS-EB: B | semaphore grass | |
| Psilocarphus brevissimus var. brevissimus | CNPS-EB: B | dwarf woollyheads, dwarf woolly-marbles | |
| Psilocarphus oregonus | CNPS-EB: A2 | Oregon woollyheads, Oregon woolly-marbles | |
| Quercus garryana var. garryana | CNPS-EB: B | Oregon oak | |
| Sagina decumbens subsp. occidentalis | (S. apetala is more common) | CNPS-EB: B | western pearlwort |
| Trifolium grayi | CNPS-EB: A1 | Gray's clover | |
| Turritis glabra | CNPS-EB: B | tower mustard |