| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Acaena californica | (formerly A. pinnatifida var. californica) | CNPS-EB: C | California acaena |
| Adiantum aleuticum | (A. jordanii is more common) | CNPS-EB: A1 | five-finger fern |
| Alisma triviale | (formerly A. plantago-aquatica | CNPS-EB: C | water plantain |
| Amelanchier utahensis | CNPS-EB: C | Utah service-berry | |
| Amsinckia lunaris | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | bent-flowered fiddleneck | |
| Apocynum androsaemifolium | CNPS-EB: A2 | bitter dogbane, dogbane | |
| Aralia californica | CNPS-EB: C | elk clover | |
| Asarum caudatum | CNPS-EB: B | wild-ginger | |
| Calamagrostis rubescens | CNPS-EB: B | pine reed grass, pine grass | |
| Calochortus umbellatus | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3? CNDDB Rank: S3? | Oakland star-tulip | |
| Carex barbarae | CNPS-EB: C | whiteroot sedge, Santa Barbara sedge, St. Barbara's sedge | |
| Carex densa | CNPS-EB: B | dense sedge | |
| Carex nebrascensis | CNPS-EB: B | Nebraska sedge | |
| Carex praegracilis | CNPS-EB: C | black creeper sedge, freeway sedge, deer-bed sedge | |
| Carex subbracteata | CNPS-EB: B | small-bracted sedge | |
| Cirsium andrewsii | CNPS-EB: *A1 State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | Franciscan thistle | |
| Cornus sericea subsp. sericea | CNPS-EB: C | American dogwood | |
| Cornus sericea subsp. unknown | CNPS-EB: C? | American dogwood | |
| Danthonia californica | CNPS-EB: C | California oat grass | |
| Delphinium nudicaule | CNPS-EB: C | red larkspur, orange larkspur | |
| Deschampsia elongata | CNPS-EB: C | slender hair grass | |
| Dirca occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | western leatherwood | |
| Downingia pulchella | CNPS-EB: B | flat-faced downingia | |
| Elymus multisetus | CNPS-EB: C | big squirreltail | |
| Elymus xhansenii | CNPS-EB: B | Hansen squirreltail | |
| Epilobium campestre | CNPS-EB: B | smooth boisduvalia | |
| Erigeron petrophilus var. petrophilus | CNPS-EB: B | rock daisy | |
| Erigeron philadelphicus var. philadelphicus | CNPS-EB: C | fleabane | |
| Festuca idahoensis | CNPS-EB: C | Idaho fescue, blue bunchgrass | |
| Fraxinus latifolia | CNPS-EB: B | Oregon ash | |
| Garrya elliptica | CNPS-EB: B | silk tassel bush | |
| Gruvelia pusilla | (formerly Pectocarya pusilla) | CNPS-EB: B | little pectocarya |
| Helianthella castanea | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Diablo helianthella | |
| Horkelia californica var. frondosa | CNPS-EB: B | leafy horkelia | |
| Iris douglasiana | CNPS-EB: B | Douglas iris | |
| Isolepis carinata | (formerly Scirpus koilolepis) | CNPS-EB: A1 | dwarf club-rush |
| Isolepis cernua | (formerly Scirpus cernuus) | CNPS-EB: C | low club-rush |
| Koeleria macrantha | CNPS-EB: C | june grass | |
| Layia gaillardioides | CNPS-EB: A2 | woodland layia | |
| Layia hieracioides | CNPS-EB: C | tall layia | |
| Lupinus arboreus | CNPS-EB: A2 | yellow bush lupine | |
| Meconella oregana | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G2 CNDDB Rank: S2 | Oregon meconella | |
| Melica californica | CNPS-EB: C | California melic | |
| Morella californica | (formerly Myrica c.) | CNPS-EB: B | wax myrtle |
| Penstemon heterophyllus var. heterophyllus | CNPS-EB: B | chaparral penstemon | |
| Penstemon heterophyllus var. purdyi | CNPS-EB: A2 | foothill penstemon | |
| Platanus racemosa | CNPS-EB: C | western sycamore, California sycamore | |
| Pleuropogon californicus var. californicus | CNPS-EB: B | semaphore grass | |
| Prunella vulgaris var. lanceolata | (var. vulgaris is more common) | CNPS-EB: B | selfheal |
| Quercus lobata | CNPS-EB: B | valley oak, roble | |
| Quercus wislizeni var. frutescens | CNPS-EB: C | shrubby interior live oak | |
| Rhamnus crocea | CNPS-EB: C | spiny redberry | |
| Rosa spithamea | CNPS-EB: C | coast ground rose, ground rose | |
| Rumex fueginus | CNPS-EB: A2 | golden dock | |
| Scutellaria californica | CNPS-EB: B | California skullcap | |
| Senecio aronicoides | CNPS-EB: C | rayless ragwort, California butterweed | |
| Stachys ajugoides | (var. rigida is more common) | CNPS-EB: A2 | bugle hedge nettle |
| Stebbinsoseris heterocarpa | CNPS-EB: C | grassland silverpuffs, derived microseris | |
| Stipa cernua | CNPS-EB: C | nodding needlegrass | |
| Stipa pulchra | CNPS-EB: C | purple needlegrass | |
| Tellima grandiflora | CNPS-EB: C | fringe cups | |
| Trifolium fucatum | CNPS-EB: B | bull clover | |
| Triphysaria versicolor subsp. faucibarbata | CNPS-EB: B | smooth owl's-clover | |
| Wyethia glabra | (W. helenioides is more common | CNPS-EB: C | mule ears |
| Agrostis hallii | CNPS-EB: A2 | Hall's bent grass | |
| Aphyllon purpureum | CNPS-EB: C | naked broomrape | |
| Arbutus menziesii | CNPS-EB: B | Pacific madrone | |
| Arnica discoidea | CNPS-EB: B | rayless arnica | |
| Carex obnupta | CNPS-EB: B | slough sedge | |
| Castilleja rubicundula subsp. lithospermoides | CNPS-EB: B | cream sacs | |
| Ceanothus thyrsiflorus var. thyrsiflorus | CNPS-EB: B | blue blossom, California lilac | |
| Cicuta douglasii | CNPS-EB: A2 | water-hemlock | |
| Cirsium quercetorum | CNPS-EB: A2 | brownie thistle | |
| Cordylanthus pilosus subsp. pilosus | CNPS-EB: B | hairy bird's-beak | |
| Datisca glomerata | CNPS-EB: C | durango root | |
| Deschampsia cespitosa subsp. holciformis | CNPS-EB: B | tufted hairgrass | |
| Dichelostemma volubile | 2 questionable ID sites. Needs field research | CNPS-EB: A1? | twining brodiaea, snake lily |
| Eleocharis acicularis var. acicularis | CNPS-EB: B | needle spike-rush | |
| Epilobium ciliatum subsp. watsonii | (ssp. ciliatum is more common) | CNPS-EB: A1 | San Francisco willowherb |
| Eryngium jepsonii | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | ||
| Festuca californica | CNPS-EB: C | California fescue | |
| Festuca rubra | CNPS-EB: C | red fescue | |
| Heterotheca sessiliflora subsp. bolanderi | (H. s. ssp. echioides is more | CNPS-EB: C | Bolander goldenaster |
| Hosackia oblongifolia var. oblongifolia | Unclear if it occurs in the East Bay | CNPS-EB: A1? | narrow-leaved lotus |
| Lilium pardalinum subsp. pardalinum | CNPS-EB: A1 | leopard lily | |
| Meconella californica | CNPS-EB: A1x | California meconella | |
| Microseris douglasii subsp. tenella | (subsp douglasii is more common) | CNPS-EB: A2 | silver puffs |
| Monolopia major | CNPS-EB: B | cupped monolopia | |
| Piperia elegans subsp. elegans | CNPS-EB: C | coast piperia, elegant piperia | |
| Plagiobothrys tenellus | CNPS-EB: B | Pacific popcornflower, slender popcornflower | |
| Polystichum imbricans subsp. imbricans | CNPS-EB: A1x | rock sword fern | |
| Prunus emarginata | CNPS-EB: C | bitter cherry | |
| Psilocarphus chilensis | (formerly P. tenellus var. glo | CNPS-EB: A1 | round woolly marbles, round woolly-marbles |
| Sedum spathulifolium | CNPS-EB: B | broadleaf stonecrop, Pacific stonecrop | |
| 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 |
| Sisyrinchium californicum | CNPS-EB: A1 | golden-eyed-grass | |
| Stipa lepida | CNPS-EB: C | foothill needlegrass | |
| Streptanthus glandulosus subsp. glandulosus | CNPS-EB: B | jewelflower | |
| Trifolium oliganthum | CNPS-EB: C | few-flowered clover | |
| Turritis glabra | CNPS-EB: B | tower mustard |