| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Adiantum aleuticum | (A. jordanii is more common) | CNPS-EB: A1 | five-finger fern |
| Alisma triviale | (formerly A. plantago-aquatica | CNPS-EB: C | water plantain |
| Amsinckia lycopsoides | CNPS-EB: C | bugloss-flowered fiddleneck, bugloss fiddleneck | |
| Aralia californica | CNPS-EB: C | elk clover | |
| Arbutus menziesii | CNPS-EB: B | Pacific madrone | |
| Asclepias eriocarpa | CNPS-EB: A1 | KOTOLO | |
| Berula erecta | CNPS-EB: C | cutleaf water-parsnip | |
| Calochortus umbellatus | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3? CNDDB Rank: S3? | Oakland star-tulip | |
| Cirsium brevistylum | CNPS-EB: B | indian thistle | |
| Clematis ligusticifolia | CNPS-EB: C | western virgin's bower, virgin's bower | |
| Erigeron philadelphicus var. philadelphicus | CNPS-EB: C | fleabane | |
| Eriogonum gracile var. gracile | CNPS-EB: C | slender woolly wild buckwheat, slender buckwheat | |
| Garrya elliptica | CNPS-EB: B | silk tassel bush | |
| Layia hieracioides | CNPS-EB: C | tall layia | |
| Panicum capillare | CNPS-EB: A2 | witch grass | |
| Persicaria lapathifolia | (formerly Polygonum lapathifol | CNPS-EB: B | willow weed |
| Persicaria punctata | (formerly Polygonum punctatum) | CNPS-EB: C | water smartweed |
| Platanus racemosa | CNPS-EB: C | western sycamore, California sycamore | |
| Prunus ilicifolia subsp. ilicifolia | CNPS-EB: B | islay, holly-leafed cherry | |
| Quercus garryana x durata | CNPS-EB: A1 | Oregon oak x leather oak | |
| Quercus palmeri | CNPS-EB: A2 | Palmer's oak | |
| Rhamnus crocea | CNPS-EB: C | spiny redberry | |
| Rumex transitorius | CNPS-EB: B | willow dock | |
| Scirpus microcarpus | CNPS-EB: C | small-fruited bulrush | |
| Stephanomeria elata | CNPS-EB: A1 | stephanomeria | |
| 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 | |
| Taxus brevifolia | CNPS-EB: A1 | PACIFIC YEW | |
| Trisetum canescens | CNPS-EB: A2 | tall trisetum | |
| Zeltnera davyi | (formerly Centaurium d.) | CNPS-EB: B | Davy's centaury, conchalagua |
| Acaena californica | (formerly A. pinnatifida var. californica) | CNPS-EB: C | California acaena |
| Agoseris retrorsa | CNPS-EB: A2 | spear-leaved agoseris | |
| Allium amplectens | CNPS-EB: A2 | narrow-leaved onion | |
| Amaranthus powellii | CNPS-EB: A1 | Powell's amaranth | |
| Asclepias speciosa | (A. californica is more common | CNPS-EB: B | showy milkweed, milkweed |
| Carex barbarae | CNPS-EB: C | whiteroot sedge, Santa Barbara sedge, St. Barbara's sedge | |
| Carex praegracilis | CNPS-EB: C | black creeper sedge, freeway sedge, deer-bed sedge | |
| Carex senta | CNPS-EB: A1 | western rough sedge, rough sedge | |
| Castilleja subinclusa subsp. franciscana | CNPS-EB: A1 | Franciscan indian paintbrush | |
| Chenopodium rubrum | CNPS-EB: A1 | red pigweed, red goosefoot | |
| Corallorhiza striata | (C. maculata is more common) | CNPS-EB: A1x | striped coralroot |
| Corethrogyne filaginifolia | (formerly Lessingia f. var. f. | CNPS-EB: C | California aster |
| Cornus sericea subsp. occidentalis | CNPS-EB: C | western dogwood | |
| Cornus sericea subsp. sericea | CNPS-EB: C | American dogwood | |
| Cyperus niger | CNPS-EB: A2 | black sedge | |
| Cyperus odoratus | CNPS-EB: A1 | coarse cyperus | |
| Danthonia californica | CNPS-EB: C | California oat grass | |
| Elymus multisetus | CNPS-EB: C | big squirreltail | |
| Epilobium ciliatum subsp. watsonii | (ssp. ciliatum is more common) | CNPS-EB: A1 | San Francisco willowherb |
| Eriophyllum lanatum var. achilleoides | CNPS-EB: C | woolly sunflower | |
| Hemizonia congesta subsp. lutescens | CNPS-EB: B | hayfield tarweed | |
| Heterotheca sessiliflora subsp. bolanderi | (H. s. ssp. echioides is more | CNPS-EB: C | Bolander goldenaster |
| Hordeum brachyantherum subsp. californicum | (ssp. brachyantherum is more common | CNPS-EB: A2 | California barley |
| Juncus articulatus subsp. articulatus | CNPS-EB: A1x | jointed rush | |
| Juncus phaeocephalus var. paniculatus | CNPS-EB: B | panicled rush, brown-headed rush | |
| Koeleria macrantha | CNPS-EB: C | june grass | |
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Ligusticum apiifolium | CNPS-EB: A2 | Pacific lovage | |
| Marah oregana | CNPS-EB: B | coast man-root | |
| Montia fontana | CNPS-EB: C | water chickweed, blinks, water chickweed | |
| Nemophila parviflora var. parviflora | CNPS-EB: B | small-flowered nemophila | |
| Plagiobothrys fulvus var. campestris | CNPS-EB: B | field popcornflower, fulvous popcornflower | |
| Polypodium scouleri | CNPS-EB: A1 | leather-leaf fern | |
| Prunus emarginata | CNPS-EB: C | bitter cherry | |
| Pseudognaphalium microcephalum | (formerly Gnaphalium canescens | CNPS-EB: A1 | white everlasting |
| Quercus berberidifolia | CNPS-EB: C | scrub oak | |
| Quercus durata var. durata | CNPS-EB: B | leather oak | |
| Quercus garryana x dumosa | CNPS-EB: A1x | Oregon oak x scrub oak | |
| Quercus lobata | CNPS-EB: B | valley oak, roble | |
| Quercus wislizeni var. frutescens | CNPS-EB: C | shrubby interior live oak | |
| Quercus xjolonensis | CNPS-EB: A1? | blue oak x valley oak | |
| Rosa spithamea | CNPS-EB: C | coast ground rose, ground rose | |
| Rumex fueginus | CNPS-EB: A2 | golden dock | |
| Rumex salicifolius var. unknown | CNPS-EB: A2? | willow dock | |
| Sagittaria latifolia | CNPS-EB: A1 | arrowhead | |
| Selaginella bigelovii | CNPS-EB: B | spike-moss | |
| Silene antirrhina | CNPS-EB: A1 | sleepy catchfly, snapdragon catchfly | |
| Stachys ajugoides | (var. rigida is more common) | CNPS-EB: A2 | bugle hedge nettle |
| Stipa lepida | CNPS-EB: C | foothill needlegrass | |
| Triglochin scilloides | CNPS-EB: C | flowering-quillwort | |
| Trillium ovatum subsp. ovatum | CNPS-EB: A2 | white trillium | |
| Turritis glabra | CNPS-EB: B | tower mustard | |
| Wyethia glabra | (W. helenioides is more common | CNPS-EB: C | mule ears |