| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Amaranthus blitoides | CNPS-EB: C | procumbent pigweed, prostrate amaranth | |
| Amaranthus californicus | CNPS-EB: B | Californian amaranth | |
| Ammannia coccinea | CNPS-EB: A2 | long-leaved ammannia | |
| Bidens frondosa | CNPS-EB: B | sticktight | |
| Calochortus umbellatus | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3? CNDDB Rank: S3? | Oakland star-tulip | |
| Carex lenticularis var. lipocarpa | CNPS-EB: A1 | few-ribbed sedge | |
| Carex nebrascensis | CNPS-EB: B | Nebraska sedge | |
| Cordylanthus pilosus subsp. pilosus | CNPS-EB: B | hairy bird's-beak | |
| Cuscuta campestris | CNPS-EB: A2 | field dodder | |
| Cyperus erythrorhizos | CNPS-EB: B | red-rooted cyperus | |
| Deschampsia cespitosa subsp. cespitosa | CNPS-EB: B-PV | tufted hairgrass | |
| Deschampsia elongata | CNPS-EB: B-PV | slender hair grass | |
| Eclipta prostrata | CNPS-EB: A1 | false daisy | |
| Elatine brachysperma | CNPS-EB: A1 | waterwort | |
| Eleocharis acicularis var. acicularis | CNPS-EB: B | needle spike-rush | |
| Eragrostis hypnoides | CNPS-EB: A2 | ||
| Eragrostis mexicana subsp. virescens | CNPS-EB: A1 | Orcutt's eragrostis | |
| Eryngium jepsonii | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | ||
| Euphorbia serpillifolia subsp. serpillifolia | CNPS-EB: C | thyme-leaved spurge | |
| Helianthella castanea | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Diablo helianthella | |
| Hoita macrostachya | CNPS-EB: B | California hemp | |
| Juncus phaeocephalus var. phaeocephalus | CNPS-EB: B | brownheaded rush | |
| Layia hieracioides | CNPS-EB: B-PV | tall layia | |
| Leptochloa fusca subsp. fascicularis | CNPS-EB: A2 | bearded sprangletop | |
| Persicaria lapathifolia | (formerly Polygonum lapathifol | CNPS-EB: B | willow weed |
| Piperia elongata | CNPS-EB: C | chaparral orchid, wood rein-orchid, elongate piperia | |
| Pseudognaphalium beneolens | (formerly Gnaphalium canescens | CNPS-EB: C | fragrant everlasting |
| Pseudognaphalium biolettii | (formerly Gnaphalium bicolor) | CNPS-EB: A1 | Bioletti's cudweed |
| Rorippa curvisiliqua | CNPS-EB: B | yellow cress | |
| Rorippa palustris subsp. palustris | CNPS-EB: B | marsh yellow-cress | |
| Rumex fueginus | CNPS-EB: A2 | golden dock | |
| Scutellaria californica | CNPS-EB: B | California skullcap | |
| Sequoia sempervirens | CNPS-EB: B | coast redwood | |
| Stipa lepida | CNPS-EB: B-PV | foothill needlegrass | |
| Symphyotrichum subulatum var. parviflorum | (formerly Aster subulatus var. | CNPS-EB: B | slim aster |
| Alisma triviale | (formerly A. plantago-aquatica | CNPS-EB: C | water plantain |
| Alopecurus saccatus | CNPS-EB: B | Howell's meadow foxtail | |
| Amsinckia lunaris | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | bent-flowered fiddleneck | |
| Arctostaphylos glandulosa subsp. glandulosa | CNPS-EB: A2 | Eastwood manzanita | |
| Carex barbarae | CNPS-EB: C | whiteroot sedge, Santa Barbara sedge, St. Barbara's sedge | |
| Cirsium andrewsii | CNPS-EB: *A1 State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | Franciscan thistle | |
| Danthonia californica | CNPS-EB: B-PV | California oat grass | |
| Elatine californica | CNPS-EB: A1 | waterwort | |
| Epilobium campestre | CNPS-EB: B | smooth boisduvalia | |
| Epilobium ciliatum subsp. watsonii | (ssp. ciliatum is more common) | CNPS-EB: A1 | San Francisco willowherb |
| Festuca californica | CNPS-EB: B-PV | California fescue | |
| Fraxinus latifolia | CNPS-EB: B | Oregon ash | |
| Holocarpha macradenia | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 FESA Status: FT CESA Status: CE | Santa Cruz tarplant | |
| Morella californica | (formerly Myrica c.) | CNPS-EB: B | wax myrtle |
| Prunus subcordata | CNPS-EB: C | Pacific plum, Sierra plum | |
| Stipa pulchra | CNPS-EB: B-PV | purple needlegrass | |
| Symphyotrichum lanceolatum var. hesperium | (formerly Aster lanceolatus ss | CNPS-EB: A2 | marsh aster |
| Trifolium fucatum | CNPS-EB: B | bull clover | |
| Turritis glabra | CNPS-EB: B | tower mustard |