| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Alisma triviale | (formerly A. plantago-aquatica | CNPS-EB: C | water plantain |
| Aralia californica | CNPS-EB: B-PV | elk clover | |
| Arbutus menziesii | CNPS-EB: C | Pacific madrone | |
| Berula erecta | CNPS-EB: C | cutleaf water-parsnip | |
| Chrysolepis chrysophylla var. minor | CNPS-EB: A2 | golden chinquapin | |
| Clematis ligusticifolia | CNPS-EB: C | western virgin's bower, virgin's bower | |
| Eriogonum gracile var. gracile | CNPS-EB: C | slender woolly wild buckwheat, slender buckwheat | |
| Garrya elliptica | CNPS-EB: B-PV | silk tassel bush | |
| Persicaria lapathifolia | (formerly Polygonum lapathifol | CNPS-EB: B | willow weed |
| Persicaria punctata | (formerly Polygonum punctatum) | CNPS-EB: C | water smartweed |
| Quercus palmeri | CNPS-EB: A2 | Palmer's oak | |
| Rhamnus crocea | CNPS-EB: B-PV | spiny redberry | |
| Rumex transitorius | CNPS-EB: B | willow dock | |
| 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 | |
| Amaranthus powellii | CNPS-EB: A1 | Powell's amaranth | |
| Carex barbarae | CNPS-EB: C | whiteroot sedge, Santa Barbara sedge, St. Barbara's sedge | |
| Castilleja subinclusa subsp. franciscana | CNPS-EB: A1 | Franciscan indian paintbrush | |
| Chenopodium rubrum | CNPS-EB: A1 | red pigweed, red goosefoot | |
| 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 | |
| Erigeron philadelphicus var. philadelphicus | CNPS-EB: C | fleabane | |
| Heterotheca sessiliflora subsp. bolanderi | (H. s. ssp. echioides is more | CNPS-EB: C | Bolander goldenaster |
| Koeleria macrantha | CNPS-EB: B-PV | june grass | |
| Marah oregana | CNPS-EB: B | coast man-root | |
| Platanus racemosa | CNPS-EB: C | western sycamore, California sycamore | |
| Quercus berberidifolia | CNPS-EB: C | scrub oak | |
| Quercus durata var. durata | CNPS-EB: B | leather oak | |
| Quercus lobata | CNPS-EB: C | valley oak, roble | |
| Silene antirrhina | CNPS-EB: A1 | sleepy catchfly, snapdragon catchfly | |
| Stipa lepida | CNPS-EB: B-PV | foothill needlegrass | |
| Stipa pulchra | CNPS-EB: B-PV | purple needlegrass | |
| Trillium ovatum subsp. ovatum | CNPS-EB: A2 | white trillium |