| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Calystegia sepium subsp. limnophila | CNPS-EB: B | hedge bindweed | |
| Dirca occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | western leatherwood | |
| Elymus elymoides var. elymoides | CNPS-EB: B | squirreltail | |
| 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 | |
| Isolepis carinata | (formerly Scirpus koilolepis) | CNPS-EB: A1 | dwarf club-rush |
| Layia gaillardioides | CNPS-EB: A2 | woodland layia | |
| Marah oregana | CNPS-EB: C | coast man-root | |
| Myosurus minimus subsp. minimus | CNPS-EB: C | common mouse-tail | |
| Quercus garryana var. garryana | CNPS-EB: B | Oregon oak | |
| Senecio aronicoides | CNPS-EB: C | rayless ragwort, California butterweed | |
| Stipa cernua | CNPS-EB: C | nodding needlegrass | |
| Stipa lepida | CNPS-EB: C | foothill needlegrass | |
| Stipa pulchra | CNPS-EB: C | purple needlegrass | |
| Trifolium oliganthum | CNPS-EB: C | few-flowered clover | |
| Agrostis hallii | CNPS-EB: A2 | Hall's bent grass | |
| Clarkia biloba subsp. biloba | CNPS-EB: A2 | lobed godetia | |
| Mentzelia lindleyi | CNPS-EB: B | Lindley's blazing star |