| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Delphinium hesperium subsp. hesperium | CNPS-EB: B | western larkspur | |
| Dirca occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | western leatherwood | |
| Piperia elegans subsp. elegans | CNPS-EB: C | coast piperia, elegant piperia | |
| Rhus aromatica | (formerly R. trilobata) | CNPS-EB: C | skunk bush, skunkbrush, squawbush |
| Rumex occidentalis | CNPS-EB: A2 | western dock | |
| Stipa pulchra | CNPS-EB: C | purple needlegrass | |
| Cirsium quercetorum | CNPS-EB: A2 | brownie thistle | |
| Heterotheca sessiliflora var. bolanderioides | CNPS-EB: A1x | golden aster |