| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Arctostaphylos manzanita subsp. manzanita | CNPS-EB: A2 | common manzanita | |
| Helianthella castanea | CNPS-EB: *A2 State CNPS: 1B.2 | Diablo helianthella | |
| Cordylanthus pilosus subsp. pilosus | CNPS-EB: B | hairy bird's-beak | |
| Deschampsia danthonioides | CNPS-EB: B-PV | annual hair grass | |
| Horkelia californica var. frondosa | CNPS-EB: B | leafy horkelia |