| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Clarkia concinna subsp. concinna | CNPS-EB: C | large godetia | |
| Danthonia californica | CNPS-EB: C | California oat grass | |
| Deschampsia danthonioides | CNPS-EB: C | annual hair grass | |
| Elymus multisetus | CNPS-EB: C | big squirreltail | |
| Elymus xhansenii | CNPS-EB: B | Hansen squirreltail | |
| Helianthella castanea | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Diablo helianthella | |
| Lomatium caruifolium var. caruifolium | CNPS-EB: B | caraway-leaved lomatium | |
| Phoradendron leucarpum subsp. macrophyllum | (formerly P. serotinum subsp. macrophyllum, P. macrophyllum) | CNPS-EB: C | big leaf mistletoe |
| Plagiobothrys fulvus var. campestris | CNPS-EB: B | field popcornflower, fulvous popcornflower | |
| Rhamnus crocea | CNPS-EB: C | spiny redberry | |
| Trifolium depauperatum var. depauperatum | (vars. amplectens and truncatu | CNPS-EB: B | dwarf sack clover |
| Trifolium oliganthum | CNPS-EB: C | few-flowered clover | |
| Triphysaria versicolor subsp. faucibarbata | CNPS-EB: B | smooth owl's-clover | |
| Asclepias cordifolia | (A. californica is more common | CNPS-EB: A1 | purple milkweed |
| Cuscuta subinclusa | CNPS-EB: C | canyon dodder | |
| Pleuropogon californicus var. californicus | CNPS-EB: B | semaphore grass |