| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Lysimachia minima | (formerly Anagallis minima, Centunculus minimus) | CNPS-EB: A1 | chaffweed |
| Populus trichocarpa | (formerly P. balsamifera var. | CNPS-EB: C | black cottonwood |
| Setaria parviflora | CNPS-EB: B | knotroot bristle grass, perennial foxtail | |
| Deinandra corymbosa | (formerly Hemizonia corymbosa) | CNPS-EB: A2 | coast tarweed |
| Eryngium armatum | CNPS-EB: A1 | coastal button-celery, coast coyote-thistle | |
| Hemizonia congesta subsp. lutescens | CNPS-EB: B | hayfield tarweed | |
| Holocarpha macradenia | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 FESA Status: FT CESA Status: CE | Santa Cruz tarplant | |
| Lasthenia glaberrima | CNPS-EB: B | smooth goldfields | |
| Lupinus chamissonis | (historical-1963) | CNPS-EB: A1x | Chamisso's bush lupine |
| Spiranthes romanzoffiana | CNPS-EB: A1 | hooded ladies' tresses | |
| Trifolium fucatum | CNPS-EB: B | bull clover |