| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Balsamorhiza macrolepis | CNPS-EB: *A1 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | big-scale balsamroot | |
| Cuscuta campestris | CNPS-EB: A1 | field dodder | |
| Muilla maritima | CNPS-EB: B | common muilla | |
| Centromadia parryi subsp. congdonii | (formerly Hemizonia p. ssp. c. | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G3T2 CNDDB Rank: S2 | Congdon's tarplant |
| Chenopodium berlandieri var. sinuatum | CNPS-EB: A1 | ||
| Chenopodium berlandieri var. unknown | Split into 2 varieties. Sites need to be surveyed to determine vars.. | CNPS-EB: A2? | pitseed goosefoot |
| Elymus stebbinsii | CNPS-EB: A1x | Stebbins' wheat grass, Parish's wheat-grass | |
| Erigeron philadelphicus var. philadelphicus | CNPS-EB: C | fleabane | |
| Eriogonum fasciculatum var. foliolosum | CNPS-EB: A1 | leafy California buckwheat, California buckwheat | |
| Fritillaria liliacea | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | fragrant fritillary | |
| Hesperocyparis sargentii | (formerly Cupressus s.) | CNPS-EB: A1 | Sargent cypress |
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Stachys ajugoides | (var. rigida is more common) | CNPS-EB: A2 | bugle hedge nettle |