| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Allophyllum gilioides subsp. violaceum | (ssp. gilioides is more common | CNPS-EB: B-PV | straggling gilia |
| Amsinckia lycopsoides | CNPS-EB: C | bugloss-flowered fiddleneck, bugloss fiddleneck | |
| Aphyllon californicum subsp. jepsonii | CNPS-EB: A1 | Jepson broom-rape | |
| Apiastrum angustifolium | CNPS-EB: C | wild celery | |
| Camissoniopsis micrantha | CNPS-EB: B-PV | small primrose | |
| Cirsium cymosum var. cymosum | CNPS-EB: B-PV | peregrine thistle | |
| Delphinium hesperium subsp. hesperium | CNPS-EB: B | western larkspur | |
| Dudleya cymosa subsp. paniculata | CNPS-EB: B-PV | spreading dudleya | |
| Elymus elymoides var. elymoides | CNPS-EB: B | squirreltail | |
| Eriogonum luteolum var. luteolum | CNPS-EB: A2 | golden-carpet wild buckwheat, golden carpet | |
| Eriophyllum jepsonii | CNPS-EB: *A2 State CNPS: 4.3 Global Rank: G3 CNDDB Rank: S3 | Jepson's woolly sunflower | |
| Eriophyllum lanatum var. achilleoides | CNPS-EB: C | woolly sunflower | |
| Forestiera pubescens | CNPS-EB: B-PV | desert olive | |
| Galium andrewsii subsp. gatense | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5T3 CNDDB Rank: S3 | phlox-leaf serpentine bedstraw, serpentine bedstraw | |
| Gruvelia pusilla | (formerly Pectocarya pusilla) | CNPS-EB: B | little pectocarya |
| Hesperolinon californicum | CNPS-EB: B-PV | California dwarf flax | |
| Koeleria macrantha | CNPS-EB: B-PV | june grass | |
| Melica californica | CNPS-EB: B-PV | California melic | |
| Nicotiana quadrivalvis | CNPS-EB: B | indian tobacco | |
| Pseudognaphalium beneolens | (formerly Gnaphalium canescens | CNPS-EB: C | fragrant everlasting |
| Quercus lobata | CNPS-EB: C | valley oak, roble | |
| Ranunculus canus var. canus | CNPS-EB: C | Sacramento Valley buttercup | |
| Stellaria nitens | CNPS-EB: B-PV | shining chickweed | |
| Stipa lepida | CNPS-EB: B-PV | foothill needlegrass | |
| Stipa pulchra | CNPS-EB: B-PV | purple needlegrass | |
| Trifolium oliganthum | CNPS-EB: C | few-flowered clover | |
| Alopecurus saccatus | CNPS-EB: B | Howell's meadow foxtail | |
| Aphyllon tuberosum | CNPS-EB: B-PV | bulbous broom-rape | |
| Eriogonum truncatum | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 | Mount Diablo buckwheat | |
| Lepidium oxycarpum | CNPS-EB: A2 | sharp-podded pepper-grass | |
| Microseris elegans | CNPS-EB: A1 | elegant microseris | |
| Phragmites australis | CNPS-EB: B-PV | common reed | |
| Stachys ajugoides | (var. rigida is more common) | CNPS-EB: A2 | bugle hedge nettle |