Briones Valley - W of Brentwood
| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Atriplex coronata var. coronata | CNPS-EB: *A2 State CNPS: 4.2 | crownscale | |
| Pogogyne zizyphoroides | CNPS-EB: A2 | Sacramento beardstyle | |
| Arctostaphylos manzanita subsp. manzanita | CNPS-EB: A2 | common manzanita | |
| Blepharizonia plumosa | CNPS-EB: *A2 State CNPS: 1B.1 | big tarplant | |
| Eryngium aristulatum var. aristulatum | CNPS-EB: A2 | ||
| Myosurus sessilis | CNPS-EB: A2 | sessile mouse-tail | |
| Navarretia cotulifolia | CNPS-EB: *A2 State CNPS: 4.2 | cotula navarretia | |
| Pilularia americana | CNPS-EB: A1 | pillwort | |
| Salvia carduacea | (historical-1946) | CNPS-EB: A1x | thistle sage |
| Brodiaea terrestris subsp. terrestris | CNPS-EB: B-PV | dwarf brodiaea | |
| Allenrolfea occidentalis | CNPS-EB: B-PV | iodine bush | |
| Downingia pulchella | CNPS-EB: B-PV | flat-faced downingia | |
| Eriogonum angulosum | CNPS-EB: B | angle-stem wild buckwheat, angle-stemmed eriogonum | |
| Gilia capitata subsp. staminea | CNPS-EB: B-PV | blue field gilia | |
| Gruvelia pusilla | (formerly Pectocarya pusilla) | CNPS-EB: C | little pectocarya |
| Gutierrezia californica | CNPS-EB: B-PV | California matchweed | |
| Lepidium latipes | CNPS-EB: B-PV | dwarf peppergrass | |
| Malacothamnus fremontii var. fremontii | CNPS-EB: B-PV | white-coat mallow | |
| Monolopia major | CNPS-EB: B | cupped monolopia | |
| Myosurus minimus subsp. minimus | CNPS-EB: B-PV | common mouse-tail | |
| Phacelia ciliata | CNPS-EB: B | Great Valley phacelia, Great Valley phacelia | |
| Phacelia tanacetifolia | CNPS-EB: B | tansy phacelia | |
| Plagiobothrys acanthocarpus | CNPS-EB: B-PV | adobe popcornflower, adobe allocarya | |
| Plantago elongata | CNPS-EB: B-PV | annual coast plantain | |
| Triglochin scilloides | CNPS-EB: C | flowering-quillwort | |
| Tropidocarpum gracile | CNPS-EB: B-PV | slender tropidocarpum |
