| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Allenrolfea occidentalis | CNPS-EB: C | iodine bush | |
| Astragalus tener var. tener | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T1 CNDDB Rank: S1 | alkali milkvetch | |
| Atriplex argentea var. expansa | CNPS-EB: B | silverscale | |
| Atriplex coronata var. coronata | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4T3 CNDDB Rank: S3 | crownscale | |
| Carex obnupta | CNPS-EB: B | slough sedge | |
| Cephalanthus occidentalis | CNPS-EB: A2 | button bush | |
| Extriplex joaquinana | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | San Joaquin spearscale, San Joaquin saltbush | |
| Hibiscus lasiocarpos var. occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T3 CNDDB Rank: S3 | rose-mallow | |
| Hydrocotyle ranunculoides | CNPS-EB: A2 | floating marsh pennywort | |
| Lasthenia glabrata subsp. glabrata | CNPS-EB: A2 | yellow-ray goldfields | |
| Leersia oryzoides | CNPS-EB: A1 | rice cutgrass | |
| Leptochloa fusca subsp. fascicularis | CNPS-EB: A1 | bearded sprangletop | |
| Lilaeopsis masonii | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G2 CNDDB Rank: S2 CESA Status: CR | Mason's lilaeopsis | |
| Lycopus americanus | CNPS-EB: A2 | cutleaf bugleweed | |
| Persicaria punctata | (formerly Polygonum punctatum) | CNPS-EB: C | water smartweed |
| Phragmites australis | CNPS-EB: C | common reed | |
| Psilocarphus brevissimus var. brevissimus | CNPS-EB: B | dwarf woollyheads, dwarf woolly-marbles | |
| Rorippa curvisiliqua | CNPS-EB: B | yellow cress | |
| Rorippa palustris subsp. palustris | CNPS-EB: B | marsh yellow-cress | |
| Salix gooddingii | CNPS-EB: B | Goodding's black willow | |
| Setaria parviflora | CNPS-EB: B | knotroot bristle grass, perennial foxtail | |
| Suaeda nigra | (formerly S. moquinii) | CNPS-EB: B | bush seepweed |
| Eriogonum angulosum | CNPS-EB: B | angle-stem wild buckwheat, angle-stemmed eriogonum | |
| Eryngium racemosum | CNPS-EB: *A1x State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 CESA Status: CE | delta button-celery | |
| Helenium bigelovii | (H. puberulum is more common) | CNPS-EB: A2 | Bigelow's sneezeweed |
| Lasthenia ferrisiae | CNPS-EB: *A1 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | Ferris' goldfields | |
| Lasthenia fremontii | CNPS-EB: A1 | Fremont's goldfields | |
| Lepidium acutidens | CNPS-EB: C | sharp-toothed pepper-grass | |
| Lepidium dictyotum | CNPS-EB: B | alkali pepper-grass | |
| Limnanthes douglasii subsp. rosea | CNPS-EB: A1x | meadowfoam | |
| Lupinus benthamii | (historical-1955) | CNPS-EB: A1x | spider lupine |
| Microseris acuminata | CNPS-EB: A1 | Sierra Foothills microseris | |
| Myosurus minimus subsp. minimus | CNPS-EB: C | common mouse-tail | |
| Plagiobothrys leptocladus | CNPS-EB: A1 | alkali plagiobothrys | |
| Plagiobothrys stipitatus var. stipitatus | (var. micranthus is more commo | CNPS-EB: C | showy great valley popcornflower, stipitate allocarya |
| Plantago elongata | CNPS-EB: B | annual coast plantain | |
| Sagittaria latifolia | CNPS-EB: A1 | arrowhead | |
| Scutellaria galericulata | (historical-1949) | CNPS-EB: *A1x State CNPS: 2B.2 Global Rank: G5 CNDDB Rank: S2 | marsh skullcap |
| Spergularia macrotheca var. longistyla | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | large-flowered sand spurry | |
| Symphyotrichum lentum | (formerly Aster lentus) | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Suisun marsh aster |
| Trifolium depauperatum var. depauperatum | (vars. amplectens and truncatu | CNPS-EB: B | dwarf sack clover |
| Tropidocarpum capparideum | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 | caper-fruited tropidocarpum | |
| Verbena hastata | CNPS-EB: A1 | blue vervain |