| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Alisma triviale | (formerly A. plantago-aquatica | CNPS-EB: C | water plantain |
| Amaranthus powellii | CNPS-EB: A1 | Powell's amaranth | |
| Bidens laevis | CNPS-EB: A2 | bur-marigold | |
| Bolboschoenus fluviatilis | (formerly Scirpus f.) | CNPS-EB: A1x | river bulrush |
| Bolboschoenus maritimus subsp. paludosus | (formerly Scirpus m.) | CNPS-EB: C | bulrush |
| Chenopodium rubrum | CNPS-EB: A1 | red pigweed, red goosefoot | |
| Cuscuta campestris | CNPS-EB: A1 | field dodder | |
| Downingia pulchella | CNPS-EB: B | flat-faced downingia | |
| Juncus phaeocephalus var. paniculatus | CNPS-EB: B | panicled rush, brown-headed rush | |
| Juncus phaeocephalus var. phaeocephalus | CNPS-EB: B | brownheaded rush | |
| Lasthenia glabrata subsp. glabrata | CNPS-EB: A2 | yellow-ray goldfields | |
| Persicaria lapathifolia | (formerly Polygonum lapathifol | CNPS-EB: B | willow weed |
| Plagiobothrys glaber | CNPS-EB: *A1 State CNPS: 1A Global Rank: GX CNDDB Rank: SX | hairless popcornflower | |
| Plantago elongata | CNPS-EB: B | annual coast plantain | |
| Rumex fueginus | CNPS-EB: A2 | golden dock | |
| Rumex salicifolius | (formerly R. salicifolius var. salicifolius) | CNPS-EB: B | willow dock |
| Rumex transitorius | CNPS-EB: B | willow dock | |
| Sparganium eurycarpum var. eurycarpum | CNPS-EB: A1 | bur-reed | |
| Sparganium eurycarpum var. greenei | CNPS-EB: A1 | Greene's bur-reed | |
| Stachys albens | CNPS-EB: B | white hedge nettle | |
| Symphyotrichum lanceolatum var. hesperium | (formerly Aster lanceolatus ss | CNPS-EB: A2 | marsh aster |
| Symphyotrichum subulatum var. parviflorum | (formerly Aster subulatus var. | CNPS-EB: B | slim aster |
| Trifolium fucatum | CNPS-EB: C | bull clover |