| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Cicendia quadrangularis | CNPS-EB: A2 | timwort | |
| Cuscuta pacifica var. pacifica | (formerly C. salina var. major) | CNPS-EB: C | salt-marsh dodder |
| Spergularia macrotheca var. macrotheca | CNPS-EB: A2 | large-flowered sand spurry | |
| Spartina foliosa | CNPS-EB: B | California cord grass | |
| Stipa pulchra | CNPS-EB: C | purple needlegrass |