| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Ambrosia chamissonis | CNPS-EB: C | beach bur-sage, beach-bur | |
| Atriplex leucophylla | CNPS-EB: B | beach saltbush | |
| Cuscuta pacifica var. pacifica | (formerly C. salina var. major) | CNPS-EB: C | salt-marsh dodder |
| Euphorbia serpillifolia subsp. serpillifolia | CNPS-EB: C | thyme-leaved spurge | |
| Hemizonia congesta subsp. lutescens | CNPS-EB: B | hayfield tarweed | |
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Limonium californicum | CNPS-EB: C | western marsh-rosemary, sea-lavender, ma | |
| Lysimachia minima | (formerly Anagallis minima, Centunculus minimus) | CNPS-EB: A1 | chaffweed |
| Oenothera elata subsp. hookeri | CNPS-EB: B | evening-primrose | |
| Populus trichocarpa | (formerly P. balsamifera var. | CNPS-EB: C | black cottonwood |
| Setaria parviflora | CNPS-EB: B | knotroot bristle grass, perennial foxtail | |
| Astragalus tener var. tener | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T1 CNDDB Rank: S1 | alkali milkvetch | |
| Castilleja rubicundula subsp. lithospermoides | CNPS-EB: B | cream sacs | |
| Cicendia quadrangularis | CNPS-EB: A2 | timwort | |
| Deinandra corymbosa | (formerly Hemizonia corymbosa) | CNPS-EB: A2 | coast tarweed |
| Eriophyllum staechadifolium | CNPS-EB: A2 | seaside woolly sunflower, lizard-tail | |
| Eryngium armatum | CNPS-EB: A1 | coastal button-celery, coast coyote-thistle | |
| Eryngium vaseyi var. vallicola | CNPS-EB: A1 | coyote-thistle, Vasey's coyote-thistle | |
| Fritillaria liliacea | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | fragrant fritillary | |
| Holocarpha macradenia | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 FESA Status: FT CESA Status: CE | Santa Cruz tarplant | |
| Juncus oxymeris | CNPS-EB: A1 | pointed rush | |
| Lasthenia glaberrima | CNPS-EB: B | smooth goldfields | |
| Layia chrysanthemoides | CNPS-EB: A2 | smooth layia | |
| Limnanthes douglasii subsp. douglasii | CNPS-EB: A1 | meadowfoam | |
| Lupinus chamissonis | (historical-1963) | CNPS-EB: A1x | Chamisso's bush lupine |
| Microseris douglasii subsp. tenella | (subsp douglasii is more common) | CNPS-EB: A2 | silver puffs |
| Muilla maritima | CNPS-EB: B | common muilla | |
| Phragmites australis | CNPS-EB: C | common reed | |
| Plantago elongata | CNPS-EB: B | annual coast plantain | |
| Pogogyne douglasii | (historical-1940) | CNPS-EB: A1x | Douglas' beardstyle, Douglas pogogyne |
| Pseudognaphalium beneolens | (formerly Gnaphalium canescens | CNPS-EB: C | fragrant everlasting |
| Ranunculus orthorhynchus var. bloomeri | CNPS-EB: A1x | Bloomer's buttercup | |
| Sagina decumbens subsp. occidentalis | (S. apetala is more common) | CNPS-EB: B | western pearlwort |
| Spartina foliosa | CNPS-EB: B | California cord grass | |
| Spergularia macrotheca var. longistyla | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | large-flowered sand spurry | |
| Spiranthes romanzoffiana | CNPS-EB: A1 | hooded ladies' tresses | |
| Trifolium fucatum | CNPS-EB: C | bull clover | |
| Trifolium hydrophilum | (vars. amplectens and truncatu | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | saline clover |
| Trifolium macraei | CNPS-EB: A1 | Macrae's clover, double-headed clover |