| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Cuscuta subinclusa | CNPS-EB: C | canyon dodder | |
| Downingia insignis | CNPS-EB: A1 | cupped downingia | |
| Eriophyllum staechadifolium | CNPS-EB: A2 | seaside woolly sunflower, lizard-tail | |
| Eryngium articulatum | CNPS-EB: A1 | beethistle, coyote-thistle | |
| Garrya flavescens | CNPS-EB: A2 | silk tassel bush | |
| Heterotheca oregona var. scaberrima | CNPS-EB: A1 | Oregon goldenaster | |
| Leptosyne calliopsidea | (formerly Coreopsis c.) | CNPS-EB: A1 | leafy-stemmed coreopsis |
| Sidalcea diploscypha | CNPS-EB: A2 | fringed checkerbloom, fringed sidalcea |