| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Agoseris retrorsa | CNPS-EB: A2 | spear-leaved agoseris | |
| Alisma triviale | (formerly A. plantago-aquatica | CNPS-EB: C | water plantain |
| Asclepias speciosa | (A. californica is more common | CNPS-EB: B | showy milkweed, milkweed |
| Corallorhiza striata | (C. maculata is more common) | CNPS-EB: A1x | striped coralroot |
| Eriophyllum lanatum var. achilleoides | CNPS-EB: C | woolly sunflower | |
| Hemizonia congesta subsp. lutescens | CNPS-EB: B | hayfield tarweed | |
| Ligusticum apiifolium | CNPS-EB: A2 | Pacific lovage | |
| Prunus emarginata | CNPS-EB: C | bitter cherry | |
| Rumex fueginus | CNPS-EB: A2 | golden dock | |
| Sagittaria latifolia | CNPS-EB: A1x | arrowhead |