| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Meconella oregana | CNPS-EB: *A2 State CNPS: 1B.1 | Oregon meconella | |
| Calamagrostis rubescens | CNPS-EB: A2 | pine reed grass, pine grass | |
| Dirca occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 | western leatherwood | |
| Erigeron philadelphicus var. philadelphicus | CNPS-EB: C | fleabane | |
| Layia gaillardioides | CNPS-EB: B-PV | woodland layia | |
| Plagiobothrys tenellus | CNPS-EB: C | Pacific popcornflower, slender popcornflower |