| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Calochortus umbellatus | CNPS-EB: *A2 State CNPS: 4.2 | Oakland star-tulip | |
| Dirca occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 | western leatherwood | |
| Carex nebrascensis | CNPS-EB: B | Nebraska sedge | |
| Cyperus erythrorhizos | CNPS-EB: B | red-rooted cyperus | |
| Deschampsia cespitosa subsp. cespitosa | CNPS-EB: B-PV | tufted hairgrass | |
| Eleocharis acicularis var. acicularis | CNPS-EB: B | needle spike-rush | |
| Populus trichocarpa | (formerly P. balsamifera var. | CNPS-EB: C | black cottonwood |
| Actaea rubra | CNPS-EB: B-PV | baneberry |