| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Centromadia parryi subsp. congdonii | (formerly Hemizonia p. ssp. c. | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G3T2 CNDDB Rank: S2 | Congdon's tarplant |
| Gutierrezia californica | CNPS-EB: B-PV | California matchweed | |
| Populus trichocarpa | (formerly P. balsamifera var. | CNPS-EB: C | black cottonwood |
| Artemisia dracunculus | CNPS-EB: A2 | tarragon | |
| Salix melanopsis | CNPS-EB: A1x | dusky willow | |
| Senecio flaccidus var. douglasii | CNPS-EB: A2 | Douglas' threadleaf ragwort, shrubby butterweed | |
| Stachys albens | CNPS-EB: B | white hedge nettle |