| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Carex barbarae | CNPS-EB: C | whiteroot sedge, Santa Barbara sedge, St. Barbara's sedge | |
| Castilleja applegatei subsp. martinii | CNPS-EB: A2 | wavy-leaved indian paintbrush | |
| Castilleja wightii | CNPS-EB: B | Wight's indian paintbrush | |
| Clarkia biloba subsp. biloba | CNPS-EB: A2 | lobed godetia | |
| Clarkia concinna subsp. concinna | CNPS-EB: C | large godetia | |
| Delphinium nudicaule | CNPS-EB: C | red larkspur, orange larkspur | |
| Poa howellii | CNPS-EB: A2 | Howell's bluegrass | |
| Cornus glabrata | CNPS-EB: A1 | brown dogwood | |
| Cornus sericea subsp. occidentalis | CNPS-EB: C | western dogwood | |
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Lathyrus jepsonii var. jepsonii | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | delta tule pea, Delta tule pea | |
| Micropus californicus var. subvestitus | (var. californicus is more common) | CNPS-EB: A2 | slender cottonweed |
| Trisetum canescens | CNPS-EB: A2 | tall trisetum |