| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Cryptantha hooveri | (historical-1908) | CNPS-EB: *A1x State CNPS: 1A Global Rank: GH CNDDB Rank: SH | Hoover's cryptantha |
| Plagiobothrys glaber | CNPS-EB: *A1 State CNPS: 1A Global Rank: GX CNDDB Rank: SX | hairless popcornflower |