| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Bidens frondosa | CNPS-EB: B | sticktight | |
| 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 |
| Cuscuta californica var. californica | CNPS-EB: A1 | California dodder | |
| Dudleya cymosa subsp. paniculata | CNPS-EB: B-PV | spreading dudleya | |
| Glycyrrhiza lepidota | CNPS-EB: C | wild licorice | |
| Platanus racemosa | CNPS-EB: C | western sycamore, California sycamore | |
| Quercus lobata | CNPS-EB: C | valley oak, roble | |
| Streptanthus albidus subsp. peramoenus | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T2 CNDDB Rank: S2 | most beautiful jewel-flower | |
| Castilleja wightii | CNPS-EB: B | Wight's indian paintbrush | |
| Chenopodium rubrum | CNPS-EB: A1 | red pigweed, red goosefoot | |
| Festuca octoflora | CNPS-EB: A2 | sixweeks grass, slender fescue | |
| Galium andrewsii subsp. gatense | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5T3 CNDDB Rank: S3 | phlox-leaf serpentine bedstraw, serpentine bedstraw | |
| Juncus oxymeris | CNPS-EB: A1 | pointed rush | |
| Layia chrysanthemoides | CNPS-EB: A2 | smooth layia | |
| Mentzelia lindleyi | CNPS-EB: B-PV | Lindley's blazing star | |
| Microseris douglasii subsp. tenella | (subsp douglasii is more common) | CNPS-EB: A2 | silver puffs |
| Myosurus minimus subsp. minimus | CNPS-EB: B-PV | common mouse-tail | |
| Petunia parviflora | CNPS-EB: A1 | wild petunia | |
| Phacelia ciliata | CNPS-EB: B | Great Valley phacelia, Great Valley phacelia | |
| Sabulina californica | (formerly Minuartia californica) | CNPS-EB: A1 | California sandwort |