| 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 |
| Cucurbita foetidissima | CNPS-EB: A1 | buffalo gourd, calabazilla, calabazilla | |
| Gilia capitata subsp. staminea | CNPS-EB: B-PV | blue field gilia | |
| Layia platyglossa | CNPS-EB: B-PV | tidy-tips | |
| Lepidium latipes | CNPS-EB: B-PV | dwarf peppergrass | |
| Phragmites australis | CNPS-EB: B-PV | common reed | |
| 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 | |
| Lepidium oxycarpum | CNPS-EB: A2 | sharp-podded pepper-grass | |
| Microseris elegans | CNPS-EB: A1 | elegant microseris | |
| Stipa pulchra | CNPS-EB: B-PV | purple needlegrass |