| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Amsinckia lunaris | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | bent-flowered fiddleneck | |
| Eryngium jepsonii | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | ||
| Fraxinus latifolia | CNPS-EB: B | Oregon ash | |
| Helianthella castanea | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Diablo helianthella | |
| Rumex transitorius | CNPS-EB: B | willow dock | |
| Setaria parviflora | CNPS-EB: B | knotroot bristle grass, perennial foxtail | |
| Viburnum ellipticum | CNPS-EB: *A2 State CNPS: 2B.3 Global Rank: G4G5 CNDDB Rank: S3 | oval-leaved viburnum | |
| Apiastrum angustifolium | CNPS-EB: C | wild celery | |
| Apocynum cannabinum | CNPS-EB: B | dogbane, Indian-hemp | |
| Carex subbracteata | CNPS-EB: B | small-bracted sedge | |
| Clarkia concinna subsp. concinna | CNPS-EB: C | large godetia | |
| Collinsia sparsiflora var. unknown | CNPS-EB: C? | few-flowered blue-eyed Mary | |
| Cyperus erythrorhizos | CNPS-EB: B | red-rooted cyperus | |
| Delphinium nudicaule | CNPS-EB: C | red larkspur, orange larkspur | |
| Epilobium ciliatum subsp. watsonii | (ssp. ciliatum is more common) | CNPS-EB: A1 | San Francisco willowherb |
| Erigeron philadelphicus var. philadelphicus | CNPS-EB: C | fleabane | |
| Festuca californica | CNPS-EB: B-PV | California fescue | |
| Helianthella californica var. californica | CNPS-EB: A2 | California helianthella | |
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Layia hieracioides | CNPS-EB: B-PV | tall layia | |
| Leptosiphon androsaceus | (formerly Linanthus a.) | CNPS-EB: C | common linanthus, common leptosiphon |
| Limnanthes douglasii subsp. douglasii | CNPS-EB: A1 | meadowfoam | |
| Pentachaeta alsinoides | CNPS-EB: B-PV | tiny pentachaeta | |
| Phoradendron leucarpum subsp. macrophyllum | (formerly P. serotinum subsp. macrophyllum, P. macrophyllum) | CNPS-EB: C | big leaf mistletoe |
| Populus trichocarpa | (formerly P. balsamifera var. | CNPS-EB: C | black cottonwood |
| Prunus subcordata | CNPS-EB: C | Pacific plum, Sierra plum | |
| Quercus lobata | CNPS-EB: C | valley oak, roble | |
| Ranunculus orthorhynchus var. bloomeri | CNPS-EB: A1x | Bloomer's buttercup | |
| Rhus aromatica | (formerly R. trilobata) | CNPS-EB: C | skunk bush, skunkbrush, squawbush |
| Rosa spithamea | CNPS-EB: C | coast ground rose, ground rose | |
| Scirpus microcarpus | CNPS-EB: C | small-fruited bulrush | |
| Senecio aronicoides | CNPS-EB: B-PV | rayless ragwort, California butterweed | |
| Stipa lepida | CNPS-EB: B-PV | foothill needlegrass | |
| Stipa pulchra | CNPS-EB: B-PV | purple needlegrass | |
| Trifolium dichotomum | CNPS-EB: C | branched indian clover | |
| Trifolium fucatum | CNPS-EB: B | bull clover |