| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Agoseris heterophylla var. unknown | Agoseris heterophylla split into 2 vars. in 2011 Jepson Manual, need field work to resolve vars. | CNPS-EB: B? | annual agoseris |
| Alisma triviale | (formerly A. plantago-aquatica | CNPS-EB: C | water plantain |
| Amsinckia eastwoodiae | CNPS-EB: A2 | Eastwood's fiddleneck | |
| Arbutus menziesii | CNPS-EB: B | Pacific madrone | |
| Arctostaphylos glauca | CNPS-EB: C | big-berried manzanita | |
| Artemisia dracunculus | CNPS-EB: A2 | tarragon | |
| Berula erecta | CNPS-EB: C | cutleaf water-parsnip | |
| Bidens frondosa | CNPS-EB: B | sticktight | |
| Bolboschoenus maritimus subsp. paludosus | (formerly Scirpus m.) | CNPS-EB: C | bulrush |
| Brickellia californica | CNPS-EB: C | California brickellbush, California brickellia | |
| Carex senta | CNPS-EB: A1 | western rough sedge, rough sedge | |
| Castilleja wightii | CNPS-EB: B | Wight's indian paintbrush | |
| 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: A2 | California dodder | |
| Datisca glomerata | CNPS-EB: C | durango root | |
| Dudleya cymosa subsp. paniculata | CNPS-EB: C | spreading dudleya | |
| Eleocharis acicularis var. acicularis | CNPS-EB: B | needle spike-rush | |
| Eleocharis parishii | CNPS-EB: A1 | Dombey's spike-rush | |
| Equisetum laevigatum | CNPS-EB: A2 | smooth scouring rush | |
| Erigeron philadelphicus var. philadelphicus | CNPS-EB: C | fleabane | |
| Glycyrrhiza lepidota | CNPS-EB: C | wild licorice | |
| Gutierrezia californica | CNPS-EB: C | California matchweed | |
| Hoita macrostachya | CNPS-EB: B | California hemp | |
| Horkelia californica var. frondosa | CNPS-EB: B | leafy horkelia | |
| Hydrocotyle verticillata | CNPS-EB: B | whorled marsh pennywort | |
| Juncus phaeocephalus var. paniculatus | CNPS-EB: B | panicled rush, brown-headed rush | |
| Mentha canadensis | CNPS-EB: B | American cornmint, Japanese peppermint | |
| Mimetanthe pilosa | (formerly Mimulus pilosus) | CNPS-EB: B | downy monkeyflower |
| Mirabilis laevis var. crassifolia | (formerly M. californica) | CNPS-EB: A1 | wishbone bush, California four o'clock |
| Muilla maritima | CNPS-EB: B | common muilla | |
| Persicaria hydropiperoides | (formerly Polygonum h.) | CNPS-EB: A2 | false waterpepper, water-pepper |
| Persicaria punctata | (formerly Polygonum punctatum) | CNPS-EB: C | water smartweed |
| Plagiobothrys canescens var. canescens | CNPS-EB: C | valley popcornflower | |
| Platanus racemosa | CNPS-EB: C | western sycamore, California sycamore | |
| Populus trichocarpa | (formerly P. balsamifera var. | CNPS-EB: C | black cottonwood |
| Quercus lobata | CNPS-EB: B | valley oak, roble | |
| Ribes divaricatum var. pubiflorum | CNPS-EB: C | straggle bush, straggly gooseberry | |
| Ribes speciosum | CNPS-EB: A1 | fuchsia-flowered gooseberry | |
| Rumex californicus | (formerly R. salicifolius var. dentatus) | CNPS-EB: C | willow dock |
| Scirpus microcarpus | CNPS-EB: C | small-fruited bulrush | |
| Senecio aronicoides | CNPS-EB: C | rayless ragwort, California butterweed | |
| Stipa lepida | CNPS-EB: C | foothill needlegrass | |
| Streptanthus albidus subsp. peramoenus | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T2 CNDDB Rank: S2 | most beautiful jewel-flower | |
| Triphysaria versicolor subsp. faucibarbata | CNPS-EB: B | smooth owl's-clover | |
| Amelanchier utahensis | CNPS-EB: C | Utah service-berry | |
| Astragalus asymmetricus | CNPS-EB: C | San Joaquin locoweeed | |
| Chenopodium rubrum | CNPS-EB: A1 | red pigweed, red goosefoot | |
| Claytonia exigua subsp. exigua | CNPS-EB: C | common montia | |
| Delphinium californicum subsp. californicum | CNPS-EB: B | coast larkspur, California larkspur | |
| 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 | |
| Gilia tricolor subsp. tricolor | CNPS-EB: C | birds-eye gilia | |
| Gruvelia pusilla | (formerly Pectocarya pusilla) | CNPS-EB: B | little pectocarya |
| Juncus oxymeris | CNPS-EB: A1 | pointed rush | |
| Juniperus californica | CNPS-EB: C | California juniper | |
| Layia chrysanthemoides | CNPS-EB: A2 | smooth layia | |
| Mentzelia lindleyi | CNPS-EB: B | Lindley's blazing star | |
| Microseris douglasii subsp. tenella | (subsp douglasii is more common) | CNPS-EB: A2 | silver puffs |
| Myosurus minimus subsp. minimus | CNPS-EB: C | common mouse-tail | |
| Petunia parviflora | CNPS-EB: A1 | wild petunia | |
| Phacelia ciliata | CNPS-EB: B | Great Valley phacelia, Great Valley phacelia | |
| Plectritis congesta subsp. congesta | CNPS-EB: A1x | sea blush | |
| Ranunculus canus var. canus | CNPS-EB: C | Sacramento Valley buttercup | |
| Sabulina californica | (formerly Minuartia californica) | CNPS-EB: A1 | California sandwort |
| Salix melanopsis | CNPS-EB: A1x | dusky willow | |
| Senecio flaccidus var. douglasii | CNPS-EB: A2 | Douglas' threadleaf ragwort, shrubby butterweed | |
| Stachys albens | CNPS-EB: B | white hedge nettle | |
| Stellaria nitens | CNPS-EB: C | shining chickweed | |
| Turritis glabra | CNPS-EB: B | tower mustard |