| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Agrostis hallii | CNPS-EB: A2 | Hall's bent grass | |
| Alopecurus saccatus | CNPS-EB: B | Howell's meadow foxtail | |
| Androsace elongata subsp. acuta | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5?T3T4 CNDDB Rank: S3S4 | California androsace | |
| Aphyllon purpureum | CNPS-EB: C | naked broomrape | |
| Aphyllon tuberosum | CNPS-EB: C | bulbous broom-rape | |
| Apocynum cannabinum | CNPS-EB: B | dogbane, Indian-hemp | |
| Aralia californica | CNPS-EB: C | elk clover | |
| Arbutus menziesii | CNPS-EB: B | Pacific madrone | |
| Arctostaphylos glauca | CNPS-EB: C | big-berried manzanita | |
| Astragalus asymmetricus | CNPS-EB: C | San Joaquin locoweeed | |
| Berula erecta | CNPS-EB: C | cutleaf water-parsnip | |
| Bidens frondosa | CNPS-EB: B | sticktight | |
| Brickellia californica | CNPS-EB: C | California brickellbush, California brickellia | |
| Carex barbarae | CNPS-EB: C | whiteroot sedge, Santa Barbara sedge, St. Barbara's sedge | |
| Carex nebrascensis | CNPS-EB: B | Nebraska sedge | |
| Carex nudata | CNPS-EB: B | torrent sedge | |
| Carex praegracilis | CNPS-EB: C | black creeper sedge, freeway sedge, deer-bed sedge | |
| Carex serratodens | CNPS-EB: C | saw-toothed sedge, bifid sedge | |
| Castilleja wightii | CNPS-EB: B | Wight's indian paintbrush | |
| Cirsium occidentale var. californicum | (var. venustum is more common) | CNPS-EB: A2 | California thistle |
| Clarkia gracilis subsp. gracilis | CNPS-EB: C | summer's darling | |
| Corethrogyne filaginifolia | (formerly Lessingia f. var. f. | CNPS-EB: C | California aster |
| Cornus sericea subsp. occidentalis | CNPS-EB: C | western dogwood | |
| Cornus sericea subsp. sericea | CNPS-EB: C | American dogwood | |
| Cuscuta californica var. californica | CNPS-EB: A2 | California dodder | |
| Cuscuta subinclusa | CNPS-EB: C | canyon dodder | |
| Datisca glomerata | CNPS-EB: C | durango root | |
| Deschampsia danthonioides | CNPS-EB: C | annual hair grass | |
| Deschampsia elongata | CNPS-EB: C | slender hair grass | |
| Eleocharis acicularis var. acicularis | CNPS-EB: B | needle spike-rush | |
| Elymus multisetus | CNPS-EB: C | big squirreltail | |
| Elymus xhansenii | CNPS-EB: B | Hansen squirreltail | |
| Erigeron philadelphicus var. philadelphicus | CNPS-EB: C | fleabane | |
| Eriogonum gracile var. gracile | CNPS-EB: C | slender woolly wild buckwheat, slender buckwheat | |
| Euphorbia serpillifolia subsp. serpillifolia | CNPS-EB: C | thyme-leaved spurge | |
| Glycyrrhiza lepidota | CNPS-EB: C | wild licorice | |
| Gutierrezia californica | CNPS-EB: C | California matchweed | |
| Helianthella californica var. californica | CNPS-EB: A2 | California helianthella | |
| Helianthus californicus | CNPS-EB: C | California sunflower | |
| Heterotheca sessiliflora subsp. bolanderi | (H. s. ssp. echioides is more | CNPS-EB: C | Bolander goldenaster |
| Hieracium albiflorum | CNPS-EB: C | white hawkweed | |
| Horkelia californica var. elata | CNPS-EB: A2 | tall horkelia | |
| Horkelia californica var. frondosa | CNPS-EB: B | leafy horkelia | |
| Isolepis cernua | (formerly Scirpus cernuus) | CNPS-EB: C | low club-rush |
| Juncus mexicanus | CNPS-EB: C | Mexican rush | |
| Juniperus californica | CNPS-EB: C | California juniper | |
| Koeleria macrantha | CNPS-EB: C | june grass | |
| Lasthenia glaberrima | CNPS-EB: B | smooth goldfields | |
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Lepechinia calycina | CNPS-EB: C | pitcher sage | |
| Leptosiphon androsaceus | (formerly Linanthus a.) | CNPS-EB: C | common linanthus, common leptosiphon |
| Leptosiphon parviflorus | (formerly Linanthus p.) | CNPS-EB: B | small-flowered linanthus, small-flowered leptosiphon |
| Lessingia nemaclada | CNPS-EB: A2 | slender-stemmed lessignia | |
| Malacothamnus fremontii var. fremontii | CNPS-EB: C | white-coat mallow | |
| Melica californica | CNPS-EB: C | California melic | |
| Mentha canadensis | CNPS-EB: B | American cornmint, Japanese peppermint | |
| Mentzelia lindleyi | CNPS-EB: B | Lindley's blazing star | |
| Monardella douglasii | CNPS-EB: A2 | fenestra monardella, Fenestra monardella | |
| Navarretia mellita | CNPS-EB: C | honey-scented navarretia | |
| Navarretia pubescens | CNPS-EB: C | downy navarretia | |
| Packera breweri | (formerly Senecio b.) | CNPS-EB: C | Brewer's ragwort, Brewer's butterweed |
| Panicum capillare | CNPS-EB: A2 | witch grass | |
| Perideridia californica | CNPS-EB: C | California yampah | |
| Persicaria punctata | (formerly Polygonum punctatum) | CNPS-EB: C | water smartweed |
| Phacelia malvifolia var. malvifolia | CNPS-EB: A2 | stinging phacelia | |
| Phacelia rattanii | CNPS-EB: B | Rattan's phacelia | |
| Pinus coulteri | CNPS-EB: B | Coulter pine | |
| Plagiobothrys canescens var. canescens | CNPS-EB: C | valley popcornflower | |
| Plagiobothrys stipitatus var. stipitatus | (var. micranthus is more commo | CNPS-EB: C | showy great valley popcornflower, stipitate allocarya |
| Platanus racemosa | CNPS-EB: C | western sycamore, California sycamore | |
| Poa howellii | CNPS-EB: A2 | Howell's bluegrass | |
| Populus trichocarpa | (formerly P. balsamifera var. | CNPS-EB: C | black cottonwood |
| Prunus ilicifolia subsp. ilicifolia | CNPS-EB: B | islay, holly-leafed cherry | |
| Prunus subcordata | CNPS-EB: C | Pacific plum, Sierra plum | |
| Quercus berberidifolia | CNPS-EB: C | scrub oak | |
| Quercus durata var. durata | CNPS-EB: B | leather oak | |
| Rigiopappus leptocladus | CNPS-EB: C | rigiopappus | |
| Rosa spithamea | CNPS-EB: C | coast ground rose, ground rose | |
| Rumex californicus | (formerly R. salicifolius var. dentatus) | CNPS-EB: C | willow dock |
| Salix gooddingii | CNPS-EB: B | Goodding's black willow | |
| Scirpus microcarpus | CNPS-EB: C | small-fruited bulrush | |
| Sedum radiatum subsp. radiatum | (formerly S. radiatum) | CNPS-EB: A2 | coast range stonecrop, star-fruited stonecrop |
| Selaginella bigelovii | CNPS-EB: B | spike-moss | |
| Senecio flaccidus var. douglasii | CNPS-EB: A2 | Douglas' threadleaf ragwort, shrubby butterweed | |
| Stipa lepida | CNPS-EB: C | foothill needlegrass | |
| Stipa pulchra | CNPS-EB: C | purple needlegrass | |
| Streptanthus albidus subsp. peramoenus | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2T2 CNDDB Rank: S2 | most beautiful jewel-flower | |
| Thysanocarpus laciniatus | CNPS-EB: B | lacepod | |
| Trifolium obtusiflorum | CNPS-EB: B | clammy clover, creek clover | |
| Triglochin scilloides | CNPS-EB: C | flowering-quillwort | |
| Triphysaria versicolor subsp. faucibarbata | CNPS-EB: B | smooth owl's-clover | |
| Wyethia glabra | (W. helenioides is more common | CNPS-EB: C | mule ears |
| Aquilegia eximia | (A. formosa is more common) | CNPS-EB: A2 | Van Houtte's columbine |
| Cercis occidentalis | CNPS-EB: A1x | western redbud | |
| Clematis ligusticifolia | CNPS-EB: C | western virgin's bower, virgin's bower | |
| Elymus trachycaulus subsp. trachycaulus | CNPS-EB: A1 | slender wheat grass | |
| Leptosiphon ambiguus | (formerly Linanthus a.) | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | serpentine leptosiphon, serpentine linanthus |
| Quercus lobata | CNPS-EB: B | valley oak, roble | |
| Quercus xchasei | CNPS-EB: B | Chase oak | |
| Ribes divaricatum var. pubiflorum | CNPS-EB: C | straggle bush, straggly gooseberry | |
| Trifolium oliganthum | CNPS-EB: C | few-flowered clover |