| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Acmispon junceus var. junceus | CNPS-EB: A1 | ||
| Adiantum aleuticum | (A. jordanii is more common) | CNPS-EB: A1 | five-finger fern |
| Amsinckia lunaris | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | bent-flowered fiddleneck | |
| Anisocarpus madioides | (formerly Madia m.) | CNPS-EB: B | woodland tarweed, woodland madia |
| Aralia californica | CNPS-EB: C | elk clover | |
| Arbutus menziesii | CNPS-EB: B | Pacific madrone | |
| Arctostaphylos crustacea subsp. crustacea | CNPS-EB: C | brittleleaf manzanita | |
| Arctostaphylos pallida | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 FESA Status: FT CESA Status: CE | pallid manzanita | |
| Arnica discoidea | CNPS-EB: B | rayless arnica | |
| Asarum caudatum | CNPS-EB: B | wild-ginger | |
| Calochortus umbellatus | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3? CNDDB Rank: S3? | Oakland star-tulip | |
| Carex nebrascensis | CNPS-EB: B | Nebraska sedge | |
| Castilleja wightii | CNPS-EB: B | Wight's indian paintbrush | |
| Chrysolepis chrysophylla var. minor | CNPS-EB: A2 | golden chinquapin | |
| Cirsium brevistylum | CNPS-EB: B | indian thistle | |
| Collomia heterophylla | CNPS-EB: A1 | variable-leaf collomia | |
| Cornus sericea subsp. sericea | CNPS-EB: C | American dogwood | |
| Cyperus erythrorhizos | CNPS-EB: B | red-rooted cyperus | |
| Dendromecon rigida | CNPS-EB: A2 | bush poppy | |
| Deschampsia cespitosa subsp. cespitosa | CNPS-EB: C | tufted hairgrass | |
| Dirca occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | western leatherwood | |
| Eleocharis acicularis var. acicularis | CNPS-EB: B | needle spike-rush | |
| Festuca californica | CNPS-EB: C | California fescue | |
| Festuca idahoensis | CNPS-EB: C | Idaho fescue, blue bunchgrass | |
| Galium triflorum | CNPS-EB: C | sweet-scented bedstraw | |
| Hieracium albiflorum | CNPS-EB: C | white hawkweed | |
| Kopsiopsis strobilacea | (formerly Boschniakia strobilacea) | CNPS-EB: A1 | California ground-cone |
| Leptosiphon androsaceus | (formerly Linanthus a.) | CNPS-EB: C | common linanthus, common leptosiphon |
| Marah oregana | CNPS-EB: C | coast man-root | |
| Petasites frigidus var. palmatus | CNPS-EB: A1 | western sweet coltsfoot, coltsfoot | |
| Pickeringia montana var. montana | CNPS-EB: C | chaparral pea | |
| Pinus attenuata | CNPS-EB: A1 | knobcone pine | |
| Piperia transversa | CNPS-EB: B | flat spurred piperia, transverse piperia | |
| Populus trichocarpa | (formerly P. balsamifera var. | CNPS-EB: C | black cottonwood |
| Prunus emarginata | CNPS-EB: C | bitter cherry | |
| Quercus garryana var. garryana | CNPS-EB: B | Oregon oak | |
| Quercus parvula var. shrevei | CNPS-EB: A1 | island scrub oak | |
| Quercus wislizeni var. frutescens | CNPS-EB: C | shrubby interior live oak | |
| Rhinotropis californica | (formerly Polygala californica) | CNPS-EB: A1 | California milkwort |
| Salix scouleriana | CNPS-EB: A2 | Scouler's willow | |
| Sequoia sempervirens | CNPS-EB: C | coast redwood | |
| Silene laciniata subsp. californica | (formerly Silene c.) | CNPS-EB: B | Indian pink, California pink, California Indian pink |
| Trillium ovatum subsp. ovatum | CNPS-EB: A2 | white trillium | |
| Vaccinium ovatum | CNPS-EB: C | California huckleberry | |
| Viola glabella | CNPS-EB: A2 | stream violet, smooth yellow violet | |
| Acmispon junceus var. biolettii | (historical-1945) | CNPS-EB: A1x | rush lotus |
| Anthoxanthum occidentale | (historical-198? but not seen | CNPS-EB: A1x | California sweet grass, vanilla grass |
| Arctostaphylos glandulosa subsp. glandulosa | CNPS-EB: B | Eastwood manzanita | |
| Arctostaphylos glandulosa subsp. mollis | CNPS-EB: A1x | ||
| Asclepias speciosa | (A. californica is more common | CNPS-EB: B | showy milkweed, milkweed |
| Calamagrostis koelerioides | 2 questionable ID sites. Needs field research | CNPS-EB: A1? | tufted pine grass |
| Calamagrostis rubescens | CNPS-EB: B | pine reed grass, pine grass | |
| Castilleja subinclusa subsp. franciscana | CNPS-EB: A1 | Franciscan indian paintbrush | |
| Claytonia gypsophiloides | CNPS-EB: B | coast range montia | |
| Clematis ligusticifolia | CNPS-EB: C | western virgin's bower, virgin's bower | |
| Corallorhiza striata | (C. maculata is more common) | CNPS-EB: A1x | striped coralroot |
| Cordylanthus pilosus subsp. pilosus | CNPS-EB: B | hairy bird's-beak | |
| Crocanthemum scoparium var. vulgare | (formerly Helianthemum scoparium var. vulgare) | CNPS-EB: B | peak rush-rose |
| Deschampsia cespitosa subsp. holciformis | CNPS-EB: B | tufted hairgrass | |
| Dicentra formosa | CNPS-EB: A2 | Pacific bleeding heart, bleeding heart | |
| Festuca octoflora | CNPS-EB: A2 | sixweeks grass, slender fescue | |
| Galium trifidum subsp. columbianum | CNPS-EB: A1 | trifid bedstraw | |
| Koeleria macrantha | CNPS-EB: C | june grass | |
| Lilium pardalinum subsp. pardalinum | CNPS-EB: A1 | leopard lily | |
| Malacothrix floccifera | CNPS-EB: C | woolly malacothrix | |
| Oxalis oregana | CNPS-EB: A1 | redwood sorrel | |
| Piperia elegans subsp. elegans | CNPS-EB: C | coast piperia, elegant piperia | |
| Poa howellii | CNPS-EB: A2 | Howell's bluegrass | |
| Prunus subcordata | CNPS-EB: C | Pacific plum, Sierra plum | |
| Quercus berberidifolia | CNPS-EB: C | scrub oak | |
| Sabulina californica | (formerly Minuartia californica) | CNPS-EB: A1 | California sandwort |
| Sanicula laciniata | CNPS-EB: A2 | coast sanicle | |
| Scirpus microcarpus | CNPS-EB: C | small-fruited bulrush | |
| Scutellaria tuberosa | CNPS-EB: C | Dannie's skullcap | |
| Stephanomeria elata | CNPS-EB: A2 | stephanomeria | |
| Tellima grandiflora | CNPS-EB: C | fringe cups |