| Scientific Name | Common Name | Local Rank | Range Limits |
|---|---|---|---|
| Acanthomintha lanceolata | Santa Clara thornmint | *A2 | N Limit W Limit |
| Allenrolfea occidentalis | iodine bush | B-PV | N Limit W Limit |
| Allium acuminatum | Hooker's onion | A1 | S Limit W Limit |
| Allium bolanderi var. bolanderi | Bolander's onion | A1 | S Limit |
| Allium crispum | crinkled onion | A1 | N Limit |
| Allium falcifolium | sickle-leaved onion | A2 | S Limit |
| Allium sharsmithiae | Sharsmith's onion | *A2 | N Limit |
| Amsinckia grandiflora | large-flowered fiddleneck | *A1 | S Limit W Limit |
| Amsinckia vernicosa | waxy fiddleneck, forked fiddleneck | A1 | N Limit |
| Arctostaphylos crustacea subsp. rosei | Rose's manzanita | A1 | N Limit |
| Arctostaphylos glauca | big-berried manzanita | C | N Limit |
| Arnica discoidea | rayless arnica | B | S Limit |
| Asarum caudatum | wild-ginger | B | E Limit |
| Asclepias cordifolia | purple milkweed | A1 | S Limit |
| Asclepias speciosa | showy milkweed, milkweed | B | S Limit |
| Astragalus asymmetricus | San Joaquin locoweeed | C | N Limit |
| Astragalus tener var. tener | alkali milkvetch | *A2 | W Limit |
| Atriplex argentea var. expansa | silverscale | B | W Limit |
| Atriplex depressa | brittlescale | *A2 | W Limit |
| Atriplex leucophylla | beach saltbush | B | E Limit |
| Atriplex minuscula | LESSER SALTSCALE | *A2 | W Limit |
| Balsamorhiza macrolepis | big-scale balsamroot | *A1 | S Limit |
| Blepharizonia laxa | big tarplant | B | N Limit W Limit |
| Blepharizonia plumosa | big tarplant | *A2 | N Limit W Limit |
| Calamagrostis rubescens | pine reed grass, pine grass | A2 | E Limit |
| Calochortus clavatus var. pallidus | club-haired mariposa-lily | A1 | N Limit |
| Calochortus invenustus | plain mariposa-lily | A1x | N Limit |
| Calycadenia multiglandulosa | sticky calycadenia | A2 | E Limit |
| Calystegia malacophylla subsp. pedicellata | woolly morning-glory | A2 | N Limit |
| Calystegia sepium subsp. limnophila | hedge bindweed | B | W Limit |
| Campanula exigua | chaparral harebell | *A2 | N Limit |
| Carex harfordii | Harford's sedge, Monterey sedge | B | E Limit |
| Carex leporina | hare sedge, oval sedge, mountain hare sedge | A1 | S Limit |
| Carex unilateralis | one-sided sedge | A1 | S Limit |
| Castilleja rubicundula subsp. lithospermoides | cream sacs | B | S Limit |
| Ceanothus leucodermis | chaparral whitethorn | A2 | N Limit |
| Centromadia parryi subsp. congdonii | Congdon's tarplant | *A2 | N Limit |
| Chaenactis glabriuscula var. megacephala | yellow pincushion | A1 | N Limit |
| Chloropyron molle subsp. hispidum | hispid salty bird's-beak, hispid bird's-beak | *A1 | W Limit |
| Chloropyron molle subsp. molle | soft salty bird's-beak, soft bird's-beak | *A2 | E Limit S Limit |
| Chloropyron palmatum | palmate salty bird's-beak, palmate-bracted bird's-beak | *A1 | W Limit |
| Cirsium douglasii var. douglasii | swamp thistle | A1 | S Limit |
| Clarkia biloba subsp. biloba | lobed godetia | A2 | W Limit |
| Clarkia breweri | Brewer's clarkia | *A1 | N Limit |
| Clarkia concinna subsp. automixa | Santa Clara red ribbons | *A2 | N Limit |
| Clarkia franciscana | Presidio clarkia | *A1 | W Limit |
| Clarkia tembloriensis subsp. tembloriensis | temblor clarkia | A1 | N Limit W Limit |
| Collinsia bartsiifolia var. stricta | white Chinese houses | A1? | N Limit |
| Cordylanthus rigidus subsp. rigidus | stiffly-branched bird's-beak | A2 | N Limit |
| Croton californicus | California croton | A2 | N Limit E Limit |
| Cryptantha juniperensis | Nevada cryptantha | A1 | N Limit |
| Cyperus odoratus | coarse cyperus | A1 | W Limit |
| Delphinium californicum subsp. interius | Hospital Canyon larkspur | *A2 | N Limit |
| Delphinium gypsophilum | gypsum-loving larkspur | A1 | N Limit |
| Delphinium hansenii subsp. hansenii | Hansen's larkspur | A2 | W Limit |
| Delphinium parryi subsp. parryi | Parry's larkspur | A2 | N Limit |
| Descurainia pinnata subsp. brachycarpa | tansy mustard | A1x | N Limit |
| Dirca occidentalis | western leatherwood | *A2 | E Limit |
| Draba cuneifolia | Sonora draba | A1 | N Limit |
| Dudleya cymosa subsp. cymosa | spreading dudleya | A1 | S Limit |
| Dudleya cymosa subsp. paniculata | spreading dudleya | B-PV | N Limit |
| Dudleya farinosa | bluff lettuce, powdery dudleya | A2 | E Limit |
| Ephedra californica | desert tea, Mormon tea | A1? | N Limit |
| Ephedra viridis | green ephedra | A1? | N Limit |
| Epilobium cleistogamum | cleistogamous boisduvalia | A1 | W Limit |
| Eragrostis hypnoides | A2 | S Limit | |
| Eremalche parryi subsp. parryi | Parry's mallow | A1 | W Limit |
| Eremothera boothii subsp. decorticans | shredding evening-primrose | A1 | N Limit W Limit |
| Eriastrum pluriflorum subsp. pluriflorum | many-flowered eriastrum | A1 | N Limit W Limit |
| Ericameria nauseosa var. mohavensis | Mojave rabbitbrush, rubber rabbitbrush | A2 | N Limit W Limit |
| Erigeron reductus var. angustatus | California rayless daisy | A1 | S Limit |
| Eriogonum angulosum | angle-stem wild buckwheat, angle-stemmed eriogonum | B | N Limit |
| Eriogonum covilleanum | Coville's wild buckwheat, Coville's eriogonum | A2 | N Limit |
| Eriogonum fasciculatum var. foliolosum | leafy California buckwheat, California buckwheat | A1 | N Limit |
| Eriogonum fasciculatum var. polifolium | Mojave desert California buckwheat, California buckwheat | A2 | N Limit |
| Eriogonum inerme var. inerme | unarmed buckwheat | A1 | N Limit |
| Eriophyllum jepsonii | Jepson's woolly sunflower | *A2 | N Limit |
| Eriophyllum staechadifolium | seaside woolly sunflower, lizard-tail | A2 | E Limit |
| Eryngium aristulatum var. hooveri | Hoover's button-celery | *A1 | N Limit |
| Eryngium articulatum | beethistle, coyote-thistle | A1 | S Limit |
| Eryngium jepsonii | *A2 | S Limit W Limit | |
| Eryngium racemosum | delta button-celery | *A1x | W Limit |
| Eryngium spinosepalum | *A2 | N Limit W Limit | |
| Eschscholzia rhombipetala | diamond-petaled California poppy | *A1 | N Limit W Limit |
| Forestiera pubescens | desert olive | B-PV | N Limit |
| Fritillaria falcata | talus fritillary | *A1 | N Limit |
| Glyceria leptostachya | narrow manna grass, Davy's mannagrass | A1 | S Limit |
| Helianthella californica var. californica | California helianthella | A2 | S Limit |
| Helianthus gracilentus | slender sunflower | B | N Limit E Limit |
| Hemizonia congesta subsp. lutescens | hayfield tarweed | B | S Limit |
| Hesperocyparis sargentii | Sargent cypress | A1 | E Limit |
| Hesperolinon clevelandii | Cleveland's dwarf flax | A2 | S Limit |
| Heterotheca oregona var. scaberrima | Oregon goldenaster | A1 | N Limit |
| Heterotheca sessiliflora subsp. bolanderi | Bolander goldenaster | C | E Limit |
| Holocarpha macradenia | Santa Cruz tarplant | *A1 | N Limit |
| Holocarpha obconica | San Joaquin tarplant | B | W Limit |
| Horkelia californica var. frondosa | leafy horkelia | B | N Limit |
| Juncus ensifolius | dagger rush, swordleaved rush, three-stamened rush | A1? | S Limit |
| Juncus phaeocephalus var. phaeocephalus | brownheaded rush | B | E Limit |
| Keckiella breviflora var. breviflora | gaping penstemon | A2 | N Limit |
| Lasthenia conjugens | Contra Costa goldfields | *A2 | E Limit |
| Lasthenia ferrisiae | Ferris' goldfields | *A1 | W Limit |
| Lasthenia glaberrima | smooth goldfields | B | S Limit |
| Lasthenia microglossa | small-ray goldfields | A2 | N Limit |
| Lasthenia platycarpha | alkali goldfields | A1 | W Limit |
| Lathyrus jepsonii var. jepsonii | delta tule pea, Delta tule pea | *A2 | W Limit |
| Layia hieracioides | tall layia | B-PV | N Limit |
| Leptosiphon ambiguus | serpentine leptosiphon, serpentine linanthus | *A2 | N Limit |
| Leptosyne calliopsidea | leafy-stemmed coreopsis | A1 | N Limit W Limit |
| Leptosyne hamiltonii | Mount Hamilton coreopsis | *A1 | N Limit |
| Lessingia pectinata var. tenuipes | valley lessingia | A2 | N Limit |
| Lessingia tenuis | spring lessingia | *A2 | N Limit |
| Lilaeopsis masonii | Mason's lilaeopsis | *A2 | W Limit |
| Lomatium caruifolium var. caruifolium | caraway-leaved lomatium | B | E Limit |
| Lupinus arboreus | yellow bush lupine | A2 | E Limit |
| Lupinus concinnus | Bajada lupine | A1 | W Limit |
| Madia anomala | plump-seeded madia | A1x | S Limit |
| Madia radiata | showy golden madia, showy madia | *A1x | N Limit |
| Malacothrix coulteri | snake's-head | A1 | N Limit W Limit |
| Meconella oregana | Oregon meconella | *A2 | N Limit |
| Mentzelia affinis | hydra stick-leaf | B | N Limit W Limit |
| Microseris acuminata | Sierra Foothills microseris | A1 | S Limit W Limit |
| Microseris campestris | San Joaquin microseris | A1 | W Limit |
| Microseris sylvatica | sylvan microseris | *A2 | W Limit |
| Mirabilis laevis var. crassifolia | wishbone bush, California four o'clock | A1 | N Limit W Limit |
| Monolepis nuttalliana | Nuttall's poverty weed, poverty weed | A1 | W Limit |
| Monolopia gracilens | woodland woollythreads, woodland monolopia | *A2 | N Limit |
| Monolopia lanceolata | common hillside daisy, common monolopia | A1 | N Limit W Limit |
| Morella californica | wax myrtle | B | E Limit |
| Navarretia hamata subsp. parviloba | hooked navarretia | A1 | N Limit |
| Navarretia heterandra | Tehama navarretia | *A1 | S Limit |
| Navarretia nigelliformis subsp. nigelliformis | adobe navarretia | *A2? | N Limit |
| Navarretia nigelliformis subsp. radians | shining navarretia | *A1 | N Limit |
| Navarretia prostrata | prostrate vernal pool navarretia | *A1 | N Limit |
| Navarretia viscidula | sticky navarretia | A2 | S Limit |
| Oenothera deltoides subsp. cognata | desert evening-primrose | A1 | N Limit |
| Oenothera deltoides subsp. julpunensis | A1 | N Limit | |
| Osmorhiza brachypoda | California cicely | C | N Limit |
| Oxalis oregana | redwood sorrel | A1 | E Limit |
| Packera breweri | Brewer's ragwort, Brewer's butterweed | B-PV | N Limit W Limit |
| Papaver californicum | fire poppy | B | N Limit |
| Parietaria hespera var. californica | California pellitory | A1 | N Limit |
| Pediomelum californicum | indian breadroot | A2 | N Limit |
| Perideridia californica | California yampah | C | N Limit |
| Petunia parviflora | wild petunia | A1 | N Limit |
| Phacelia breweri | Brewer's phacelia | B-PV | N Limit W Limit |
| Phacelia douglasii | Douglas' phacelia | A1 | N Limit |
| Phacelia phacelioides | Mount Diablo phacelia | *A2 | N Limit W Limit |
| Pinus coulteri | Coulter pine | B-PV | N Limit |
| Plagiobothrys glaber | hairless popcornflower | *A1 | N Limit |
| Plagiobothrys trachycarpus | rough-nutlet popcornflower, rough-fruited allocarya | C | N Limit |
| Platanus racemosa | western sycamore, California sycamore | C | N Limit W Limit |
| Pleuropogon californicus var. californicus | semaphore grass | B-PV | S Limit |
| Polypodium scouleri | leather-leaf fern | A1 | E Limit |
| Potentilla anserina subsp. pacifica | Pacific silverweed | A2 | E Limit |
| Quercus palmeri | Palmer's oak | A2 | N Limit |
| Quercus parvula var. shrevei | island scrub oak | A1 | E Limit |
| Ranunculus lobbii | Lobb's aquatic buttercup | *A2 | E Limit |
| Ribes aureum var. gracillimum | golden currant | A2 | N Limit |
| Ribes quercetorum | oakwoods gooseberry, oak gooseberry | A2 | N Limit |
| Sanicula laciniata | coast sanicle | A2 | E Limit |
| Sanicula saxatilis | rock sanicle | *A2 | N Limit |
| Scutellaria californica | California skullcap | B | S Limit |
| Scutellaria siphocampyloides | gray-leaved skullcap | A2 | N Limit |
| Senecio aronicoides | rayless ragwort, California butterweed | B-PV | S Limit |
| Senecio hydrophilus | water ragwort, alkali-marsh ragwort, alkali-marsh butterweed | A2 | S Limit |
| Silene verecunda | San Francisco campion, Cuyamaca campion | A1 | N Limit |
| Sporobolus airoides | alkali sacaton | A1 | W Limit |
| Streptanthus breweri | Brewer's streptanthus | A1 | N Limit |
| Thysanocarpus laciniatus | lacepod | B | N Limit |
| Trifolium dichotomum | branched indian clover | C | S Limit |
| Trifolium macraei | Macrae's clover, double-headed clover | A1 | E Limit |
| Triglochin striata | three-ribbed arrow-grass | B | E Limit |
| Trillium ovatum subsp. ovatum | white trillium | A2 | E Limit S Limit |
| Tropidocarpum capparideum | caper-fruited tropidocarpum | *A1 | N Limit |
| Vaccinium ovatum | California huckleberry | B-PV | E Limit |
| Verbena hastata | blue vervain | A1 | W Limit |
| Viburnum ellipticum | oval-leaved viburnum | *A2 | S Limit W Limit |
| Viola sempervirens | evergreen violet, redwood violet | A2 | E Limit |