| Scientific Name | Notes | Rarity Ranks | Common Name |
|---|---|---|---|
| Acanthomintha lanceolata | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | Santa Clara thornmint | |
| Acmispon strigosus | CNPS-EB: B | strigose trefoil | |
| Agoseris heterophylla var. cryptopleura | CNPS-EB: B | ||
| Agoseris heterophylla var. heterophylla | CNPS-EB: C | ||
| 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 |
| Allium crispum | CNPS-EB: A1 | crinkled onion | |
| Amaranthus californicus | CNPS-EB: B | Californian amaranth | |
| Amsinckia eastwoodiae | CNPS-EB: A2 | Eastwood's fiddleneck | |
| Amsinckia lycopsoides | CNPS-EB: C | bugloss-flowered fiddleneck, bugloss fiddleneck | |
| Amsinckia tessellata var. gloriosa | CNPS-EB: A1 | carrizo fiddleneck, tessellate fiddleneck | |
| Amsinckia tessellata var. tessellata | CNPS-EB: A1 | desert fiddleneck, devil's lettuce | |
| Amsinckia vernicosa | CNPS-EB: A1 | waxy fiddleneck, forked fiddleneck | |
| Ancistrocarphus filagineus | CNPS-EB: C | woolly fishhooks | |
| Androsace elongata subsp. acuta | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5?T3T4 CNDDB Rank: S3S4 | California androsace | |
| Aphyllon californicum subsp. jepsonii | CNPS-EB: A1 | Jepson broom-rape | |
| Aphyllon purpureum | CNPS-EB: C | naked broomrape | |
| Apiastrum angustifolium | CNPS-EB: C | wild celery | |
| Arctostaphylos glauca | CNPS-EB: C | big-berried manzanita | |
| Astragalus asymmetricus | CNPS-EB: C | San Joaquin locoweeed | |
| Astragalus didymocarpus var. didymocarpus | (A. gambelianus is more common | CNPS-EB: A1 | two-seeded milkvetch |
| Athysanus unilateralis | (formerly Heterodraba unilateralis) | CNPS-EB: A1 | heterodraba |
| Atriplex fruticulosa | CNPS-EB: B | ballscale, little oak orach, ball saltbush | |
| Blepharizonia laxa | (formerly B. plumosa ssp. visc | CNPS-EB: B | big tarplant |
| Blepharizonia plumosa | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G1G2 CNDDB Rank: S1S2 | big tarplant | |
| Brickellia californica | CNPS-EB: C | California brickellbush, California brickellia | |
| California macrophylla | (formerly Erodium macrophyllum | CNPS-EB: B | round-leaved filaree |
| Calochortus clavatus var. pallidus | CNPS-EB: A1 | club-haired mariposa-lily | |
| Camissonia contorta | CNPS-EB: C | contorted primrose | |
| Camissoniopsis hirtella | CNPS-EB: B | small primrose | |
| Campanula exigua | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | chaparral harebell | |
| Castilleja subinclusa subsp. subinclusa | CNPS-EB: A1 | long-leaved indian paintbrush | |
| Caulanthus flavescens | CNPS-EB: A2 | yellow-flowered thelypodium | |
| Chenopodium berlandieri var. unknown | Split into 2 varieties. Sites need to be surveyed to determine vars.. | CNPS-EB: A2? | pitseed goosefoot |
| Cirsium cymosum var. cymosum | CNPS-EB: C | peregrine thistle | |
| Clarkia breweri | CNPS-EB: *A1 State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | Brewer's clarkia | |
| Clarkia purpurea subsp. purpurea | (ssp. quadrivulnera is more co | CNPS-EB: A2 | purple clarkia |
| Clarkia tembloriensis subsp. tembloriensis | CNPS-EB: A1 | temblor clarkia | |
| Claytonia exigua subsp. exigua | CNPS-EB: C | common montia | |
| Collinsia sparsiflora var. sparsiflora | CNPS-EB: C | few-flowered blue-eyed Mary | |
| Crocidium multicaule | CNPS-EB: A1 | spring gold | |
| Deinandra kelloggii | (formerly Hemizonia k.) | CNPS-EB: A2 | Kellogg's tarweed |
| Deinandra lobbii | (formerly Hemizonia l.) | CNPS-EB: C | three-rayed tarweed |
| Delphinium californicum subsp. interius | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G3T3 CNDDB Rank: S3 | Hospital Canyon larkspur | |
| Delphinium gypsophilum | CNPS-EB: A1 | gypsum-loving larkspur | |
| Delphinium parryi subsp. parryi | CNPS-EB: A2 | Parry's larkspur | |
| Delphinium variegatum subsp. variegatum | CNPS-EB: C | royal larkspur | |
| Deschampsia danthonioides | CNPS-EB: C | annual hair grass | |
| Downingia insignis | CNPS-EB: A1 | cupped downingia | |
| Dudleya cymosa subsp. paniculata | CNPS-EB: C | spreading dudleya | |
| Elatine californica | CNPS-EB: A2 | waterwort | |
| Elymus multisetus | CNPS-EB: C | big squirreltail | |
| Epilobium campestre | CNPS-EB: B | smooth boisduvalia | |
| Epilobium cleistogamum | CNPS-EB: A1 | cleistogamous boisduvalia | |
| Eremalche exilis | CNPS-EB: A1 | WHITE MALLOW | |
| Eremalche parryi subsp. parryi | CNPS-EB: A1 | Parry's mallow | |
| Eremothera boothii subsp. decorticans | (formerly Camissonia boothii subsp. decorticans) | CNPS-EB: A1 | shredding evening-primrose |
| Eriastrum abramsii | CNPS-EB: A2 | Abram's eriastrum | |
| Eriastrum pluriflorum subsp. pluriflorum | CNPS-EB: A1 | many-flowered eriastrum | |
| Eriogonum angulosum | CNPS-EB: B | angle-stem wild buckwheat, angle-stemmed eriogonum | |
| Eriogonum fasciculatum var. foliolosum | CNPS-EB: A1 | leafy California buckwheat, California buckwheat | |
| Eriogonum fasciculatum var. polifolium | CNPS-EB: A2 | Mojave desert California buckwheat, California buckwheat | |
| Eriogonum gracile var. gracile | CNPS-EB: C | slender woolly wild buckwheat, slender buckwheat | |
| Eriogonum nudum var. pauciflorum | CNPS-EB: A1 | little-flower wild buckwheat | |
| Eriogonum roseum | CNPS-EB: A2 | wand wild buckwheat, virgate buckwheat | |
| Eriogonum wrightii var. trachygonum | CNPS-EB: C | rough-node bastard-sage, Wright's eriogonum | |
| Eriophyllum jepsonii | CNPS-EB: *A2 State CNPS: 4.3 Global Rank: G3 CNDDB Rank: S3 | Jepson's woolly sunflower | |
| Erythranthe nasuta | CNPS-EB: A2 | shy monkeyflower | |
| Eschscholzia rhombipetala | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 | diamond-petaled California poppy | |
| Euphorbia ocellata subsp. ocellata | CNPS-EB: B | valley spurge | |
| Euphorbia serpillifolia subsp. serpillifolia | CNPS-EB: C | thyme-leaved spurge | |
| Festuca idahoensis | CNPS-EB: C | Idaho fescue, blue bunchgrass | |
| Forestiera pubescens | CNPS-EB: B | desert olive | |
| Fritillaria agrestis | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | stinkbells | |
| Galium andrewsii subsp. gatense | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G5T3 CNDDB Rank: S3 | phlox-leaf serpentine bedstraw, serpentine bedstraw | |
| Galium porrigens var. tenue | (var. porrigens is more common | CNPS-EB: A1 | climbing bedstraw |
| Gilia capitata subsp. staminea | CNPS-EB: C | blue field gilia | |
| Gilia tricolor subsp. diffusa | CNPS-EB: B | birds-eye gilia | |
| Gilia tricolor subsp. tricolor | CNPS-EB: C | birds-eye gilia | |
| Gruvelia pusilla | (formerly Pectocarya pusilla) | CNPS-EB: B | little pectocarya |
| Gutierrezia californica | CNPS-EB: C | California matchweed | |
| Helianthus californicus | CNPS-EB: C | California sunflower | |
| Hesperevax caulescens | (H. sparsiflora is more common | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | hogwallow starfish |
| Hesperolinon breweri | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | Brewer's western flax | |
| Hesperolinon californicum | CNPS-EB: B | California dwarf flax | |
| Hesperolinon disjunctum | CNPS-EB: A1 | dwarf flax | |
| Holocarpha obconica | CNPS-EB: B | San Joaquin tarplant | |
| Holozonia filipes | CNPS-EB: A2 | whitecrown, holozonia | |
| Hordeum depressum | CNPS-EB: B | low barley, alkali barley | |
| Juncus mexicanus | CNPS-EB: C | Mexican rush | |
| Juniperus californica | CNPS-EB: C | California juniper | |
| Keckiella breviflora var. breviflora | CNPS-EB: A2 | gaping penstemon | |
| Koeleria macrantha | CNPS-EB: C | june grass | |
| Lasthenia microglossa | CNPS-EB: A2 | small-ray goldfields | |
| Lasthenia minor | CNPS-EB: A1 | coastal goldfields, woolly goldfields | |
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Lepidium dictyotum | CNPS-EB: B | alkali pepper-grass | |
| Leptosiphon androsaceus | (formerly Linanthus a.) | CNPS-EB: C | common linanthus, common leptosiphon |
| Leptosyne calliopsidea | (formerly Coreopsis c.) | CNPS-EB: A1 | leafy-stemmed coreopsis |
| Lithophragma parviflorum var. parviflorum | CNPS-EB: B | prairie star | |
| Lomatium caruifolium var. caruifolium | CNPS-EB: B | caraway-leaved lomatium | |
| Lupinus concinnus | CNPS-EB: A1 | Bajada lupine | |
| Malacothamnus fremontii | CNPS-EB: C | white-coat mallow | |
| Malacothrix coulteri | CNPS-EB: A1 | snake's-head | |
| Marah oregana | CNPS-EB: C | coast man-root | |
| Melica californica | CNPS-EB: C | California melic | |
| Mentzelia affinis | CNPS-EB: B | hydra stick-leaf | |
| Mentzelia lindleyi | CNPS-EB: B | Lindley's blazing star | |
| Mentzelia micrantha | CNPS-EB: A2 | small-flowered stick-leaf | |
| Micropus californicus var. subvestitus | (var. californicus is more common) | CNPS-EB: A2 | slender cottonweed |
| Microseris acuminata | CNPS-EB: A1 | Sierra Foothills microseris | |
| Microseris douglasii subsp. tenella | (subsp douglasii is more common) | CNPS-EB: A2 | silver puffs |
| Monolepis nuttalliana | CNPS-EB: A1 | Nuttall's poverty weed, poverty weed | |
| Monolopia lanceolata | CNPS-EB: A1 | common hillside daisy, common monolopia | |
| Monolopia major | CNPS-EB: B | cupped monolopia | |
| Montia fontana | CNPS-EB: C | water chickweed, blinks, water chickweed | |
| Muilla maritima | CNPS-EB: B | common muilla | |
| Navarretia mellita | CNPS-EB: C | honey-scented navarretia | |
| Navarretia pubescens | CNPS-EB: C | downy navarretia | |
| Nicotiana quadrivalvis | CNPS-EB: B | indian tobacco | |
| Nuttallanthus texanus | CNPS-EB: A2 | blue toadflax | |
| Packera breweri | (formerly Senecio b.) | CNPS-EB: C | Brewer's ragwort, Brewer's butterweed |
| Pectocarya penicillata | CNPS-EB: A2 | northern pectocarya, winged pectocarya | |
| Perideridia californica | CNPS-EB: C | California yampah | |
| Perideridia oregana | CNPS-EB: A2 | yampah | |
| Phacelia ciliata | CNPS-EB: B | Great Valley phacelia, Great Valley phacelia | |
| Phacelia douglasii | CNPS-EB: A1 | Douglas' phacelia | |
| Phacelia tanacetifolia | CNPS-EB: B | tansy phacelia | |
| Piperia michaelii | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | Michael's rein-orchid | |
| Plagiobothrys canescens var. canescens | CNPS-EB: C | valley popcornflower | |
| Plagiobothrys fulvus var. campestris | CNPS-EB: B | field popcornflower, fulvous popcornflower | |
| Plagiobothrys stipitatus var. stipitatus | (var. micranthus is more commo | CNPS-EB: C | showy great valley popcornflower, stipitate allocarya |
| Plagiobothrys tenellus | CNPS-EB: B | Pacific popcornflower, slender popcornflower | |
| Plagiobothrys trachycarpus | CNPS-EB: C | rough-nutlet popcornflower, rough-fruited allocarya | |
| Platanus racemosa | CNPS-EB: C | western sycamore, California sycamore | |
| Psilocarphus brevissimus var. brevissimus | CNPS-EB: B | dwarf woollyheads, dwarf woolly-marbles | |
| Quercus lobata | CNPS-EB: B | valley oak, roble | |
| Ranunculus canus var. canus | CNPS-EB: C | Sacramento Valley buttercup | |
| Ribes aureum var. gracillimum | CNPS-EB: A2 | golden currant | |
| Ribes malvaceum var. malvaceum | CNPS-EB: C | chaparral currant | |
| Ribes quercetorum | CNPS-EB: A2 | oakwoods gooseberry, oak gooseberry | |
| Rumex californicus | (formerly R. salicifolius var. dentatus) | CNPS-EB: C | willow dock |
| Sabulina californica | (formerly Minuartia californica) | CNPS-EB: A1 | California sandwort |
| Scutellaria tuberosa | CNPS-EB: C | Dannie's skullcap | |
| Senecio flaccidus var. douglasii | CNPS-EB: A2 | Douglas' threadleaf ragwort, shrubby butterweed | |
| Silene antirrhina | CNPS-EB: A1 | sleepy catchfly, snapdragon catchfly | |
| Stachys albens | CNPS-EB: B | white hedge nettle | |
| Stebbinsoseris heterocarpa | CNPS-EB: C | grassland silverpuffs, derived microseris | |
| Stellaria nitens | CNPS-EB: C | shining chickweed | |
| Stipa cernua | CNPS-EB: C | nodding needlegrass | |
| Stipa lepida | CNPS-EB: C | foothill needlegrass | |
| Stipa pulchra | CNPS-EB: C | purple needlegrass | |
| Stylocline gnaphaloides | CNPS-EB: B | everlasting neststraw, nest-straw | |
| Tetrapteron graciliflorum | CNPS-EB: C | hill sun cup | |
| Thysanocarpus laciniatus | CNPS-EB: B | lacepod | |
| Trifolium depauperatum var. depauperatum | (vars. amplectens and truncatu | CNPS-EB: B | dwarf sack clover |
| Trifolium oliganthum | CNPS-EB: C | few-flowered clover | |
| Triglochin scilloides | CNPS-EB: C | flowering-quillwort | |
| Tropidocarpum gracile | CNPS-EB: B | slender tropidocarpum | |
| Vicia hassei | CNPS-EB: A2 | slender vetch | |
| Allium peninsulare var. peninsulare | (historical-1954) | CNPS-EB: A1x | peninsular onion |
| Allophyllum divaricatum | CNPS-EB: C | straggling gilia | |
| Amaranthus blitoides | CNPS-EB: C | procumbent pigweed, prostrate amaranth | |
| Amsinckia douglasiana | (historical-1938) | CNPS-EB: *A1x State CNPS: 4.2 Global Rank: G4 CNDDB Rank: S4 | Douglas' fiddleneck |
| Amsinckia grandiflora | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 FESA Status: FE CESA Status: CE | large-flowered fiddleneck | |
| Atriplex coronata var. coronata | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4T3 CNDDB Rank: S3 | crownscale | |
| Atriplex serenana var. serenana | CNPS-EB: A1 | bractscale | |
| Bolboschoenus maritimus subsp. paludosus | (formerly Scirpus m.) | CNPS-EB: C | bulrush |
| Caulanthus lemmonii | (formerly C. coulteri var. l.) | CNPS-EB: *A1x State CNPS: 1B.2 Global Rank: G3 CNDDB Rank: S3 | Lemmon's jewelflower |
| Cercis occidentalis | CNPS-EB: A1x | western redbud | |
| Collinsia bartsiifolia var. bartsiifolia | CNPS-EB: A1x | white Chinese houses | |
| Cryptantha juniperensis | (formerly C. nevadensis var. rigida) | CNPS-EB: A1 | Nevada cryptantha |
| Cryptantha microstachys | CNPS-EB: A2 | Tejon cryptantha | |
| Delphinium hesperium subsp. hesperium | CNPS-EB: B | western larkspur | |
| Descurainia pinnata subsp. brachycarpa | CNPS-EB: A1x | tansy mustard | |
| Diplacus rattanii | (formerly Mimulus rattanii) | CNPS-EB: A2 | Rattan monkeyflower |
| Eastwoodia elegans | Unclear if it occurs here | CNPS-EB: A1? | yellow mock aster |
| Elymus elymoides var. elymoides | CNPS-EB: B | squirreltail | |
| Ephedra californica | 2 questionable ID sites. Needs field research | CNPS-EB: A1? | desert tea, Mormon tea |
| Ericameria nauseosa var. mohavensis | CNPS-EB: A2 | Mojave rabbitbrush, rubber rabbitbrush | |
| Eriogonum nudum var. pubiflorum | CNPS-EB: A1x | Fremont's wild buckwheat, naked-stemmed buckwheat | |
| Erythranthe latidens | (formerly Mimulus latidens) | CNPS-EB: A1 | broad-toothed monkeyflower |
| Hesperomecon linearis | (formerly Meconella l.) (hist | CNPS-EB: A1x | narrow-leaved meconella |
| Juncus oxymeris | CNPS-EB: A1 | pointed rush | |
| Layia platyglossa | CNPS-EB: B | tidy-tips | |
| Linanthus dichotomus subsp. meridianus | CNPS-EB: A1 | ||
| Mentzelia pectinata | (historical-1935) | CNPS-EB: A1x | San Joaquin blazing star |
| Microseris campestris | CNPS-EB: A1 | San Joaquin microseris | |
| Monardella breweri subsp. breweri | (historical-1868) | CNPS-EB: A1x | Brewer's monardella |
| Myriopteris intertexta | CNPS-EB: B | coastal lip fern | |
| Navarretia nigelliformis subsp. nigelliformis | CNPS-EB: *A2? State CNPS: 4.2 Global Rank: G4T3 CNDDB Rank: S3 | adobe navarretia | |
| Nemophila pedunculata | CNPS-EB: B | meadow nemophila | |
| Oenothera deltoides subsp. cognata | CNPS-EB: A2 | desert evening-primrose | |
| Panicum capillare | CNPS-EB: A2 | witch grass | |
| Parietaria hespera var. californica | CNPS-EB: A1 | California pellitory | |
| Phacelia egena | (historical-1956) | CNPS-EB: A1x | phacelia |
| Pseudognaphalium beneolens | (formerly Gnaphalium canescens | CNPS-EB: C | fragrant everlasting |
| Rumex salicifolius var. unknown | CNPS-EB: A2? | willow dock | |
| Salvia carduacea | (historical-1946) | CNPS-EB: A1x | thistle sage |
| Senecio aphanactis | CNPS-EB: *A1x State CNPS: 2B.2 Global Rank: G3 CNDDB Rank: S2 | chaparral ragwort, rayless ragwort | |
| Streptanthus glandulosus subsp. glandulosus | CNPS-EB: B | jewelflower | |
| Trifolium dichotomum | CNPS-EB: C | branched indian clover | |
| Trifolium olivaceum | CNPS-EB: C | olive clover | |
| Viola purpurea subsp. quercetorum | CNPS-EB: C | mountain violet |