| 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 |
| Allenrolfea occidentalis | CNPS-EB: C | iodine bush | |
| Alopecurus saccatus | CNPS-EB: B | Howell's meadow foxtail | |
| Amsinckia lycopsoides | CNPS-EB: C | bugloss-flowered fiddleneck, bugloss fiddleneck | |
| Anemopsis californica | CNPS-EB: B | yerba mansa, lizard tail | |
| Arthrocnemum subterminale | CNPS-EB: A2 | Parish's glasswort | |
| Astragalus asymmetricus | CNPS-EB: C | San Joaquin locoweeed | |
| Atriplex coronata var. coronata | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G4T3 CNDDB Rank: S3 | crownscale | |
| Atriplex depressa | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | brittlescale | |
| Atriplex fruticulosa | CNPS-EB: B | ballscale, little oak orach, ball saltbush | |
| Atriplex minuscula | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G2 CNDDB Rank: S2 | LESSER SALTSCALE | |
| Blennosperma nanum var. nanum | CNPS-EB: C | blennosperma | |
| Bolboschoenus maritimus subsp. paludosus | (formerly Scirpus m.) | CNPS-EB: C | bulrush |
| Brodiaea terrestris subsp. terrestris | CNPS-EB: B | dwarf brodiaea | |
| California macrophylla | (formerly Erodium macrophyllum | CNPS-EB: B | round-leaved filaree |
| Clarkia gracilis subsp. gracilis | CNPS-EB: C | summer's darling | |
| Collinsia sparsiflora var. sparsiflora | CNPS-EB: C | few-flowered blue-eyed Mary | |
| Crassula aquatica | CNPS-EB: B | water pygmy-weed | |
| Deinandra lobbii | (formerly Hemizonia l.) | CNPS-EB: C | three-rayed tarweed |
| Deschampsia cespitosa subsp. cespitosa | CNPS-EB: C | tufted hairgrass | |
| Downingia pulchella | CNPS-EB: B | flat-faced downingia | |
| Elymus elymoides var. elymoides | CNPS-EB: B | squirreltail | |
| Extriplex joaquinana | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | San Joaquin spearscale, San Joaquin saltbush | |
| Fritillaria agrestis | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | stinkbells | |
| Gilia tricolor subsp. diffusa | CNPS-EB: B | birds-eye gilia | |
| Gutierrezia californica | CNPS-EB: C | California matchweed | |
| Hesperevax caulescens | (H. sparsiflora is more common | CNPS-EB: *A2 State CNPS: 4.2 Global Rank: G3 CNDDB Rank: S3 | hogwallow starfish |
| Heterotheca sessiliflora subsp. bolanderi | (H. s. ssp. echioides is more | CNPS-EB: C | Bolander goldenaster |
| Hibiscus lasiocarpos var. occidentalis | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T3 CNDDB Rank: S3 | rose-mallow | |
| Holocarpha obconica | CNPS-EB: B | San Joaquin tarplant | |
| Hordeum depressum | CNPS-EB: B | low barley, alkali barley | |
| Hordeum jubatum subsp. jubatum | CNPS-EB: A2 | foxtail barley, squirreltail barley | |
| Juncus mexicanus | CNPS-EB: C | Mexican rush | |
| Juncus phaeocephalus var. paniculatus | CNPS-EB: B | panicled rush, brown-headed rush | |
| Juncus phaeocephalus var. phaeocephalus | CNPS-EB: B | brownheaded rush | |
| Koeleria macrantha | CNPS-EB: C | june grass | |
| Lathyrus jepsonii var. californicus | CNPS-EB: B | buff pea | |
| Lepidium acutidens | CNPS-EB: C | sharp-toothed pepper-grass | |
| Lepidium dictyotum | CNPS-EB: B | alkali pepper-grass | |
| Lepidium oxycarpum | CNPS-EB: A2 | sharp-podded pepper-grass | |
| Leptosiphon parviflorus | (formerly Linanthus p.) | CNPS-EB: B | small-flowered linanthus, small-flowered leptosiphon |
| Marah oregana | CNPS-EB: C | coast man-root | |
| Melica californica | CNPS-EB: C | California melic | |
| Microseris douglasii subsp. tenella | (subsp douglasii is more common) | CNPS-EB: A2 | silver puffs |
| Montia fontana | CNPS-EB: C | water chickweed, blinks, water chickweed | |
| Myosurus minimus subsp. minimus | CNPS-EB: C | common mouse-tail | |
| Nemophila pedunculata | CNPS-EB: B | meadow nemophila | |
| Oenothera elata subsp. hookeri | CNPS-EB: B | evening-primrose | |
| Packera breweri | (formerly Senecio b.) | CNPS-EB: C | Brewer's ragwort, Brewer's butterweed |
| Phacelia ramosissima | CNPS-EB: B | branching phacelia | |
| Phoradendron leucarpum subsp. macrophyllum | (formerly P. serotinum subsp. macrophyllum, P. macrophyllum) | CNPS-EB: C | big leaf mistletoe |
| Plagiobothrys acanthocarpus | CNPS-EB: B | adobe popcornflower, adobe allocarya | |
| Plagiobothrys fulvus var. campestris | CNPS-EB: B | field popcornflower, fulvous popcornflower | |
| Plagiobothrys humistratus | CNPS-EB: A2 | low popcornflower, dwarf allocarya | |
| Plantago elongata | CNPS-EB: B | annual coast plantain | |
| Pleuropogon californicus var. californicus | CNPS-EB: B | semaphore grass | |
| Prunus subcordata | CNPS-EB: C | Pacific plum, Sierra plum | |
| Psilocarphus chilensis | (formerly P. tenellus var. glo | CNPS-EB: A1 | round woolly marbles, round woolly-marbles |
| Puccinellia nuttalliana | CNPS-EB: A1 | Nuttall's alkali grass | |
| Puccinellia simplex | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G2 CNDDB Rank: S2 | little alkali grass | |
| Quercus lobata | CNPS-EB: B | valley oak, roble | |
| Ranunculus canus var. canus | CNPS-EB: C | Sacramento Valley buttercup | |
| Rumex transitorius | CNPS-EB: B | willow dock | |
| Sesuvium verrucosum | CNPS-EB: B | western sea-purslane, sea-purslane | |
| Spergularia macrotheca var. leucantha | CNPS-EB: A2 | large-flowered sand spurry | |
| Spergularia macrotheca var. longistyla | CNPS-EB: *A2 State CNPS: 1B.2 Global Rank: G5T2 CNDDB Rank: S2 | large-flowered sand spurry | |
| Sporobolus airoides | CNPS-EB: A1 | alkali sacaton | |
| Stachys albens | CNPS-EB: B | white hedge nettle | |
| Stellaria nitens | CNPS-EB: C | shining chickweed | |
| Stipa pulchra | CNPS-EB: C | purple needlegrass | |
| Tonella tenella | CNPS-EB: B | small-flowered tonella | |
| Trifolium depauperatum var. depauperatum | (vars. amplectens and truncatu | CNPS-EB: B | dwarf sack clover |
| Trifolium fucatum | CNPS-EB: C | bull clover | |
| Trifolium grayi | CNPS-EB: A1 | Gray's clover | |
| Trifolium oliganthum | CNPS-EB: C | few-flowered clover | |
| Triglochin maritima | CNPS-EB: C | common arrow-grass, seaside arrow-grass | |
| Triglochin scilloides | CNPS-EB: C | flowering-quillwort | |
| Tropidocarpum capparideum | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 | caper-fruited tropidocarpum | |
| Wyethia glabra | (W. helenioides is more common | CNPS-EB: C | mule ears |
| Allium crispum | CNPS-EB: A1 | crinkled onion | |
| Amsinckia eastwoodiae | CNPS-EB: A2 | Eastwood's fiddleneck | |
| Amsinckia tessellata var. tessellata | CNPS-EB: A1 | desert fiddleneck, devil's lettuce | |
| Aphyllon purpureum | CNPS-EB: C | naked broomrape | |
| Chloropyron palmatum | CNPS-EB: *A1 State CNPS: 1B.1 Global Rank: G1 CNDDB Rank: S1 FESA Status: FE CESA Status: CE | palmate salty bird's-beak, palmate-bracted bird's-beak | |
| Cirsium cymosum var. cymosum | CNPS-EB: C | peregrine thistle | |
| Cirsium occidentale var. coulteri | CNPS-EB: A1x | COULTER'S THISTLE | |
| Claytonia exigua subsp. exigua | CNPS-EB: C | common montia | |
| Collinsia bartsiifolia var. bartsiifolia | CNPS-EB: A1x | white Chinese houses | |
| Delphinium variegatum subsp. variegatum | CNPS-EB: C | royal larkspur | |
| Deschampsia danthonioides | CNPS-EB: C | annual hair grass | |
| Downingia cuspidata | CNPS-EB: A1 | cuspidate downingia | |
| Elymus multisetus | CNPS-EB: C | big squirreltail | |
| Elymus trachycaulus subsp. trachycaulus | CNPS-EB: A1 | slender wheat grass | |
| Ericameria arborescens | CNPS-EB: B | golden-fleece | |
| Eriogonum gracile var. gracile | CNPS-EB: C | slender woolly wild buckwheat, slender buckwheat | |
| Eryngium vaseyi var. vallicola | CNPS-EB: A1 | coyote-thistle, Vasey's coyote-thistle | |
| Fraxinus latifolia | CNPS-EB: B | Oregon ash | |
| Horkelia californica var. frondosa | CNPS-EB: B | leafy horkelia | |
| Lasthenia fremontii | CNPS-EB: A1 | Fremont's goldfields | |
| Lasthenia glaberrima | CNPS-EB: B | smooth goldfields | |
| Lasthenia glabrata subsp. glabrata | CNPS-EB: A2 | yellow-ray goldfields | |
| Lasthenia minor | CNPS-EB: A1 | coastal goldfields, woolly goldfields | |
| Lasthenia platycarpha | CNPS-EB: A1 | alkali goldfields | |
| Layia chrysanthemoides | CNPS-EB: A2 | smooth layia | |
| Lepidium latipes | CNPS-EB: B | dwarf peppergrass | |
| Leptochloa fusca subsp. fascicularis | CNPS-EB: A1 | bearded sprangletop | |
| Lilaeopsis masonii | CNPS-EB: *A2 State CNPS: 1B.1 Global Rank: G2 CNDDB Rank: S2 CESA Status: CR | Mason's lilaeopsis | |
| Lithophragma parviflorum var. parviflorum | CNPS-EB: B | prairie star | |
| Lomatium caruifolium var. caruifolium | CNPS-EB: B | caraway-leaved lomatium | |
| Mentzelia affinis | CNPS-EB: B | hydra stick-leaf | |
| Microseris acuminata | CNPS-EB: A1 | Sierra Foothills microseris | |
| Microseris campestris | CNPS-EB: A1 | San Joaquin microseris | |
| Monolopia lanceolata | CNPS-EB: A1 | common hillside daisy, common monolopia | |
| Monolopia major | CNPS-EB: B | cupped monolopia | |
| Myosurus minimus subsp. apus | CNPS-EB: *A1 State CNPS: 3.1 Global Rank: G5T2Q CNDDB Rank: S2 | little mousetail | |
| Myosurus sessilis | CNPS-EB: A1 | sessile mouse-tail | |
| Nemophila parviflora var. parviflora | CNPS-EB: B | small-flowered nemophila | |
| Phacelia ciliata | CNPS-EB: B | Great Valley phacelia, Great Valley phacelia | |
| Phacelia tanacetifolia | CNPS-EB: B | tansy phacelia | |
| Phalaris angusta | (historical-1912) | CNPS-EB: A1x | narrow canary grass |
| Plagiobothrys canescens var. canescens | CNPS-EB: C | valley popcornflower | |
| Plagiobothrys leptocladus | CNPS-EB: A1 | alkali plagiobothrys | |
| Plagiobothrys stipitatus var. stipitatus | (var. micranthus is more commo | CNPS-EB: C | showy great valley popcornflower, stipitate allocarya |
| Plagiobothrys trachycarpus | CNPS-EB: C | rough-nutlet popcornflower, rough-fruited allocarya | |
| Psilocarphus oregonus | CNPS-EB: A2 | Oregon woollyheads, Oregon woolly-marbles | |
| Rhus aromatica | (formerly R. trilobata) | CNPS-EB: B | skunk bush, skunkbrush, squawbush |
| Rumex salicifolius var. unknown | CNPS-EB: A2? | willow dock | |
| Sabulina californica | (formerly Minuartia californica) | CNPS-EB: A1 | California sandwort |
| Selaginella bigelovii | CNPS-EB: B | spike-moss | |
| Spergularia macrotheca var. macrotheca | CNPS-EB: A2 | large-flowered sand spurry | |
| Stipa cernua | CNPS-EB: C | nodding needlegrass | |
| Stipa lepida | CNPS-EB: C | foothill needlegrass | |
| Suaeda nigra | (formerly S. moquinii) | CNPS-EB: B | bush seepweed |
| Trifolium barbigerum | CNPS-EB: A2 | bearded clover | |
| Trifolium flavulum | (Included within T. fucatum in | CNPS-EB: A1 | bull clover |
| Trifolium lilacinum | (Included within T. barbigerum | CNPS-EB: A1 | Gray's clover |
| Trifolium obtusiflorum | CNPS-EB: B | clammy clover, creek clover |