| Acaena californica | (formerly A. pinnatifida var. californica) | C | California acaena |
| Acmispon strigosus | | C | strigose trefoil |
| Actaea rubra | | B-PV | baneberry |
| Agoseris heterophylla var. cryptopleura | | C | |
| Agoseris heterophylla var. heterophylla | | C | |
| Agoseris heterophylla var. unknown | Agoseris heterophylla split into 2 vars. in 2011 Jepson Manual, need field work to resolve vars. | B? | annual agoseris |
| Agoseris hirsuta | | B | |
| Agoseris retrorsa | | B-PV | spear-leaved agoseris |
| Agrostis hallii | | B | Hall's bent grass |
| Alisma triviale | (formerly A. plantago-aquatica | B-PV | water plantain |
| Allenrolfea occidentalis | | B-PV | iodine bush |
| Allium unifolium | | B-PV | one-leaved onion |
| Allophyllum divaricatum | | B-PV | straggling gilia |
| Allophyllum gilioides subsp. gilioides | | B | straggling gilia |
| Allophyllum gilioides subsp. violaceum | (ssp. gilioides is more common | B-PV | straggling gilia |
| Alopecurus saccatus | | B | Howell's meadow foxtail |
| Amaranthus blitoides | | C | procumbent pigweed, prostrate amaranth |
| Amaranthus californicus | | B | Californian amaranth |
| Ambrosia chamissonis | | C | beach bur-sage, beach-bur |
| Amelanchier utahensis | | C | Utah service-berry |
| Amsinckia retrorsa | | B? | rigid fiddleneck |
| Anemopsis californica | | B-PV | yerba mansa, lizard tail |
| Anisocarpus madioides | (formerly Madia m.) | C | woodland tarweed, woodland madia |
| Aphyllon tuberosum | | B-PV | bulbous broom-rape |
| Aphyllon vallicola | | B | California broom-rape |
| Apiastrum angustifolium | | C | wild celery |
| Apocynum cannabinum | | B-PV | dogbane, Indian-hemp |
| Aralia californica | | B-PV | elk clover |
| Arbutus menziesii | | B-PV | Pacific madrone |
| Arnica discoidea | | B-PV | rayless arnica |
| Asarum caudatum | | B | wild-ginger |
| Asclepias speciosa | (A. californica is more common | B | showy milkweed, milkweed |
| Atriplex argentea var. expansa | | C | silverscale |
| Atriplex fruticulosa | | B | ballscale, little oak orach, ball saltbush |
| Atriplex leucophylla | | B | beach saltbush |
| Balsamorhiza deltoidea | | B-PV | deltoid balsamroot |
| Berula erecta | | C | cutleaf water-parsnip |
| Bidens frondosa | | B | sticktight |
| Bidens laevis | | B | bur-marigold |
| Blepharizonia laxa | (formerly B. plumosa ssp. visc | B | big tarplant |
| Boechera breweri subsp. breweri | (formerly Arabis breweri) | B-PV | Brewer's rockcress |
| Bolboschoenus maritimus subsp. paludosus | (formerly Scirpus m.) | C | bulrush |
| Brodiaea terrestris subsp. terrestris | | B-PV | dwarf brodiaea |
| California macrophylla | (formerly Erodium macrophyllum | B-PV | round-leaved filaree |
| Calochortus splendens | | B-PV | splendid mariposa-lily |
| Calystegia malacophylla subsp. pedicellata | | B | woolly morning-glory |
| Calystegia sepium subsp. limnophila | | B-PV | hedge bindweed |
| Camissonia contorta | | B-PV | contorted primrose |
| Camissoniopsis hirtella | | B | small primrose |
| Camissoniopsis intermedia | | B-PV | small primrose |
| Camissoniopsis micrantha | | B-PV | small primrose |
| Carex barbarae | | C | whiteroot sedge, Santa Barbara sedge, St. Barbara's sedge |
| Carex densa | | B | dense sedge |
| Carex globosa | | B | round-fruited sedge |
| Carex harfordii | | B | Harford's sedge, Monterey sedge |
| Carex nebrascensis | | B | Nebraska sedge |
| Carex nudata | | C | torrent sedge |
| Carex obnupta | | B | slough sedge |
| Carex praegracilis | | B | black creeper sedge, freeway sedge, deer-bed sedge |
| Carex subbracteata | | B | small-bracted sedge |
| Castilleja rubicundula subsp. lithospermoides | | B-PV | cream sacs |
| Castilleja wightii | | B | Wight's indian paintbrush |
| Ceanothus leucodermis | | B | chaparral whitethorn |
| Ceanothus thyrsiflorus var. thyrsiflorus | | B | blue blossom, California lilac |
| Cicuta douglasii | | B | water-hemlock |
| Cirsium brevistylum | | B | indian thistle |
| Cirsium cymosum var. cymosum | | B-PV | peregrine thistle |
| Cirsium occidentale var. californicum | (var. venustum is more common) | B | California thistle |
| Clarkia concinna subsp. concinna | | C | large godetia |
| Clarkia gracilis subsp. gracilis | | C | summer's darling |
| Clarkia modesta | | B-PV | modest clarkia |
| Claytonia gypsophiloides | | B-PV | coast range montia |
| Clematis ligusticifolia | | C | western virgin's bower, virgin's bower |
| Collinsia parviflora | | B | blue-eyed Mary |
| Collinsia sparsiflora var. sparsiflora | | C | few-flowered blue-eyed Mary |
| Collinsia sparsiflora var. unknown | | C? | few-flowered blue-eyed Mary |
| Cordylanthus pilosus subsp. pilosus | | C | hairy bird's-beak |
| Corethrogyne filaginifolia | (formerly Lessingia f. var. f. | C | California aster |
| Cornus sericea subsp. occidentalis | | C | western dogwood |
| Cornus sericea subsp. sericea | | C | American dogwood |
| Cornus sericea subsp. unknown | | C? | American dogwood |
| Crassula aquatica | | B | water pygmy-weed |
| Crocanthemum scoparium var. vulgare | (formerly Helianthemum scoparium var. vulgare) | B | peak rush-rose |
| Cryptantha torreyana var. pumila | | B | Torrey's cryptantha |
| Cuscuta subinclusa | | C | canyon dodder |
| Cyperus erythrorhizos | | B | red-rooted cyperus |
| Cyperus niger | | B | black sedge |
| Danthonia californica | | B-PV | California oat grass |
| Deinandra kelloggii | (formerly Hemizonia k.) | B | Kellogg's tarweed |
| Deinandra lobbii | (formerly Hemizonia l.) | C | three-rayed tarweed |
| Delphinium californicum subsp. californicum | | B | coast larkspur, California larkspur |
| Delphinium hansenii subsp. hansenii | | B | Hansen's larkspur |
| Delphinium hesperium subsp. hesperium | | B | western larkspur |
| Deschampsia bolanderi | Formerly Scribneria bolanderi | B | Scribner's grass |
| Deschampsia cespitosa subsp. cespitosa | | B-PV | tufted hairgrass |
| Deschampsia cespitosa subsp. holciformis | | B | tufted hairgrass |
| Deschampsia danthonioides | | B-PV | annual hair grass |
| Deschampsia elongata | | B-PV | slender hair grass |
| Diplacus douglasii | (formerly Mimulus d.) | B | Douglas monkeyflower |
| Downingia pulchella | | B-PV | flat-faced downingia |
| Dudleya cymosa subsp. paniculata | | B-PV | spreading dudleya |
| Ehrendorferia chrysantha | (formerly Dicentra chrysantha) | B | golden ear-drops |
| Eleocharis acicularis var. acicularis | | B | needle spike-rush |
| Elymus elymoides var. elymoides | | B | squirreltail |
| Elymus multisetus | | B-PV | big squirreltail |
| Epilobium campestre | | C | smooth boisduvalia |
| Ericameria arborescens | | B-PV | golden-fleece |
| Ericameria nauseosa var. mohavensis | | B-PV | Mojave rabbitbrush, rubber rabbitbrush |
| Erigeron petrophilus var. petrophilus | | B | rock daisy |
| Erigeron philadelphicus var. philadelphicus | | C | fleabane |
| Eriogonum angulosum | | B | angle-stem wild buckwheat, angle-stemmed eriogonum |
| Eriogonum luteolum var. luteolum | | C | golden-carpet wild buckwheat, golden carpet |
| Eriogonum wrightii var. trachygonum | | C | rough-node bastard-sage, Wright's eriogonum |
| Eriophyllum lanatum var. achilleoides | | C | woolly sunflower |
| Erythranthe cardinalis | (formerly Mimulus c.) | B-PV | scarlet monkeyflower |
| Erythranthe nasuta | | C | shy monkeyflower |
| Euphorbia ocellata subsp. ocellata | | B | valley spurge |
| Euphorbia serpillifolia subsp. serpillifolia | | C | thyme-leaved spurge |
| Festuca californica | | B-PV | California fescue |
| Festuca idahoensis | | B-PV | Idaho fescue, blue bunchgrass |
| Festuca octoflora | | B-PV | sixweeks grass, slender fescue |
| Festuca rubra | | B-PV | red fescue |
| Forestiera pubescens | | B-PV | desert olive |
| Frangula californica subsp. tomentella | (formerly Rhamnus t.) | C | hoary coffeeberry |
| Fraxinus dipetala | | B | California ash, flowering ash |
| Fraxinus latifolia | | B | Oregon ash |
| Galium triflorum | | C | sweet-scented bedstraw |
| Garrya elliptica | | B-PV | silk tassel bush |
| Garrya flavescens | | B | silk tassel bush |
| Gilia capitata subsp. staminea | | B-PV | blue field gilia |
| Gilia tricolor subsp. diffusa | | C | birds-eye gilia |
| Gilia tricolor subsp. unknown | | B? | birds-eye gilia |
| Githopsis specularioides | | B-PV | common bluecup |
| Gruvelia pusilla | (formerly Pectocarya pusilla) | C | little pectocarya |
| Gutierrezia californica | | B-PV | California matchweed |
| Helenium bigelovii | (H. puberulum is more common) | B-PV | Bigelow's sneezeweed |
| Helianthella californica var. californica | | B | California helianthella |
| Helianthus californicus | | C | California sunflower |
| Helianthus gracilentus | | B | slender sunflower |
| Hemizonia congesta subsp. lutescens | | B | hayfield tarweed |
| Hesperolinon californicum | | B-PV | California dwarf flax |
| Heterotheca sessiliflora subsp. bolanderi | H. s. ssp. echioides is more common | C | Bolander goldenaster |
| Hieracium albiflorum | | B-PV | white hawkweed |
| Hoita macrostachya | | C | California hemp |
| Holocarpha obconica | | B | San Joaquin tarplant |
| Holozonia filipes | | B | whitecrown, holozonia |
| Hordeum depressum | | B-PV | low barley, alkali barley |
| Horkelia californica var. frondosa | | B-PV | leafy horkelia |
| Hydrocotyle ranunculoides | | B | floating marsh pennywort |
| Hydrocotyle verticillata | | B | whorled marsh pennywort |
| Iris douglasiana | | B | Douglas iris |
| Juncus mexicanus | | C | Mexican rush |
| Juncus phaeocephalus var. paniculatus | | B | panicled rush, brown-headed rush |
| Juncus phaeocephalus var. phaeocephalus | | C | brownheaded rush |
| Keckiella breviflora var. breviflora | | B-PV | gaping penstemon |
| Keckiella corymbosa | | B-PV | redwood penstemon |
| Koeleria macrantha | | B-PV | june grass |
| Lasthenia glaberrima | | B | smooth goldfields |
| Lasthenia microglossa | | B | small-ray goldfields |
| Lathyrus jepsonii var. californicus | | B | buff pea |
| Layia chrysanthemoides | | B | smooth layia |
| Layia gaillardioides | | B-PV | woodland layia |
| Layia hieracioides | | B-PV | tall layia |
| Layia platyglossa | | B-PV | tidy-tips |
| Lepechinia calycina | | C | pitcher sage |
| Lepidium acutidens | | C | sharp-toothed pepper-grass |
| Lepidium dictyotum | | B | alkali pepper-grass |
| Lepidium latipes | | B-PV | dwarf peppergrass |
| Leptosiphon ciliatus | (formerly Linanthus c.) | B-PV | whisker brush |
| Leptosiphon pygmaeus subsp. continentalis | (formerly Linanthus p. ssp. c. | B | pygmy linanthus, pygmy leptosiphon |
| Limonium californicum | | B-PV | western marsh-rosemary, sea-lavender, ma |
| Lithophragma parviflorum var. parviflorum | | B-PV | prairie star |
| Lomatium caruifolium var. caruifolium | | B-PV | caraway-leaved lomatium |
| Lupinus pachylobus | | B | big pod lupine |
| Lycopus americanus | | B | cutleaf bugleweed |
| Lythrum californicum | | B | California loosestrife |
| Malacothamnus fremontii var. fremontii | | B-PV | white-coat mallow |
| Marah oregana | | B-PV | coast man-root |
| Melica californica | | B-PV | California melic |
| Mentha canadensis | | B | American cornmint, Japanese peppermint |
| Mentzelia affinis | | B | hydra stick-leaf |
| Mentzelia lindleyi | | B-PV | Lindley's blazing star |
| Mimetanthe pilosa | (formerly Mimulus pilosus) | B | downy monkeyflower |
| Monardella douglasii | | B-PV | fenestra monardella, Fenestra monardella |
| Monolopia major | | B | cupped monolopia |
| Montia fontana | | B-PV | water chickweed, blinks, water chickweed |
| Morella californica | (formerly Myrica c.) | B | wax myrtle |
| Muilla maritima | | B-PV | common muilla |
| Myosurus minimus subsp. minimus | | B-PV | common mouse-tail |
| Myriopteris covillei | | B-PV | Coville's lip fern |
| Myriopteris intertexta | | B-PV | coastal lip fern |
| Nemophila parviflora var. parviflora | | B | small-flowered nemophila |
| Nemophila pedunculata | | B | meadow nemophila |
| Nicotiana quadrivalvis | | B | indian tobacco |
| Nuttallanthus texanus | | B | blue toadflax |
| Oenothera elata subsp. hookeri | | C | evening-primrose |
| Oxalis pilosa | (formerly O. albicans ssp. p.) | B | hairy wood-sorrel |
| Packera breweri | (formerly Senecio b.) | B-PV | Brewer's ragwort, Brewer's butterweed |
| Papaver californicum | | B | fire poppy |
| Pediomelum californicum | | B | indian breadroot |
| Penstemon centranthifolius | | B | scarlet bugler |
| Penstemon heterophyllus var. heterophyllus | | B-PV | chaparral penstemon |
| Pentachaeta alsinoides | | B-PV | tiny pentachaeta |
| Perideridia californica | | B-PV | California yampah |
| Persicaria hydropiperoides | (formerly Polygonum h.) | B | false waterpepper, water-pepper |
| Persicaria lapathifolia | (formerly Polygonum lapathifol | B | willow weed |
| Persicaria punctata | (formerly Polygonum punctatum) | C | water smartweed |
| Phacelia breweri | | B-PV | Brewer's phacelia |
| Phacelia ciliata | | B | Great Valley phacelia, Great Valley phacelia |
| Phacelia divaricata | | B-PV | divaricate phacelia |
| Phacelia rattanii | | B | Rattan's phacelia |
| Phacelia tanacetifolia | | B | tansy phacelia |
| Phragmites australis | | B-PV | common reed |
| Pickeringia montana var. montana | | B-PV | chaparral pea |
| Pinus coulteri | | B-PV | Coulter pine |
| Piperia elegans subsp. elegans | | B-PV | coast piperia, elegant piperia |
| Piperia elongata | | B-PV | chaparral orchid, wood rein-orchid, elongate piperia |
| Piperia transversa | | B | flat spurred piperia, transverse piperia |
| Plagiobothrys acanthocarpus | | B-PV | adobe popcornflower, adobe allocarya |
| Plagiobothrys canescens var. canescens | | C | valley popcornflower |
| Plagiobothrys fulvus var. campestris | | B | field popcornflower, fulvous popcornflower |
| Plagiobothrys stipitatus var. stipitatus | (var. micranthus is more commo | B | showy great valley popcornflower, stipitate allocarya |
| Plagiobothrys tenellus | | C | Pacific popcornflower, slender popcornflower |
| Plagiobothrys trachycarpus | | C | rough-nutlet popcornflower, rough-fruited allocarya |
| Plantago elongata | | B-PV | annual coast plantain |
| Platanus racemosa | | B-PV | western sycamore, California sycamore |
| Pleuropogon californicus var. californicus | | B-PV | semaphore grass |
| Pluchea odorata var. odorata | | B-PV | saltmarsh fleabane |
| Populus trichocarpa | (formerly P. balsamifera var. | C | black cottonwood |
| Prunella vulgaris var. lanceolata | (var. vulgaris is more common) | B | selfheal |
| Prunus emarginata | | C | bitter cherry |
| Prunus ilicifolia subsp. ilicifolia | | B | islay, holly-leafed cherry |
| Prunus subcordata | | C | Pacific plum, Sierra plum |
| Pseudognaphalium beneolens | (formerly Gnaphalium canescens | C | fragrant everlasting |
| Psilocarphus brevissimus var. brevissimus | | B | dwarf woollyheads, dwarf woolly-marbles |
| Psilocarphus oregonus | | B | Oregon woollyheads, Oregon woolly-marbles |
| Quercus agrifolia | | B-PV | coast live oak, encina |
| Quercus berberidifolia | | B | scrub oak |
| Quercus durata var. durata | | B | leather oak |
| Quercus garryana var. garryana | | B | Oregon oak |
| Quercus lobata | | B-PV | valley oak, roble |
| Quercus wislizeni var. frutescens | | B | shrubby interior live oak |
| Ranunculus canus var. canus | | C | Sacramento Valley buttercup |
| Ranunculus occidentalis var. occidentalis | | B | western buttercup |
| Rhamnus crocea | | B-PV | spiny redberry |
| Rhus aromatica | (formerly R. trilobata) | B-PV | skunk bush, skunkbrush, squawbush |
| Ribes divaricatum var. pubiflorum | | C | straggle bush, straggly gooseberry |
| Ribes quercetorum | | B | oakwoods gooseberry, oak gooseberry |
| Rorippa curvisiliqua | | B | yellow cress |
| Rorippa palustris subsp. palustris | | B | marsh yellow-cress |
| Rumex californicus | (formerly R. salicifolius var. dentatus) | B-PV | willow dock |
| Rumex salicifolius | (formerly R. salicifolius var. salicifolius) | B | willow dock |
| Sagina decumbens subsp. occidentalis | (S. apetala is more common) | B | western pearlwort |
| Salix gooddingii | | B | Goodding's black willow |
| Sambucus racemosa var. racemosa | | B | red elderberry |
| Scutellaria californica | | B | California skullcap |
| Sedum spathulifolium | | B | broadleaf stonecrop, Pacific stonecrop |
| Selaginella bigelovii | | C | spike-moss |
| Senecio aronicoides | | B-PV | rayless ragwort, California butterweed |
| Senecio flaccidus var. douglasii | | B-PV | Douglas' threadleaf ragwort, shrubby butterweed |
| Sequoia sempervirens | | B-PV | coast redwood |
| Sesuvium verrucosum | | B-PV | western sea-purslane, sea-purslane |
| Setaria parviflora | | B | knotroot bristle grass, perennial foxtail |
| Silene laciniata subsp. californica | (formerly Silene c.) | C | Indian pink, California pink, California Indian pink |
| Sporobolus foliosus | Formerly Spartina foliosa | B | California cord grass |
| Stachys albens | | B-PV | white hedge nettle |
| Stellaria nitens | | B-PV | shining chickweed |
| Stipa cernua | | B-PV | nodding needlegrass |
| Stipa lemmonii var. lemmonii | (formerly Achnatherum lemmonii) | B | Lemmon needlegrass |
| Stipa lepida | | B-PV | foothill needlegrass |
| Stipa pulchra | | B-PV | purple needlegrass |
| Streptanthus glandulosus subsp. glandulosus | | B-PV | jewelflower |
| Stylocline gnaphaloides | | B | everlasting neststraw, nest-straw |
| Suaeda nigra | (formerly S. moquinii) | B | bush seepweed |
| Symphyotrichum subulatum var. parviflorum | (formerly Aster subulatus var. | B-PV | slim aster |
| Tetrapteron graciliflorum | | B-PV | hill sun cup |
| Thysanocarpus laciniatus | | C | lacepod |
| Tonella tenella | | B-PV | small-flowered tonella |
| Trifolium barbigerum | | B | bearded clover |
| Trifolium columbinum | | C | olive clover |
| Trifolium depauperatum var. depauperatum | (vars. amplectens and truncatu | C | dwarf sack clover |
| Trifolium fucatum | | B-PV | bull clover |
| Trifolium obtusiflorum | | B-PV | clammy clover, creek clover |
| Triglochin scilloides | | C | flowering-quillwort |
| Triglochin striata | (T. maritima is more common) | B | three-ribbed arrow-grass |
| Trillium ovatum | | B | white trillium |
| Triphysaria versicolor subsp. faucibarbata | | B | smooth owl's-clover |
| Tropidocarpum gracile | | B-PV | slender tropidocarpum |
| Turritis glabra | | B | tower mustard |
| Vaccinium ovatum | | B-PV | California huckleberry |
| Vicia hassei | | B | slender vetch |
| Viola purpurea subsp. quercetorum | | C | mountain violet |
| Zeltnera davyi | (formerly Centaurium d.) | B-PV | Davy's centaury, conchalagua |