Family: Adiantaceae
Cheilanthes cooperae view photos

Family: Aizoaceae
Sesuvium verrucosum (verrucose seapurslane) view photos

Family: Apiaceae
Lilaeopsis masonii (mudflat quillplant) view photos
Lomatium congdonii (Mariposa desertparsley) view photos
Lomatium engelmannii (Engelmann's desertparsley) view photos
Lomatium nevadense (Nevada biscuitroot) view photos
Lomatium vaginatum (broadsheath desertparsley) view photos
Pastinaca sativa (wild parsnip) view photos
Tauschia parishii (Parish's umbrellawort) view photos

Family: Asclepiadaceae
Asclepias solanoana (serpentine milkweed) view photos

Family: Asteraceae
Ageratina shastensis (Shasta snakeroot) view photos
Ambrosia salsola view photos
Antennaria flagellaris (whip pussytoes) view photos
Arnica venosa (Shasta County arnica) view photos
Balsamorhiza macrolepis (California balsamroot) view photos
Blepharizonia plumosa (big tarweed) view photos
Brickellia frutescens (shrubby brickellbush) view photos
Calendula arvensis (field marigold) view photos
Calycadenia truncata (Oregon western rosinweed) view photos
Dimeresia howellii (doublet) view photos
Ericameria parryi (Parry goldenbush) view photos
Erigeron clokeyi (Clokey's fleabane) view photos
Erigeron parishii (Parish's fleabane) view photos
Eriophyllum congdonii (Congdon's woolly sunflower) view photos
Harmonia nutans view photos
Hemizonia clementina (Catalina tarweed) view photos
Hesperevax sparsiflora (erect dwarf-cudweed) view photos
Heterotheca sessiliflora (sessileflower false goldenaster) view photos
Isocoma menziesii (Menzies' goldenbush) view photos
Lessingia tenuis (spring lessingia) view photos
Monolopia congdonii view photos
Pseudobahia peirsonii (San Joaquin adobe sunburst) view photos
Psilocarphus tenellus (slender woollyheads) view photos
Pyrrocoma racemosa (clustered goldenweed) view photos
Pyrrocoma uniflora (plantain goldenweed) view photos
Senecio blochmaniae (dune ragwort) view photos
Senecio clarkianus (Clark's ragwort) view photos
Senecio hydrophiloides (tall groundwel) view photos
Senecio pattersonensis (Patterson's senecio) view photos
Senecio sylvaticus (woodland ragwort) view photos
Sphaeromeria potentilloides (fivefinger chickensage) view photos
Trimorpha acris view photos

Family: Boraginaceae
Amsinckia vernicosa (green fiddleneck) view photos
Cryptantha crinita (Sacramento cryptantha) view photos
Cryptantha pterocarya (winged pick-me-not) view photos
Hackelia bella (greater showy stickseed) view photos
Myosotis laxa (bay forget-me-not) view photos
Plagiobothrys salsus (salty popcornflower) view photos
Plagiobothrys uncinatus (Salinas Valley popcornflower) view photos

Family: Brassicaceae
Arabis cobrensis (sagebrush rockcress) view photos
Cardamine nuttallii (Nuttall's toothwort) view photos
Cardamine pachystigma (serpentine bittercress) view photos
Caulanthus californicus view photos
Cusickiella quadricostata (Bodie Hills cusickiella) view photos
Draba sierrae (Sierra draba) view photos
Draba subumbellata (parasol draba) view photos
Lepidium dictyotum (alkali pepperweed) view photos
Lepidium jaredii (Jared's pepperweed) view photos
Rorippa columbiae (Columbian yellowcress) view photos
Streptanthus barbiger (bearded jewelflower) view photos
Streptanthus bernardinus (Laguna Mountain jewelflower) view photos
Streptanthus brachiatus (Socrates Mine jewelflower) view photos
Streptanthus callistus (Mt. Hamilton jewelflower) view photos
Streptanthus drepanoides (sicklefruit jewelflower) view photos
Streptanthus farnsworthianus (Farnsworth's jewelflower) view photos
Streptanthus fenestratus (Tehipite Valley jewelflower) view photos
Streptanthus glandulosus (bristly jewelflower) view photos
Streptanthus gracilis (alpine jewelflower) view photos
Streptanthus hesperidis (serpentine jewelflower) view photos
Streptanthus hispidus (Mt. Diablo jewelflower) view photos
Streptanthus insignis (plumed jewelflower) view photos
Streptanthus morrisonii (Morrison's jewelflower) view photos

Family: Campanulaceae
Downingia pusilla (dwarf calicoflower) view photos
Legenere limosa (false Venus' looking glass) view photos

Family: Capparaceae
Wislizenia refracta (spectacle fruit) view photos

Family: Caryophyllaceae
Paronychia ahartii (Ahart's nailwort) view photos
Silene invisa (red fir catchfly) view photos
Silene verecunda (San Francisco campion) view photos

Family: Chenopodiaceae
Atriplex depressa (brittlescale) view photos
Atriplex joaquiniana (San Joaquin saltbush) view photos

Family: Convolvulaceae
Calystegia collina (coast range false bindweed) view photos

Family: Crassulaceae
Sedum laxum (roseflower stonecrop) view photos

Family: Cyperaceae
Bulbostylis capillaris (threadleaf beakseed) view photos
Carex albida (white sedge) view photos
Carex angustata (widefruit sedge) view photos
Carex arcta (northern cluster sedge) view photos
Carex atherodes (slough sedge) view photos
Carex brevicaulis (shortstem sedge) view photos
Carex buxbaumii (Buxbaum's sedge) view photos
Carex comosa (longhair sedge) view photos
Carex concinnoides (northwestern sedge) view photos
Carex congdonii (Congdon's sedge) view photos
Carex densa (dense sedge) view photos
Carex disperma (softleaf sedge) view photos
Carex echinata (star sedge) view photos
Carex eleocharis view photos
Carex fissuricola (cleft sedge) view photos
Carex fracta (fragile sheath sedge) view photos
Carex garberi (elk sedge) view photos
Carex geyeri (elk sedge) view photos
Carex gigas (Siskiyou sedge) view photos
Carex globosa (roundfruit sedge) view photos
Carex gracilior (slender sedge) view photos
Carex gynodynama (Olney's hairy sedge) view photos
Carex halliana (Hall's sedge) view photos
Carex harfordii (Harford's sedge) view photos
Carex hassei (salt sedge) view photos
Carex hendersonii (Henderson's sedge) view photos
Carex heteroneura (different nerve sedge) view photos
Carex hirtissima (fuzzy sedge) view photos
Carex hoodii (Hood's sedge) view photos
Carex incurviformis (coastal sand sedge) view photos
Carex inops (long-stolon sedge) view photos
Carex lemmonii (Lemmon's sedge) view photos
Carex lenticularis (lakeshore sedge) view photos
Carex leporinella (Sierrahare sedge) view photos
Carex leptalea (bristlystalked sedge) view photos
Carex luzulina (woodrush sedge) view photos
Carex mariposana (Mariposa sedge) view photos
Carex mendocinensis (Mendocino sedge) view photos
Carex multicaulis (manystem sedge) view photos
Carex multicostata (manyrib sedge) view photos
Carex nebrascensis (Nebraska sedge) view photos
Carex neurophora (alpine nerve sedge) view photos
Carex nigricans (black alpine sedge) view photos
Carex nudata (naked sedge) view photos
Carex obispoensis (San Luis Obispo sedge) view photos
Carex obnupta (slough sedge) view photos
Carex praeceptorum view photos
Carex preslii (Presl's sedge) view photos
Carex proposita (Great Smoky Mountain sedge) view photos
Carex retroflexa (reflexed sedge) view photos
Carex saliniformis view photos
Carex sartwelliana (Yosemite sedge) view photos
Carex senta (swamp carex) view photos
Carex sheldonii (Sheldon's sedge) view photos
Carex simulata (analogue sedge) view photos
Carex spissa (San Diego sedge) view photos
Carex subbracteata (smallbract sedge) view photos
Carex tiogana (Tioga Pass sedge) view photos
Carex tompkinsii (Thompkins' sedge) view photos
Carex tumulicola (splitawn sedge) view photos
Carex vallicola (valley sedge) view photos
Carex vernacula (native sedge) view photos
Carex vesicaria (blister sedge) view photos

Family: Dryopteridaceae
Dryopteris filix-mas (male fern) view photos
Polystichum kruckebergii (Kruckeberg's hollyfern) view photos

Family: Elatinaceae
Elatine brachysperma (shortseed waterwort) view photos

Family: Ericaceae
Arctostaphylos glandulosa (Eastwood's manzanita) view photos
Arctostaphylos tomentosa (woollyleaf manzanita) view photos
Arctostaphylos virgata (Bolinas manzanita) view photos

Family: Euphorbiaceae
Croton wigginsii (Wiggins' croton) view photos

Family: Fabaceae
Astragalus albens (cushenbury milkvetch) view photos
Astragalus andersonii (Anderson's milkvetch) view photos
Astragalus canadensis (Canadian milkvetch) view photos
Astragalus clevelandii (Cleveland's milkvetch) view photos
Astragalus inversus (Susanville milkvetch) view photos
Astragalus lentiginosus (freckled milkvetch) view photos
Astragalus malacus (shaggy milkvetch) view photos
Astragalus oophorus (egg milkvetch) view photos
Astragalus panamintensis (Panamint milkvetch) view photos
Astragalus platytropis (broadkeel milkvetch) view photos
Lathyrus jepsonii (Delta tule pea) view photos
Lotus grandiflorus (chaparral bird's-foot trefoil) view photos
Lupinus arboreus (yellow bush lupine) view photos
Lupinus sericatus (Cobb Mountain lupine) view photos
Psoralidium lanceolatum (lemon scurfpea) view photos
Rupertia hallii (Hall's California tea) view photos
Trifolium polyodon view photos

Family: Fagaceae
Quercus dumosa (coastal sage scrub oak) view photos
Quercus parvula (coast oak) view photos

Family: Geraniaceae
Erodium macrophyllum (roundleaf stork's bill) view photos

Family: Grossulariaceae
Ribes lacustre (prickly currant) view photos
Ribes lobbii (gummy gooseberry) view photos
Ribes victoris (Victor's gooseberry) view photos

Family: Hydrophyllaceae
Phacelia grisea (Santa Lucia phacelia) view photos
Phacelia inyoensis (Inyo phacelia) view photos

Family: Juncaceae
Juncus leiospermus (Red Bluff dwarf rush) view photos

Family: Lamiaceae
Lycopus uniflorus (northern bugleweed) view photos
Monardella douglasii (Douglas' monardella) view photos
Monardella viridis (green monardella) view photos
Pogogyne douglasii (Douglas' mesamint) view photos

Family: Liliaceae
Allium abramsii (Abrams' allium) view photos
Allium peninsulare (Mexicali onion) view photos
Allium sanbornii (Sanborn's onion) view photos
Allium yosemitense (Yosemite onion) view photos
Erythronium pluriflorum (manyflower fawnlily) view photos
Trillium ovatum (Pacific trillium) view photos

Family: Limnanthaceae
Limnanthes floccosa (woolly meadowfoam) view photos

Family: Linaceae
Hesperolinon adenophyllum (glandular dwarf-flax) view photos
Hesperolinon breweri (Brewer's dwarf-flax) view photos
Hesperolinon tehamense (Paskenta Grade dwarf-flax) view photos

Family: Malvaceae
Eremalche parryi (Parry's mallow) view photos
Malacothamnus hallii view photos
Malacothamnus palmeri (Palmer's bushmallow) view photos
Sidalcea stipularis (Scadden Flat checkerbloom) view photos

Family: Molluginaceae
Glinus lotoides (lotus sweetjuice) view photos

Family: Onagraceae
Camissonia claviformis (browneyes) view photos
Camissonia parvula (Lewis River suncup) view photos
Clarkia breweri (fairy fans) view photos
Ludwigia palustris (marsh seedbox) view photos

Family: Orobanchaceae
Orobanche valida (Rock Creek broomrape) view photos

Family: Papaveraceae
Platystemon californicus (creamcups) view photos

Family: Pedaliaceae
Proboscidea lutea view photos

Family: Plantaginaceae
Plantago indica view photos

Family: Poaceae
Agrostis microphylla (small-leaf bentgrass) view photos
Calamagrostis ophitidis (serpentine reedgrass) view photos
Elymus californicus (California bottlebrush grass) view photos
Hesperostipa comata (Hesperostipa) view photos
Orcuttia tenuis (slender Orcutt grass) view photos
Poa pratensis (Kentucky bluegrass) view photos
Spartina gracilis (alkali cordgrass) view photos

Family: Polemoniaceae
Eriastrum hooveri (hoover's woolly-star) view photos
Gilia achilleifolia (California gilia) view photos
Gilia tenuiflora (greater yellow-throat gily-flower) view photos
Navarretia divaricata (divaricate navarretia) view photos
Navarretia heterandra (Tehama pincushionplant) view photos
Navarretia jaredii (mitrefruit pincushionplant) view photos
Navarretia subuligera (awl-leaf pincushionplant) view photos

Family: Polygonaceae
Eriogonum congdonii (Congdon's buckwheat) view photos
Eriogonum eastwoodianum (Eastwood's buckwheat) view photos
Eriogonum gossypinum (gypsum wild-buckwheat) view photos
Eriogonum heermannii (Heermann's buckwheat) view photos
Eriogonum luteolum (goldencarpet buckwheat) view photos
Eriogonum maculatum (spotted buckwheat) view photos
Eriogonum mensicola (crescent buckwheat) view photos
Eriogonum nudum (naked buckwheat) view photos
Eriogonum nummulare (money buckwheat) view photos
Eriogonum rixfordii (pagoda buckwheat) view photos
Eriogonum siskiyouense (Siskiyou buckwheat) view photos
Eriogonum strictum (Blue Mountain buckwheat) view photos
Eriogonum ternatum (ternate buckwheat) view photos
Eriogonum tripodum (tripod buckwheat) view photos
Eriogonum truncatum (Mt. Diablo buckwheat) view photos
Eriogonum umbellatum (sulfer flower buckwheat) view photos
Eriogonum vestitum (Idria buckwheat) view photos
Eriogonum wrightii (bastardsage) view photos
Goodmania luteola (yellow spinecape) view photos
Mucronea californica (California spineflower) view photos
Polygonum bidwelliae (Bidwell's knotweed) view photos
Polygonum parryi (Parry's knotweed) view photos

Family: Primulaceae
Androsace elongata (rockjasmine) view photos

Family: Rafflesiaceae
Pilostyles thurberi (Thurber's stemsucker) view photos

Family: Ranunculaceae
Anemone tuberosa (tuber anemone) view photos
Delphinium gypsophilum (Pinoche Creek larkspur) view photos
Delphinium hesperium (foothill larkspur) view photos
Delphinium parishii (desert larkspur) view photos
Delphinium recurvatum (Byron larkspur) view photos
Ranunculus testiculatus view photos

Family: Rhamnaceae
Ceanothus foliosus (wavyleaf ceanothus) view photos
Ceanothus tomentosus (woolyleaf ceanothus) view photos
Rhamnus alnifolia (alderleaf buckthorn) view photos

Family: Rosaceae
Horkelia yadonii (Santa Lucia horkelia) view photos
Ivesia baileyi (Bailey's ivesia) view photos
Ivesia kingii (ash meadows ivesia) view photos
Ivesia paniculata (Ash Creek mousetail) view photos
Potentilla basaltica (Soldier Meadows cinquefoil) view photos

Family: Rubiaceae
Crucianella angustifolia (narrowleaf crucianella) view photos
Galium ambiguum (Yolla Bolly bedstraw) view photos
Galium angustifolium (narrowleaf bedstraw) view photos
Galium boreale (northern bedstraw) view photos
Galium californicum (California bedstraw) view photos
Galium catalinense (Santa Catalina Island bedstraw) view photos
Galium clementis (Santa Lucia bedstraw) view photos
Galium cliftonsmithii (Santa Barbara bedstraw) view photos
Galium grande (San Gabriel bedstraw) view photos
Galium grayanum (Gray's bedstraw) view photos
Galium hardhamiae (Hardham's bedstraw) view photos
Galium hilendiae (Hilend's bedstraw) view photos
Galium hypotrichium (alpine bedstraw) view photos
Galium jepsonii (Jepson's bedstraw) view photos
Galium johnstonii (Johnston's bedstraw) view photos
Galium munzii (Munz's bedstraw) view photos
Galium muricatum (Humboldt bedstraw) view photos

Family: Saxifragaceae
Jepsonia heterandra (foothill jepsonia) view photos

Family: Scrophulariaceae
Antirrhinum virga view photos
Collinsia bartsiifolia (white blue eyed Mary) view photos
Gratiola heterosepala (Boggs Lake hedgehyssop) view photos
Limosella acaulis (Owyhee mudwort) view photos
Mimulus diffusus (Palomar monkeyflower) view photos
Penstemon personatus (closethroat beardtongue) view photos
Penstemon tracyi (Trinity penstemon) view photos

Family: Unspecified
Calyptridium quadripetalum view photos
Calyptridium umbellatum view photos
Chamomilla occidentalis view photos
Packera ionophylla view photos
Packera layneae view photos
Packera macounii view photos
Packera streptanthifolia view photos

Family: Urticaceae
Parietaria judaica (spreading pellitory) view photos

Family: Verbenaceae
Verbena californica (Red Hills vervain) view photos