Scientific Name
Family
Common Name
Thumbnails
Scientific Name | Family | Common Name | Thumbnails |
| Viguiera multiflora by the scientific world!"; | Asteraceae (Sunflower Family) | Nevada Goldeneye | |
| Abronia alpina | Nyctaginaceae (Four O'Clock Family) | Ramshaw Meadows Abronia | |
| Abronia turbinata | Nyctaginaceae (Four O'Clock Family) | Transmontane Sand Verbena | |
| Abronia villosa | Nyctaginaceae (Four O'Clock Family) | Desert Sand Verbena | |
| Acer glabrum | Aceraceae (Maple Family) | Mountain Maple | |
| Achillea millefolium | Asteraceae (Sunflower Family) | Yarrow | |
| Achyronychia cooperi | Caryophyllaceae (Pink Family) | Onyx Flower | |
| Acmispon grandiflorus | Fabaceae (Pea Family) | Large Leaved Lotus | |
| Acmispon nevadensis | Fabaceae (Pea Family) | Sierra Lotus | |
| Acmispon procumbens | Fabaceae (Pea Family) | Silky Deerweed | |
| Acmispon rigidus | Fabaceae (Pea Family) | Desert Deerweed | |
| Aconitum columbianum | Ranunculaceae (Buttercup Family) | Monkshood | |
| Actaea rubra | Ranunculaceae (Buttercup Family) | Baneberry | |
| Adiantum capillus-veneris | Pteridaceae (Brake Family) | Venus Hair Fern | |
| Agastache urticifolia | Lamiaceae (Mint Family) | Horsemint | |
| Ageratina occidentalis | Asteraceae (Sunflower Family) | Western Snakeroot | |
| Agoseris aurantiaca | Asteraceae (Sunflower Family) | Orange Agoseris | |
| Agoseris glauca | Asteraceae (Sunflower Family) | Mountain Dandelion | |
| Agoseris monticola | Asteraceae (Sunflower Family) | Mountain Agoseris | |
| Allenrolfea occidentalis | Chenopodiaceae (Goosefoot Family) | Pickleweed | |
| Allium atrorubens | Alliaceae (Onion Family) | Inyo Onion | |
| Allium bisceptrum | Alliaceae (Onion Family) | Aspen Onion | |
| Allium nevadense | Alliaceae (Onion Family) | Nevada Onion | |
| Allium validum | Liliaceae (Lily Family) | Swamp Onion | |
| Amaranthus blitoides | Amaranthaceae (Amaranth Family) | Amaranth | |
| Ambrosia dumosa | Asteraceae (Sunflower Family) | Burrobush | |
| Ambrosia salsola | Asteraceae (Sunflower Family) | Burrobrush | |
| Amphipappus fremontii | Asteraceae (Sunflower Family) | Fremont's Chaff Bush | |
| Amsinckia tessellata | Boraginaceae (Borage Family) | Devil's Lettuce | |
| Anemopsis californica | Saururaceae (Lizard's-Tail Family) | Yerba Mansa | |
| Angelica lineariloba | Apiaceae (Carrot Family) | Soda Straw | |
| Anisocoma acaulis | Asteraceae (Sunflower Family) | Scale Bud | |
| Antennaria rosea | Asteraceae (Sunflower Family) | Rosy Pussytoes | |
| Antirrhinum kingii | Scrophulariaceae (Figwort Family) | King's Snapdragon | |
| Anulocaulis annulatus | Nyctaginaceae (Four O'Clock Family) | Ringstem | |
| Aphyllon californicum | Orobanchaceae (Broomrape Family) | California Broomrape | |
| Apium graveolens | Apiaceae (Carrot Family) | Celery | |
| Aquilegia coerulea | Ranunculaceae (Buttercup Family) | Blue Columbine | |
| Aquilegia formosa | Ranunculaceae (Buttercup Family) | Red Columbine | |
| Aquilegia pubescens | Ranunculaceae (Buttercup Family) | Alpine Columbine | |
| Arabis inyoensis | Brassicaceae (Mustard Family) | Inyo Rock Cress | |
| Arabis pulchra | Brassicaceae (Mustard Family) | Rock Cress | |
| Arceuthobium campylopodum | Viscaceae (Mistletoe Family) | Mistletoe | |
| Arctomecon merriamii | Papaveraceae (Poppy Family) | Bear Poppy | |
| Arctostaphylos manzanita | Ericaceae (Heath Family) | Manzanita | |
| Argemone corymbosa | Papaveraceae (Poppy Family) | Prickly Poppy | |
| Argyrochosma jonesii | Pteridaceae (Brake Family) | Jones' False Cloak Fern | |
| Arnica mollis | Asteraceae (Sunflower Family) | Hairy Arnica | |
| Artemisia tridentata | Asteraceae (Sunflower Family) | Sagebrush | |
| Asclepias erosa | Asclepiadaceae (Milkweed Family) | Desert Milkweed | |
| Asclepias speciosa | Asclepiadaceae (Milkweed Family) | Showy Milkweed | |
| Asclepias vestita | Asclepiadaceae (Milkweed Family) | Woolly Milkweed | |
| Astragalus casei | Fabaceae (Pea Family) | Case Milkvetch | |
| Astragalus coccineus | Fabaceae (Pea Family) | Scarlet Milkvetch | |
| Astragalus didymocarpus | Fabaceae (Pea Family) | Two-Seeded Milkvetch | |
| Astragalus gilmanii | Fabaceae (Pea Family) | Gilman's Milkvetch | |
| Astragalus inyoensis | Fabaceae (Pea Family) | Inyo Milkvetch | |
| Astragalus layneae | Fabaceae (Pea Family) | Layne Milkvetch | |
| Astragalus lentiginosus | Fabaceae (Pea Family) | Freckled Milkvetch | |
| Astragalus newberryi | Fabaceae (Pea Family) | Newberry Milkvetch | |
| Atrichoseris platyphylla | Asteraceae (Sunflower Family) | Gravel-Ghost | |
| Atriplex canescens | Chenopodiaceae (Goosefoot Family) | Fourwing Saltbush | |
| Atriplex hymenelytra | Chenopodiaceae (Goosefoot Family) | Desert Holly Saltbush | |
| Atriplex lentiformis | Chenopodiaceae (Goosefoot Family) | Big Saltbush | |
| Atriplex phyllostegia | Chenopodiaceae (Goosefoot Family) | Arrowscale Saltbush | |
| Atriplex polycarpa | Chenopodiaceae (Goosefoot Family) | Cattle Spinach | |
| Baccharis salicifolia | Asteraceae (Sunflower Family) | Mule Fat | |
| Baileya multiradiata | Asteraceae (Sunflower Family) | Desert Marigold | |
| Balsamorhiza sagittata | Asteraceae (Sunflower Family) | Balsamroot | |
| Baptisia alba | Fabaceae (Pea Family) | White False Indigo | |
| Bistorta bistortoides | Polygonaceae (Buckwheat Family) | Dirty Socks | |
| Bistorta vivipara | Polygonaceae (Buckwheat Family) | Alpine Bistort | |
| Boechera pinetorum | Brassicaceae (Mustard Family) | Woodland Rockcress | |
| Brickellia atractyloides | Asteraceae (Sunflower Family) | Spearleaved Brickellia | |
| Brickellia californica | Asteraceae (Sunflower Family) | California Brickellia | |
| Brickellia desertorum | Asteraceae (Sunflower Family) | Desert Brickellia | |
| Brickellia longifolia | Asteraceae (Sunflower Family) | Willowleaf Brickellia | |
| Brickellia multiflora | Asteraceae (Sunflower Family) | Inyo Brickellia | |
| Brickellia oblongifolia | Asteraceae (Sunflower Family) | Pinyon Brickellia | |
| Brickellia watsonii | Asteraceae (Sunflower Family) | Sweet Brickellia | |
| Buddleja utahensis | Scrophulariaceae (Figwort Family) | Butterfly Bush | |
| Calochortus bruneaunis | Liliaceae (Lily Family) | Sego Lily | |
| Calochortus kennedyi | Liliaceae (Lily Family) | Desert Mariposa Lily | |
| Calochortus kennedyi munzii | Liliaceae (Lily Family) | Munz Mariposa | |
| Calycanthus floridus | Calycanthaceae (Sweetshrub Family) | Sweet Betsy | |
| Calycoseris parryi | Asteraceae (Sunflower Family) | Yellow Tackstem | |
| Calycoseris wrightii | Asteraceae (Sunflower Family) | White Tackstem | |
| Calyptridium monandrum | Portulacaceae (Purslane Family) | Common Pussypaws | |
| Calyptridium parryi | Portulacaceae (Purslane Family) | Nevada Pussypaws | |
| Calyptridium umbellatum | Montiaceae (Miner's Lettuce Family) | Mount Hood Pussypaws | |
| Calystegia longipes | Convolvulaceae (Morning Glory Family) | Piute Morning Glory | |
| Camissonia boothii | Onagraceae (Evening Primrose Family) | Bottle-Washer | |
| Camissonia campestris | Onagraceae (Evening Primrose Family) | Mojave Suncup | |
| Camissonia claviformis | Onagraceae (Evening Primrose Family) | Brown-Eyed Evening Primrose | |
| Camissonia pubens | Onagraceae (Evening Primrose Family) | Hairy Suncup | |
| Campanula rotundifolia | Campanulaceae (Bellflower Family) | Harebell | |
| Cassiope mertensiana | Ericaceae (Heath Family) | White Heather | |
| Castilleja angustifolia | Scrophulariaceae (Figwort Family) | Desert Paintbrush | |
| Castilleja applegatei | Scrophulariaceae (Figwort Family) | Applegates Paintbrush | |
| Castilleja exserta | Scrophulariaceae (Figwort Family) | Exserted Paintbrush | |
| Castilleja miniata | Orobanchaceae (Broomrape Family) | Scarlet Paintbrush | |
| Castilleja minor | Orobanchaceae (Broomrape Family) | Lesser Paintbrush | |
| Castilleja nana | Scrophulariaceae (Figwort Family) | Alpine Paintbrush | |
| Castilleja pilosa | Orobanchaceae (Broomrape Family) | Hairy Yellow Paintbrush | |
| Caulanthus crassicaulis | Brassicaceae (Mustard Family) | Thickstem Wild Cabbage | |
| Caulanthus pilosus | Brassicaceae (Mustard Family) | Hairy Wild Cabbage | |
| Ceanothus greggii | Rhamnaceae (Buckthorn Family) | Desert Ceanothus | |
| Ceanothus prostratus | Rhamnaceae (Buckthorn Family) | Pinemat | |
| Ceanothus vestitus | Rhamnaceae (Buckthorn Family) | Mojave Ceanothus | |
| Centaurea cyanus | Asteraceae (Sunflower Family) | Cornflower | |
| Centaurea melitensis | Asteraceae (Sunflower Family) | Tocalote | |
| Centranthus ruber | Valerianaceae (Valerian Family) | Red Valerian | |
| Centrostegia thurberi | Polygonaceae (Buckwheat Family) | Thurber's Spineflower | |
| Cercocarpus ledifolius | Rosaceae (Rose Family) | Mountain Mahogany | |
| Chaenactis douglasii | Asteraceae (Sunflower Family) | Dusty Pincushion | |
| Chaenactis fremontii | Asteraceae (Sunflower Family) | Desert Pincushion | |
| Chaenactis macrantha | Asteraceae (Sunflower Family) | Mojave Pincushion | |
| Chaenactis santolinoides | Asteraceae (Sunflower Family) | Santolina Pincushion | |
| Chaenactis stevioides | Asteraceae (Sunflower Family) | Esteve's Pincushion | |
| Chamaebatiaria millefolium | Rosaceae (Rose Family) | Fern Bush | |
| Chamaelirium luteum | Liliaceae (Lily Family) | Fairy Wand | |
| Chamaesyce albomarginata | Euphorbiaceae (Spurge Family) | Whitemargin Spurge | |
| Chamaesyce parishii | Euphorbiaceae (Spurge Family) | Parish's Sandmat | |
| Chamaesyce setiloba | Euphorbiaceae (Spurge Family) | Yuma Spurge | |
| Chamaesyce vallis-mortae | Euphorbiaceae (Spurge Family) | Death Valley Sandmat | |
| Cheilanthes parryi | Pteridaceae (Brake Family) | Cloak Fern | |
| Cheilanthes viscida | Pteridaceae (Brake Family) | Lip Fern | |
| Chenopodium californicum | Chenopodiaceae (Goosefoot Family) | Pigweed | |
| Chilopsis linearis | Bignoniaceae (Bignonia Family) | Desert Willow | |
| Chorizanthe brevicornu | Polygonaceae (Buckwheat Family) | Brittle Spineflower | |
| Chorizanthe rigida | Polygonaceae (Buckwheat Family) | Devil's Spineflower | |
| Chrysolepis sempervirens | Fagaceae (Oak Family) | Chinquapin | |
| Chrysothamnus spp. | Asteraceae (Sunflower Family) | Rabbitbrush | |
| Chylismia brevipes | Onagraceae (Evening Primrose Family) | Golden Suncup | |
| Chylismia cardiophylla | Onagraceae (Evening Primrose Family) | Heart-Leaved Suncup | |
| Cichorium intybus | Asteraceae (Sunflower Family) | Common Chicory | |
| Cirsium mohavense | Asteraceae (Sunflower Family) | Mojave Thistle | |
| Cirsium scariosum | Asteraceae (Sunflower Family) | Stemless Thistle | |
| Cistanthe ambigua | Portulacaceae (Purslane Family) | Desert Pussypaws | |
| Clarkia amoena | Onagraceae (Evening Primrose Family) | Farewell To Spring | |
| Clarkia rhomboidea | Onagraceae (Evening Primrose Family) | Diamond Clarkia | |
| Clarkia unguiculata | Onagraceae (Evening Primrose Family) | Woodland Clarkia | |
| Claytonia perfoliata | Montiaceae (Miner's Lettuce Family) | Miner's Lettuce | |
| Clematis ligusticifolia | Ranunculaceae (Buttercup Family) | Virgin's Bower | |
| Cleomella arborea | Cleomaceae (Cleome Family) | Bladderpod | |
| Cleomella obtusifolia | Cleomaceae (Cleome Family) | Mojave Stinkweed | |
| Coleogyne ramosissima | Rosaceae (Rose Family) | Blackbrush | |
| Collinsia callosa | Plantaginaceae (Plantain Family) | Desert Collinsia | |
| Collomia grandiflora | Polemoniaceae (Phlox Family) | Mountain Collomia | |
| Collomia heterophylla | Polemoniaceae (Phlox Family) | Variableleaf Collomia | |
| Collomia linearis | Polemoniaceae (Phlox Family) | Slenderleaf Collomia | |
| Convolvulus arvensis | Convolvulaceae (Morning Glory Family) | Bindweed | |
| Corallorhiza maculata | Orchidaceae (Orchid Family) | Spotted Coralroot | |
| Cordylanthus eremicus | Scrophulariaceae (Figwort Family) | Desert Bird's-Beak | |
| Cordylanthus rigidus | Orobanchaceae (Broomrape Family) | Rigid Bird's Beak | |
| Coreopsis tinctoria | Asteraceae (Sunflower Family) | Golden Tickseed | |
| Cornus sericea | Cornaceae (Dogwood Family) | Creek Dogwood | |
| Crepis occidentalis | Asteraceae (Sunflower Family) | Western Hawksbeard | |
| Cryptantha circumscissa | Boraginaceae (Borage Family) | Cushion Cryptantha | |
| Cryptantha confertiflora | Boraginaceae (Borage Family) | Yellow Cryptantha | |
| Cryptantha gracilis | Boraginaceae (Borage Family) | Granite Cryptantha | |
| Cryptantha humilis | Boraginaceae (Borage Family) | Low Cryptantha | |
| Cryptantha racemosa | Boraginaceae (Borage Family) | Bushy Cryptantha | |
| Cryptantha tumulosa | Boraginaceae (Borage Family) | Mojave Cryptantha | |
| Cryptantha utahensis | Boraginaceae (Borage Family) | Scented Cryptantha | |
| Cryptantha virginensis | Boraginaceae (Borage Family) | Virgin River Cryptantha | |
| Cucurbita palmata | Cucurbitaceae (Gourd Family) | Coyote Melon | |
| Cuniculotinus gramineus | Asteraceae (Sunflower Family) | Panamint Rock Goldenrod | |
| Cuscuta denticulata | Cuscutaceae (Dodder Family) | Dodder | |
| Cuscuta suksdorfii | Cuscutaceae (Dodder Family) | Mountain Dodder | |
| Cylindropuntia ramosissima | Cactaceae (Cactus Family) | Pencil Cholla | |
| Cymopterus panamintensis | Apiaceae (Carrot Family) | Panamint Parsley | |
| Cymopterus terebinthinus | Apiaceae (Carrot Family) | Aromatic Spring Parsley | |
| Cypripedium acaule | Orchidaceae (Orchid Family) | Pink Lady's Slipper | |
| Dasiphora fruticosa | Rosaceae (Rose Family) | Bush Cinquefoil | |
| Datisca glomerata | Datiscaceae (Datisca Family) | Durango Root | |
| Datura wrightii | Solanaceae (Nightshade Family) | Jimson Weed | |
| Delphinium parishii | Ranunculaceae (Buttercup Family) | Parish's Larkspur | |
| Delphinium polycladon | Ranunculaceae (Buttercup Family) | Mountain Marsh Larkspur | |
| Descurainia pinnata | Brassicaceae (Mustard Family) | Tansy Mustard | |
| Dicentra uniflora | Papaveraceae (Poppy Family) | Steer's Head | |
| Dichelostemma capitatum | Liliaceae (Lily Family) | Blue Dicks | |
| Dicoria canescens | Asteraceae (Sunflower Family) | Bugseed | |
| Dipsacus sativus | Dipsacaceae (Teasel Family) | Teasel | |
| Dithyrea californica | Brassicaceae (Mustard Family) | Spectacle-Pod | |
| Dodecatheon redolens | Primulaceae (Primrose Family) | Shooting Star | |
| Doellingeria breweri | Asteraceae (Sunflower Family) | Brewer's Aster | |
| Drymocallis glandulosa | Rosaceae (Rose Family) | Sticky Cinquefoil | |
| Dudleya abramsii | Crassulaceae (Stonecrop Family) | Limestone Dudleya | |
| Dudleya saxosa | Crassulaceae (Stonecrop Family) | Panamint Dudleya | |
| Echinacea purpurea | Asteraceae (Sunflower Family) | Purple Coneflower | |
| Echinocactus polycephalus | Cactaceae (Cactus Family) | Cotton-Top | |
| Echinocereus engelmannii | Cactaceae (Cactus Family) | Hedgehog Cactus | |
| Echinocereus triglochidiatus | Cactaceae (Cactus Family) | Mojave Mound Cactus | |
| Ehrendorferia chrysantha | Papaveraceae (Poppy Family) | Golden Eardrops | |
| Emmenanthe penduliflora | Boraginaceae (Borage Family) | Whispering Bells | |
| Encelia farinosa | Asteraceae (Sunflower Family) | Brittlebush | |
| Encelia frutescens | Asteraceae (Sunflower Family) | Button Brittlebush | |
| Enceliopsis covillei | Asteraceae (Sunflower Family) | Panamint Daisy | |
| Enceliopsis nudicaulis | Asteraceae (Sunflower Family) | Naked-Stemmed Daisy | |
| Ephedra viridis | Ephedraceae (Ephedra Family) | Ephedra | |
| Epilobium angustifolium | Onagraceae (Evening Primrose Family) | Fireweed | |
| Epilobium clavatum | Onagraceae (Evening Primrose Family) | Talus Willowherb | |
| Epilobium foliosum | Onagraceae (Evening Primrose Family) | California Willowherb | |
| Epilobium glaberrimum | Onagraceae (Evening Primrose Family) | Glaucous Willowherb | |
| Epilobium obcordatum | Onagraceae (Evening Primrose Family) | Rock Fringe | |
| Epipactis gigantea | Orchidaceae (Orchid Family) | Stream Orchid | |
| Equisetum hyemale | Equisetaceae (Horsetail Family) | Horsetail | |
| Eremalche exilis | Malvaceae (Mallow Family) | Eremalche | |
| Eremalche rotundifolia | Malvaceae (Mallow Family) | Desert Five-Spot | |
| Eremogone aculeata | Caryophyllaceae (Pink Family) | Prickly Sandwort | |
| Eremogone kingii | Caryophyllaceae (Pink Family) | King's Sandwort | |
| Eremogone macradenia | Caryophyllaceae (Pink Family) | Desert Sandwort | |
| Eremothera refracta | Onagraceae (Evening Primrose Family) | Narrowleaf Suncup | |
| Eriastrum densifolium | Polemoniaceae (Phlox Family) | Giant Woollystar | |
| Eriastrum eremicum | Polemoniaceae (Phlox Family) | Desert Woolly Star | |
| Ericameria cuneata | Asteraceae (Sunflower Family) | Cliff Goldenbush | |
| Ericameria discoidea | Asteraceae (Sunflower Family) | Whitestem Goldenbush | |
| Ericameria linearifolia | Asteraceae (Sunflower Family) | Narrowleaf Goldenbush | |
| Ericameria teretifolia | Asteraceae (Sunflower Family) | Green Rabbitbush | |
| Erigeron aphanactis | Asteraceae (Sunflower Family) | Rayless Shaggy Fleabane | |
| Erigeron breweri | Asteraceae (Sunflower Family) | Brewer's Fleabane | |
| Erigeron canadensis | Asteraceae (Sunflower Family) | Canadian Fleabane | |
| Erigeron clokeyi | Asteraceae (Sunflower Family) | Clokey's Fleabane | |
| Erigeron coulteri | Asteraceae (Sunflower Family) | Coulter's Fleabane | |
| Erigeron lonchophyllus | Asteraceae (Sunflower Family) | Shortray Fleabane | |
| Eriodictyon crassifolium | Boraginaceae (Borage Family) | Yerba Santa | |
| Eriogonum brachypodum | Polygonaceae (Buckwheat Family) | Parry's Buckwheat | |
| Eriogonum deflexum | Polygonaceae (Buckwheat Family) | Flat-Topped Buckwheat | |
| Eriogonum fasciculatum | Polygonaceae (Buckwheat Family) | California Buckwheat | |
| Eriogonum glandulosum | Polygonaceae (Buckwheat Family) | Acorn Buckwheat | |
| Eriogonum heermannii | Polygonaceae (Buckwheat Family) | Heermann Buckwheat | |
| Eriogonum inflatum | Polygonaceae (Buckwheat Family) | Desert Trumpet | |
| Eriogonum intrafractum | Polygonaceae (Buckwheat Family) | Jointed Buckwheat | |
| Eriogonum lobbii | Polygonaceae (Buckwheat Family) | Lobb's Buckwheat | |
| Eriogonum mohavense | Polygonaceae (Buckwheat Family) | Mohave Buckwheat | |
| Eriogonum nidularium | Polygonaceae (Buckwheat Family) | Bird's-Nest Buckwheat | |
| Eriogonum nudum | Polygonaceae (Buckwheat Family) | Nude Buckwheat | |
| Eriogonum ovalifolium | Polygonaceae (Buckwheat Family) | Cushion Buckwheat | |
| Eriogonum panamintense | Polygonaceae (Buckwheat Family) | Panamint Buckwheat | |
| Eriogonum pusillum | Polygonaceae (Buckwheat Family) | Yellow Turbans | |
| Eriogonum spergulinum | Polygonaceae (Buckwheat Family) | Spurry Buckwheat | |
| Eriogonum trichopes | Polygonaceae (Buckwheat Family) | Little Desert Buckwheat | |
| Eriogonum umbellatum | Polygonaceae (Buckwheat Family) | Sulphur Flower Buckwheat | |
| Eriogonum umbellatum versicolor | Polygonaceae (Buckwheat Family) | Varicolored Buckwheat | |
| Eriogonum wrightii | Polygonaceae (Buckwheat Family) | Wright's Buckwheat | |
| Eriophyllum ambiguum | Asteraceae (Sunflower Family) | Annual Woolly Sunflower | |
| Eriophyllum pringlei | Asteraceae (Sunflower Family) | Pringle's Woolly Sunflower | |
| Eriophyllum wallacei | Asteraceae (Sunflower Family) | Woolly Daisy | |
| Erodium texanum | Geraniaceae (Geranium Family) | Filaree | |
| Erysimum capitatum | Brassicaceae (Mustard Family) | Wallflower | |
| Erythranthe barbata | Phrymaceae (Lopseed Family) | Bearded Monkeyflower | |
| Eschscholzia glyptosperma | Papaveraceae (Poppy Family) | Desert Gold Poppy | |
| Eschscholzia minutiflora | Papaveraceae (Poppy Family) | Little Gold Poppy | |
| Eucnide urens | Loasaceae (Loasa Family) | Rock Nettle | |
| Eucrypta chrysanthemifolia | Boraginaceae (Borage Family) | Spotted Eucrypta | |
| Eucrypta micrantha | Boraginaceae (Borage Family) | Small Flowered Eucrypta | |
| Euonymous americanus | Celastraceae (Bittersweet Family) | Strawberry Bush | |
| Euphorbia schizoloba | Euphorbiaceae (Spurge Family) | Mojave Spurge | |
| Fagonia laevis | Zygophyllaceae (Caltrop Family) | California Fagonia | |
| Ferocactus cylindraceus | Cactaceae (Cactus Family) | Barrel Cactus | |
| Ficus carica | Moraceae (Mulberry Family) | Fig Tree | |
| Forestiera pubescens | Oleaceae (Olive Family) | Desert Olive | |
| Fragaria virginiana | Rosaceae (Rose Family) | Mountain Strawberry | |
| Frasera speciosa | Gentianaceae (Gentian Family) | Monument Plant | |
| Frasera tubulosa | Gentianaceae (Gentian Family) | Kern Frasera | |
| Fremontodendron californicum | Malvaceae (Mallow Family) | Fremontia | |
| Fritillaria pinetorum | Liliaceae (Lily Family) | Pinewoods Fritillary | |
| Funastrum hirtellum | Apocynaceae (Dogbane Family) | Hairy Milkweed | |
| Gaillardia pulchella | Asteraceae (Sunflower Family) | Blanket Flower | |
| Galax aphylla | Diapensiaceae (Diapensia Family) | Beetleweed | |
| Galium argense | Rubiaceae (Madder Family) | Argus Bedstraw | |
| Galium bifolium | Rubiaceae (Madder Family) | Two-Leaved Bedstraw | |
| Galium hallii | Rubiaceae (Madder Family) | Nodding Bedstraw | |
| Galium hilendiae | Rubiaceae (Madder Family) | Panamint Mountains Bedstraw | |
| Galium matthewsii | Rubiaceae (Madder Family) | Matthew's Bedstraw | |
| Gentiana algida | Gentianaceae (Gentian Family) | Artic Gentian | |
| Gentiana calycosa | Gentianaceae (Gentian Family) | Mountain Bog Gentian | |
| Gentiana newberryi | Gentianaceae (Gentian Family) | Alpine Gentian | |
| Gentianopsis holopetala | Gentianaceae (Gentian Family) | Sierra Gentian | |
| Geraea canescens | Asteraceae (Sunflower Family) | Desert Sunflower | |
| Geranium richardsonii | Geraniaceae (Geranium Family) | Richardson's Geranium | |
| Geum rossii | Rosaceae (Rose Family) | Alpine Avens | |
| Gilia cana | Polemoniaceae (Phlox Family) | Showy Gilia | |
| Gilia filiformis | Polemoniaceae (Phlox Family) | Threadstem Gilia | |
| Gilia latiflora | Polemoniaceae (Phlox Family) | Broad-Flowered Gilia | |
| Gilia latifolia | Polemoniaceae (Phlox Family) | Broad-Leaved Gilia | |
| Gilia sinuata | Polemoniaceae (Phlox Family) | Cinder Gilia | |
| Gilmania luteola | Polygonaceae (Buckwheat Family) | Golden Carpet | |
| Glechoma hederaceae | Lamiaceae (Mint Family) | Creeping Charlie | |
| Glyptopleura marginata | Asteraceae (Sunflower Family) | Keysia | |
| Gnaphalium stramineum | Asteraceae (Sunflower Family) | Cudweed | |
| Grayia spinosa | Chenopodiaceae (Goosefoot Family) | Hopsage | |
| Gypsophila elegans | Caryophyllaceae (Pink Family) | Baby's Breath | |
| Hackelia mundula | Boraginaceae (Borage Family) | Pink Stickseed | |
| Hackelia velutina | Boraginaceae (Borage Family) | Velvety Stickseed | |
| Helenium bigelovii | Asteraceae (Sunflower Family) | Sneezeweed | |
| Helianthella uniflora | Asteraceae (Sunflower Family) | Onehead Sunflower | |
| Heliotropium curassavicum | Boraginaceae (Borage Family) | Heliotrope | |
| Hesperis matronalis | Brassicaceae (Mustard Family) | Dames Rocket | |
| Hesperochiron californicus | Boraginaceae (Borage Family) | California Hesperochiron | |
| Heuchera rebescens | Saxifragaceae (Saxifrage Family) | Pink Alumroot | |
| Hieracium horridum | Asteraceae (Sunflower Family) | Shaggy Hawkweed | |
| Holodiscus discolor | Rosaceae (Rose Family) | Creambush | |
| Horkelia tularensis | Rosaceae (Rose Family) | Kern Plateau Horkelia | |
| Horkeliella purpurascens | Rosaceae (Rose Family) | Purple False Horkelia | |
| Hosackia crassifolia | Fabaceae (Pea Family) | Broad-Leaved Lotus | |
| Hosackia oblongifolius | Fabaceae (Pea Family) | Meadow Lotus | |
| Hulsea algida | Asteraceae (Sunflower Family) | Alpine Hulsea | |
| Hulsea heterochroma | Asteraceae (Sunflower Family) | Redray Hulsea | |
| Hulsea vestita | Asteraceae (Sunflower Family) | Pumice Hulsea | |
| Hymenopappus filifolius | Asteraceae (Sunflower Family) | Columbia Cutleaf | |
| Hymenoxys hoopesii | Asteraceae (Sunflower Family) | Owl's Claws | |
| Hypericum scouleri | Hypericaceae (St. John's Wort Family) | St. John's Wort | |
| Ipomopsis aggregata | Polemoniaceae (Phlox Family) | Scarlet Gilia | |
| Ipomopsis congesta | Polemoniaceae (Phlox Family) | Manyflowered Gilia | |
| Iva axillaris | Asteraceae (Sunflower Family) | Poverty Weed | |
| Ivesia baileyi | Rosaceae (Rose Family) | Bailey's Ivesia | |
| Ivesia lycopodioides | Rosaceae (Rose Family) | Clubmoss Ivesia | |
| Juglans californica | Juglandaceae (Walnut Family) | California Walnut | |
| Juniperus californicus | Cupressaceae (Cypress Family) | California Juniper | |
| Juniperus grandis | Cupressaceae (Cypress Family) | Sierra Juniper | |
| Kalmia latifolia | Ericaceae (Heath Family) | Mountain Laurel | |
| Kalmia polifolia | Ericaceae (Heath Family) | Bog Laurel | |
| Keckiella rothrockii | Plantaginaceae (Plantain Family) | Buckskin Keckiella | |
| Krameria erecta | Rhatany Family (Krameriaceae) | Pima Rhatany | |
| Krascheninnikovia lanata | Chenopodiaceae (Goosefoot Family) | Winter Fat | |
| Langloisia setosissima | Polemoniaceae (Phlox Family) | Lilac Sunbonnet | |
| Larrea tridentata | Zygophyllaceae (Caltrop Family) | Creosote | |
| Layia glandulosa | Asteraceae (Sunflower Family) | White Layia | |
| Lepidium appelianum | Brassicaceae (Mustard Family) | Hairy Whitetop | |
| Lepidium flavum | Brassicaceae (Mustard Family) | Yellow Peppergrass | |
| Lepidium fremontii | Brassicaceae (Mustard Family) | Desert Peppergrass | |
| Lepidium lasiocarpum | Brassicaceae (Mustard Family) | Shaggyfruit Pepperweed | |
| Lepidium virginicum | Brassicaceae (Mustard Family) | Virginia Peppergrss | |
| Leptosiphon nuttallii | Polemoniaceae (Phlox Family) | Nuttall's Linanthus | |
| Leptosiphon oblanceolatus | Polemoniaceae (Phlox Family) | Sierra Nevada Leptosiphon | |
| Leptosyne bigelovii | Asteraceae (Sunflower Family) | Bigelow's Tickseed | |
| Lesquerella kingii | Brassicaceae (Mustard Family) | Beadpod | |
| Lewisia nevadensis | Portulaceae (Purslane Family) | Nevada Bitterroot | |
| Lewisia rediviva | Portulacaceae (Purslane Family) | Bitterroot | |
| Lidia obtusiloba | Caryophyllaceae (Pink Family) | Alpine Sandwort | |
| Ligularia holmii | Asteraceae (Sunflower Family) | Showy Alpine Ragwort | |
| Lilium kelleyanum | Liliaceae (Lily Family) | Tiger Lily | |
| Linanthus demissus | Polemoniaceae (Phlox Family) | Desert Linanthus | |
| Linanthus dichotomus | Polemoniaceae (Phlox Family) | Evening Snow | |
| Linanthus jonesii | Polemoniaceae (Phlox Family) | Jones Linanthus | |
| Linanthus parryae | Polemoniaceae (Phlox Family) | Parry's Linanthus | |
| Linanthus pungens | Polemoniaceae (Phlox Family) | Granite Gilia | |
| Linanthus septentrionalis | Polemoniaceae (Phlox Family) | Northern Linanthus | |
| Linum usitatissimum | Linaceae (Flax Family) | Common Flax | |
| Lobelia cardinalis | Campanulaceae (Bellflower Family) | Cardinal Flower | |
| Loeseliastrum matthewsii | Polemoniaceae (Phlox Family) | Desert Calico | |
| Lomatium foeniculaceum | Apiaceae (Carrot Family) | Desert Biscuitroot | |
| Lomatium mohavense | Apiaceae (Carrot Family) | Desert Parsley | |
| Lonicera involucrata | Caprifoliaceae (Honeysuckle Family) | Black Twinberry | |
| Lotus corniculatus | Fabaceae (Pea Family) | Bird's-Foot Lotus | |
| Lotus salsuginosus | Fabaceae (Pea Family) | Humble Lotus | |
| Lupinus species | Fabaceae (Pea Family) | Lupine | |
| Lupinus albicaulis | Fabaceae (Pea Family) | White Lupine | |
| Lupinus breweri | Fabaceae (Pea Family) | Matted Lupine | |
| Lupinus flavoculatus | Fabaceae (Pea Family) | Yellow Eyes | |
| Lupinus lepidus | Fabaceae (Pea Family) | Prarie Lupine | |
| Lupinus polyphyllus | Fabaceae (Pea Family) | Bog Lupine | |
| Lycium andersonii | Solanaceae (Nightshade Family) | Anderson Wolfberry | |
| Lycium cooperi | Solanaceae (Nightshade Family) | Peach Thorn | |
| Lycium pallidum var. oligospermum | Solanaceae (Nightshade Family) | Pale Wolfberry | |
| Lythrum californicum | Lythraceae (Loosestrife Family) | California Loosestrife | |
| Madia elegans | Asteraceae (Sunflower Family) | Tarweed | |
| Maianthemum stellatum | Liliaceae (Lily Family) | False Lily of the Valley | |
| Malacothrix coulteri | Asteraceae (Sunflower Family) | Snake's Head | |
| Malacothrix glabrata | Asteraceae (Sunflower Family) | Desert Dandelion | |
| Mammillaria tetrancistra | Cactaceae (Cactus Family) | Nipple Cactus | |
| Melilotus indica | Fabaceae (Pea Family) | Sweetclover | |
| Mentzelia albicaulis | Loasaceae (Loasa Family) | Small Flowered Blazing Star | |
| Mentzelia involucrata | Loasaceae (Loasa Family) | Sand Blazing Star | |
| Mentzelia involucrata | Loasaceae (Loasa Family) | Sand Blazing Star | |
| Mentzelia laevicaulis | Loasaceae (Loasa Family) | Giant Blazing Star | |
| Mentzelia oreophilia | Loasaceae (Loasa Family) | Argus Blazing Star | |
| Mentzelia veatchiana | Loasaceae (Loasa Family) | Copper Blazing Star | |
| Mertensia ciliata | Boraginaceae (Borage Family) | Bluebells | |
| Micranthes oregana | Saxifragaceae (Saxifrage Family) | Bog Saxifrage | |
| Mimulus aurantiacus | Scrophulariaceae (Figwort Family) | Bush Monkeyflower | |
| Mimulus bigelovii | Scrophulariaceae (Figwort Family) | Bigelow Monkeyflower | |
| Mimulus cardinalis | Scrophulariaceae (Figwort Family) | Scarlet Monkeyflower | |
| Mimulus guttatus | Scrophulariaceae (Figwort Family) | Common Yellow Monkeyflower | |
| Mimulus moschatus | Phrymaceae (Lopseed Family) | Musk Monkeyflower | |
| Mimulus primuloides | Scrophulariaceae (Figwort Family) | Primrose Monkeyflower | |
| Mimulus rupicola | Scrophulariaceae (Figwort Family) | Death Valley Monkeyflower | |
| Minuartia nuttallii | Caryophyllaceae (Pink Family) | Brittle Sandwort | |
| Mirabilis alipes | Nyctaginaceae (Four O'Clock Family) | Winged Four O'Clock | |
| Mirabilis laevis | Nyctaginaceae (Four O'Clock Family) | Wishbone Bush | |
| Mirabilis multiflora | Nyctaginaceae (Four O'Clock Family) | Giant Four O'Clock | |
| Mitella breweri | Saxifragaceae (Saxifrage Family) | Brewer's Mitrewort | |
| Mohavea breviflora | Plantaginaceae (Plantain Family) | Golden Desert Snapdragon | |
| Monarda fistulosa | Lamiaceae (Mint Family) | Wild Bergamot | |
| Monardella linoides | Lamiaceae (Mint Family) | Narrow-Leaved Monardella | |
| Monardella odoratissima | Lamiaceae (Mint Family) | Pennyroyal | |
| Moneses uniflora | Ericaceae (Heath Family) | Wood Nympth | |
| Monoptilon bellidiforme | Asteraceae (Sunflower Family) | Desert Star Daisy | |
| Myriophyllum aquaticum | Haloragaceae (Water-Milfoil Family) | Parrot's Feather | |
| Nama aretioides | Boraginaceae (Borage Family) | Ground Nama | |
| Nama demissum | Boraginaceae (Borage Family) | Purple Mat | |
| Nama rothrockii | Boraginaceae (Borage Family) | Rothrock's Nama | |
| Nasturtium officinale | Brassicaceae (Mustard Family) | Watercress | |
| Nemophila menziesii | Boraginaceae (Borage Family) | Baby Blue Eyes | |
| Nicotiana attenuata | Solanaceae (Nightshade Family) | Coyote Tobacco | |
| Nicotiana obtusifolia | Solanaceae (Nightshade Family) | Desert Tobacco | |
| Nolina parryi | Asparagaceae (Asparagus Family) | Nolina | |
| Oenothera caespitosa marginata | Onagraceae (Evening Primrose Family) | Tufted Evening-Primrose | |
| Oenothera californica avita | Onagraceae (Evening Primrose Family) | California Evening-Primrose | |
| Oenothera deltoides | Onagraceae (Evening Primrose Family) | Dune Evening-Primrose | |
| Oenothera elata | Onagraceae (Evening Primrose Family) | Hooker's Evening-Primrose | |
| Oenothera xylocarpa | Onagraceae (Evening Primrose Family) | Wood Fruit Evening Primrose | |
| Opuntia basilaris | Cactaceae (Cactus Family) | Beavertail Cactus | |
| Opuntia bigelovii | Cactaceae (Cactus Family) | Teddy-Bear Cholla | |
| Opuntia echinocarpa | Cactaceae (Cactus Family) | Silver Cholla | |
| Opuntia erinacea | Cactaceae (Cactus Family) | Mojave Prickly-Pear Cactus | |
| Opuntia erinaceae ursina | Cactaceae (Cactus Family) | Old Man Cactus | |
| Orobanche fasciculata | Orobanchaceae (Broomrape Family) | Pinyon Broomrape | |
| Orochaenactis thysanocarpha | Asteraceae (Sunflower Family) | Mountain Pincushion | |
| Osmundastrum cinnamomeum | Osmundaceae (Royal Fern Family) | Cinnamon Fern | |
| Oxyria digyna | Polygonaceae (Buckwheat Family) | Mountain Sorrel | |
| Oxytheca perfoliata | Polygonaceae (Buckwheat Family) | Punctured Bract | |
| Paeonia brownii | Paeoniaceae (Peony Family) | Western Peony | |
| Parkinsonia aculeata | Fabaceae (Pea Family) | Mexican Palo Verde | |
| Parnassia californica | Saxifragaceae (Saxifrage Family) | Grass of Parnassus | |
| Pectocarya recurvata | Boraginaceae (Borage Family) | Combbur | |
| Pedicularis canadensis | Orobanchaceae (Broomrape Family) | Canadian Lousewort | |
| Pedicularis groenlandica | Orobanchaceae (Broomrape Family) | Elephant's Head | |
| Pedicularis racemosa | Orobanchaceae (Broomrape Family) | Parrot's Beak Lousewort | |
| Pedicularis semibarbata | Orobanchaceae (Broomrape Family) | Pine Lousewort | |
| Pellaea breweri | Pteridaceae (Brake Family) | Brewer's Cliffbrake | |
| Penstemon caesius | Plantaginaceae (Plantain Family) | San Bernardino Beardtongue | |
| Penstemon davidsonii | Plantaginaceae (Plantain Family) | Alpine Penstemon | |
| Penstemon eatonii | Scrophulariaceae (Figwort Family) | Firecracker Penstemon | |
| Penstemon floridus | Scrophulariaceae (Figwort Family) | Rosy Penstemon | |
| Penstemon fruticiformis | Scrophulariaceae (Figwort Family) | Panamint Penstemon | |
| Penstemon grinnellii | Plantaginaceae (Plantain Family) | Grinnell's Penstemon | |
| Penstemon heterodoxus | Plantaginaceae (Plantain Family) | Whorled Penstemon | |
| Penstemon monoensis | Scrophulariaceae (Figwort Family) | Mono Penstemon | |
| Penstemon newberryi | Scrophulariaceae (Figwort Family) | Mountain Pride | |
| Penstemon palmeri | Scrophulariaceae (Figwort Family) | Palmer's Penstemon | |
| Penstemon patens | Scrophulariaceae (Figwort Family) | Owens Valley Penstemon | |
| Penstemon rostriflorus | Scrophulariaceae (Figwort Family) | Bridges Penstemon | |
| Penstemon speciosus | Plantaginaceae (Plantain Family) | Showy Penstemon | |
| Pentagramma triangularis | Pteridaceae (Brake Family) | Goldenback Fern | |
| Perideridia parishii | Apiaceae (Carrot Family) | Yampah | |
| Perityle emoryi | Asteraceae (Sunflower Family) | Rock Daisy | |
| Petalonyx thurberi | Loasaceae (Loasa Family) | Sandpaper Plant | |
| Petrophyton caespitosum | Rosaceae (Rose Family) | Rock Spiraea | |
| Peucephyllum schottii | Asteraceae (Sunflower Family) | Pygmy Cedar | |
| Phacelia austromontana | Boraginaceae (Borage Family) | Southern Mountain Phacelia | |
| Phacelia calthifolia | Boraginaceae (Borage Family) | Calthaleaf Phacelia | |
| Phacelia campanularia | Boraginaceae (Borage Family) | Desert Bells | |
| Phacelia circutaria | Boraginaceae (Borage Family) | Caterpillar Phacelia | |
| Phacelia crenulata | Boraginaceae (Borage Family) | Notch-Leaf Phacelia | |
| Phacelia curvipes | Boraginaceae (Borage Family) | Dwarf Phacelia | |
| Phacelia fremontii | Boraginaceae (Borage Family) | Fremont Phacelia | |
| Phacelia hastata | Boraginaceae (Borage Family) | Silverleaf Phacelia | |
| Phacelia hydrophylloides | Boraginaceae (Borage Family) | Ballhead Phacelia | |
| Phacelia ivesiana | Boraginaceae (Borage Family) | Ives' Phacelia | |
| Phacelia novenmillensis | Boraginaceae (Borage Family) | Nine Mile Canyon Phacelia | |
| Phacelia orogenes | Boraginaceae (Borage Family) | Mountain Phacelia | |
| Phacelia perityloides | Boraginaceae (Borage Family) | Panamint Phacelia | |
| Phacelia tanacetifolia | Boraginaceae (Borage Family) | Lacy Phacelia | |
| Phlox austromontana | Polemoniaceae (Phlox Family) | Mountain Phlox | |
| Phlox condensata | Polemoniaceae (Phlox Family) | Compact Phlox | |
| Phlox longifolia | Polemoniaceae (Phlox Family) | Longleaf Phlox | |
| Pholistoma membranaceum | Boraginaceae (Borage Family) | Fiesta Flower | |
| Phoradendron californicum | Viscaceae (Mistletoe Family) | Desert Mistletoe | |
| Phoradendron juniperinum | Viscaceae (Mistletoe Family) | Mistletoe | |
| Phragmites australis | Poaceae (Grass Family) | Common Reed | |
| Physalis crassifolia | Solanaceae (Nightshade Family) | Ground Cherry | |
| Physocarpus alternans | Rosaceae (Rose Family) | Nevada Ninebark | |
| Pinus flexilis | Pinaceae (Pine Family) | Limber Pine | |
| Pinus longaeva | Pinaceae (Pine Family) | Great Basin Bristlecone Pine | |
| Pinus monophylla | Pinaceae (Pine Family) | Singleleaf Pinyon Pine | |
| Pinus sabiniana | Pinaceae (Pine Family) | Digger Pine | |
| Plagiobothrys arizonicus | Boraginaceae (Borage Family) | Popcorn Flower | |
| Plantago major | Plantaginaceae (Plantain Family) | Broadleaf Plantain | |
| Plantago ovata | Plantaginaceae (Plantain Family) | Desert Plantain | |
| Platanthera dilatata | Orchidaceae (Orchid Family) | Bog Orchid | |
| Pleurocoronis pluriseta | Asteraceae (Sunflower Family) | Arrowleaf | |
| Pluchea sericea | Asteraceae (Sunflower Family) | Arrowweed | |
| Podaxis pistillaris | Agaricaceae (Agaricus Family) | Desert Puffball | |
| Podophyllum peltatum | Berberidaceae (Barberry Family) | Mayapple | |
| Polemonium eximium | Polemoniaceae (Phlox Family) | Sky Pilot | |
| Polemonium pulcherrimum | Polemoniaceae (Phlox Family) | Jacob's Ladder | |
| Polygonum phytolaccifolium | Polygonaceae (Buckwheat Family) | Alpine Knotweed | |
| Polygonum polygaloides | Polygonaceae (Buckwheat Family) | Milkwort Knotweed | |
| Populus fremontii | Salicaceae (Willow Family) | Cottonwood | |
| Populus tremuloides | Salicaceae (Willow Family) | Quaking Aspen | |
| Porophyllum gracile | Asteraceae (Sunflower Family) | Odora | |
| Porterella carnosula | Campanulaceae (Bellflower Family) | Porterella | |
| Portulaca oleracea | Portulacaceae (Purslane Family) | Purslane | |
| Potamogeton foliosus | Potamogetonaceae (Pondweed Family) | Leafy Pondweed | |
| Potamogeton nodosus | Potamogetonaceae (Pondweed Family) | Floating Pondweed | |
| Primula parryi | Primulaceae (Primrose Family) | Parry's Primrose | |
| Primula suffretescens | Primulaceae (Primrose Family) | Sierra Primrose | |
| Proboscidea parviflora | Martyniaceae (Unicorn Plant Family) | Devil's Claw | |
| Prosopis glandulosa | Fabaceae (Pea Family) | Mesquite | |
| Prunella vulgaris | Lamiaceae (Mint Family) | Selfheal | |
| Prunus andersonii | Rosaceae (Rose Family) | Desert Peach | |
| Prunus fasciculata | Rosaceae (Rose Family) | Desert Almond | |
| Prunus virginiana | Rosaceae (Rose Family) | Chokecherry | |
| Psathyrotes ramoissima | Asteraceae (Sunflower Family) | Turtleback | |
| Pseudostellaria jamesiana | Caryophyllaceae (Pink Family) | Sticky Starwort | |
| Psorothamnus arborescens | Fabaceae (Pea Family) | Indigo Bush | |
| Pterospora andromedea | Ericaceae (Heath Family) | Pine Drops | |
| Pterostegia drymarioides | Polygonaceae (Buckwheat Family) | Valentine Plant | |
| Purshia tridentata | Rosaceae (Rose Family) | Antelope Bush | |
| Pyrola picta | Ericaceae (Heath Family) | Wintergreen | |
| Quercus chrysolepis | Fagaceae (Oak Family) | Canyon Live Oak | |
| Quercus kelloggii | Fagaceae (Oak Family) | Black Oak | |
| Rafinesquia neomexicana | Asteraceae (Sunflower Family) | Desert Chicory | |
| Ranunculus alismifolius | Ranunculaceae (Buttercup Family) | Plantainleaf Buttercup | |
| Ranunculus aquatilis | Ranunculaceae (Buttercup Family) | Water Buttercup | |
| Ranunculus cymbalaria var. saximontanus | Ranunculaceae (Buttercup Family) | Desert Buttercup | |
| Ratibida columnifera | Asteraceae (Sunflower Family) | Prairie Coneflower | |
| Rhodiola integrifolia | Crassulaceae (Stonecrop Family) | Rosy Sedum | |
| Rhododendron calendulaceum | Ericaceae (Heath Family) | Flame Azalea | |
| Rhododendron catawbiense | Ericaceae (Heath Family) | Catawba Rhododendron | |
| Rhododendron columbianum | Ericaceae (Heath Family) | Labrador Tea | |
| Rhus trilobata | Anacardiaceae (Sumac Family) | Skunkbush | |
| Ribes cereum | Grossulariaceae (Gooseberry Family) | Wax Currant | |
| Ribes montigenum | Grossulariaceae (Gooseberry Family) | Mountain Gooseberry | |
| Ribes roezlii | Grossulariaceae (Gooseberry Family) | Sierra Gooseberry | |
| Robinia hisbida | Fabaceae (Pea Family) | Bristly Locust | |
| Rosa woodsii | Rosaceae (Rose Family) | Wild Rose | |
| Rubus parviflorus | Rosaceae (Rose Family) | Thimbleberry | |
| Rumex crispus | Polygonaceae (Buckwheat Family) | Curly Dock | |
| Rumex salicifolius | Polygonaceae (Buckwheat Family) | Willow Dock | |
| Salazaria mexicana | Lamiaceae (Mint Family) | Mexican Bladdersage | |
| Salix exigua | Salicaceae (Willow Family) | Narrow-Leaved Willow | |
| Salix gooddingii | Salicaceae (Willow Family) | Valley Willow | |
| Salsola paulsenii | Chenopodiaceae (Goosefoot Family) | Tumbleweed | |
| Salvia Columbariae | Lamiaceae (Mint Family) | Chia | |
| Salvia dorrii | Lamiaceae (Mint Family) | Purple Sage | |
| Salvia funerea | Lamiaceae (Mint Family) | Death Valley Sage | |
| Salvia pachyphylla | Lamiaceae (Mint Family) | Thick Leaved Sage | |
| Sambucus mexicana | Caprifoliaceae (Honeysuckle Family) | Blue Elderberry | |
| Sarcodes sanguinea | Ericaceae (Heath Family) | Snow Plant | |
| Sarracenia purpurea | Sarraceniaceae (Pitcher Plant Family) | Pitcher Plant | |
| Saxifraga michauxii | Saxifragaceae (Saxifrage Family) | Mountain Saxifrage | |
| Saxifraga odontoloma | Saxifragaceae (Saxifrage Family) | Brook Saxifrage | |
| Sclerocactus polyancistrus | Cactaceae (Cactus Family) | Fishhook Cactus | |
| Scrophularia desertorum | Scrophulariaceae (Figwort Family) | Desert Figwort | |
| Scutellaria siphocampyloides | Lamiaceae (Mint Family) | Skullcap | |
| Sedum lanceolatum | Crassulaceae (Stonecrop Family) | Stonecrop | |
| Senecio amplectens | Asteraceae (Sunflower Family) | Alpine Groundsel | |
| Senecio flaccidus | Asteraceae (Sunflower Family) | Sand-Wash Groundsel | |
| Senecio fremontii | Asteraceae (Sunflower Family) | Rock Groundsel | |
| Senecio mohavensis | Asteraceae (Sunflower Family) | Mohave Groundsel | |
| Senna armata | Fabaceae (Pea Family) | Spiny Senna | |
| Sibbaldia procumbens | Rosaceae (Rose Family) | Sibbaldia | |
| Sidalcea malviflora | Malvaceae (Mallow Family) | Checkerbloom | |
| Sidalcea oregana | Malvaceae (Mallow Family) | Bog Mallow | |
| Silene acaulis | Caryophyllaceae (Pink Family) | Moss Campion | |
| Silene verecunda | Caryophyllaceae (Pink Family) | Catchfly | |
| Sisyrinchium idahoense | Iridaceae (Iris Family) | Blue-Eyed Grass | |
| Solanum americanum | Solanaceae (Nightshade Family) | Nightshade | |
| Solanum rostratum | Solanaceae (Nightshade Family) | Buffalobur | |
| Solanum xanti | Solanaceae (Nightshade Family) | Chaparral Nightshade | |
| Solidago confinis | Asteraceae (Sunflower Family) | Southern Goldenrod | |
| Solidago multiradiata | Asteraceae (Sunflower Family) | Northern Goldenrod | |
| Sphaeralcea ambigua | Malvaceae (Mallow Family) | Desert Mallow | |
| Sphaeralcea ambigua var rosacea | Malvaceae (Mallow Family) | Rosy Apricot Mallow | |
| Sphaeromeria cana | Asteraceae (Sunflower Family) | Alpine Tansy | |
| Spigelia marilandica | Loganiaceae (Pinkroot Family) | Worm Grass | |
| Stachys albens | Lamiaceae (Mint Family) | Hedge Nettle | |
| Stanleya elata | Brassicaceae (Mustard Family) | Panamint Prince's Plume | |
| Stanleya pinnata | Brassicaceae (Mustard Family) | Desert Prince's Plume | |
| Stellaria longpipes | Caryophyllaceae (Pink Family) | Longstalk Starwort | |
| Stephanomeria pauciflora | Asteraceae (Sunflower Family) | Wire Lettuce | |
| Stephanomeria tenuifolia | Asteraceae (Sunflower Family) | Narrow Leaved Wire Lettuce | |
| Stillingia spinulosa | Euphorbiaceae (Spurge Family) | Stillingia | |
| Streptanthella longirostris | Brassicaceae (Mustard Family) | Longfruit Jewelflower | |
| Streptanthus cordatus | Brassicaceae (Mustard Family) | Heartleaf Jewelflower | |
| Streptanthus tortuosus | Brassicaceae (Mustard Family) | Mountain Jewelflower | |
| Styrax grandifolius | Styracaceae (Silver Bells Family) | Bigleaf Snowbell | |
| Suaeda moquinii | Chenopodiaceae (Goosefoot Family) | Seepweed | |
| Swallenia alexandrae | Poaceae (Grass Family) | Eureka Valley Dune Grass | |
| Symphoricarpos longiflorus | Caprifoliaceae (Honeysuckle Family) | Desert Snowberry | |
| Symphoricarpos rotundifolius | Caprifoliaceae (Honeysuckle Family) | Mountain Snowberry | |
| Symphyotrichum spathulatum | Asteraceae (Sunflower Family) | Western Mountain Aster | |
| Syntrichopappus fremontii | Asteraceae (Sunflower Family) | False Woolly Daisy | |
| Tamarix ramosissima | Tamaricaceae (Tamarisk Family) | Tamarisk | |
| Taraxacum officinale | Asteraceae (Sunflower Family) | Common Dandelion | |
| Taraxia subacaulis | Onagraceae (Evening Primrose Family) | Long Leaved Suncup | |
| Tauschia Parishii | Apiaceae (Carrot Family) | Umbrellawort | |
| Tetradymia axillaris | Asteraceae (Sunflower Family) | Cotton Catclaw | |
| Tetrapteron palmeri | Onagraceae (Evening Primrose Family) | Palmer's Suncup | |
| Thalictrum fendleri | Ranunculaceae (Buttercup Family) | Meadow Rue | |
| Thamnosma montana | Rutaceae (Rue Family) | Turpentine Broom | |
| Thysanocarpus curvipes | Brassicaceae (Mustard Family) | Sand Fringepod | |
| Tidestromia oblongifolia | Amaranthaceae (Amaranth Family) | Honeysweet | |
| Tiquilia plicata | Boraginaceae (Borage Family) | Tiquilia | |
| Townsendia scapigera | Asteraceae (Sunflower Family) | Townsendia | |
| Toxicoscordion venenosum | Melanthiaceae (Bunchflower Family) | Death Camas | |
| Tragopogon dubius | Asteraceae (Sunflower Family) | Salsify | |
| Tribulus terrestris | Zygophyllaceae (Caltrop Family) | Puncture Vine | |
| Trifolium andersonii | Fabaceae (Pea Family) | Anderson Clover | |
| Trifolium monanthum | Fabaceae (Pea Family) | Carpet Clover | |
| Trifolium wormskioldii | Fabaceae (Pea Family) | Cow Clover | |
| Trillium catesbaei | Liliaceae (Lily Family) | Bashful Wakerobin | |
| Trillium sessile | Liliaceae (Lily Family) | Toadshade Trillium | |
| Trillium vaseyi | Liliaceae (Lily Family) | Vasey's Trillium | |
| Triodanis perfoliata | Campanulaceae (Bellflower Family) | Venus's Looking Glass | |
| Triteleia ixioides | Liliaceae (Lily Family) | Pretty Face | |
| Turritis glabra | Brassicaceae (Mustard Family) | Tower Rockcress | |
| Typha domingensis | Typhaceae (Cattail Family) | Cattail | |
| Urtica dioica | Urticaceae (Nettle Family) | Stinging Nettle | |
| Vaccaria hispanica | Caryophyllaceae (Pink Family) | Cowcockle | |
| Vaccinium membranaceum | Ericaceae (Heath Family) | Huckleberry | |
| Valeriana acutiloba | Valerianaceae (Valerian Family) | Subalpine Valerian | |
| Various | Lichen (Various Families) | Lichen | |
| Veratrum californicum | Liliaceae (Lily Family) | Corn Lily | |
| Verbascum thapsus | Scrophulariaceae (Figwort Family) | Mullein | |
| Veronica americana | Scrophulariaceae (Figwort Family) | American Brooklime | |
| Veronica serpyllifolia | Plantaginaceae (Plantain Family) | Thymeleaf Speedwell | |
| Vicia americana | Fabaceae (Pea Family) | American Vetch | |
| Viguiera reticulata | Asteraceae (Sunflower Family) | Death Valley Goldeneye | |
| Viola macloskeyi | Violaceae (Violet Family) | White Violet | |
| Viola pinetorum | Violaceae (Violet Family) | Pine Violet | |
| Viola purpurea | Violaceae (Violet Family) | Yellow Violet | |
| Viola septentrionalis | Violaceae (Violet Family) | Northern Woodland Violet | |
| Vitis girdiana | Vitaceae (Grape Family) | Desert Wild Grape | |
| Washingtonia filifera | Palmaceae (Palm Family) | California Fan Palm | |
| Wyethia mollis | Asteraceae (Sunflower Family) | Mule Ears | |
| Xylorhiza tortifolia | Asteraceae (Sunflower Family) | Mojave Aster | |
| Yucca brevifolia | Liliaceae (Lily Family) | Joshua Tree | |