Partial List of Plants of the Sonoran Desert
Sorted by Scientific Name
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- Abronia villosa -Sand Verbena*
- Abutilon incanum -Indian mallow, pelotazo*
- Abutilon malacum -Yellow Indian-mallow
- Abutilon palmeri -Indian Mallow, Flowering Maple*
- Acacia angustissima -White-ball acacia, fern acacia*
- Acacia constricta -Whitethorn acacia (with spines)*
- Acacia constricta -Whitethorn acacia (without spines)*
- Acacia greggii -Cat Claw, Wait-a-minute Bush*
- Acalypha californica (Acalypha pringlei) -Hierba del Cancer, copperleaf*
- Achyronychia cooperi -onyxflower*
- Acleisanthes longiflora -Angel's trumpets (ovate-triangular leaves)
- Acleisanthes longiflora -Angel's trumpets (lanceolate leaves)
- Acourtia wrightii -Brownfoot*
- Adenophyllum porophylloides -Adenophyllum*
- Agave deserti subsp. Simplex -Desert agave, Mezcal*
- Agave deserti subspecies deserti -Desert agave, Mezcal*
- Agave schottii -Amolillo, Shin Dagger*
- Allionia incarnata -Trailing four-o'clock*
- Allium macropetalum -Desert onion, cebollin*
- Aloysia wrightii -Oreganillo*
- Amaranthus fimbriatus -Fringed pigweed, Bledo, Quelitillo
- Amaranthus palmeri -Careless weed
- Ambrosia ambrosioides -Canyon ragweed, giant bursage*
- Ambrosia confertiflora -Slim-leaf ragweed, Estafiate
- Ambrosia cordifolia -Heart-leaf bursage*
- Ambrosia deltoidea -Triangle-leaf bursage*
- Ambrosia deltoidea -Triangle-leaf bursage*
- Ambrosia dumosa -White bursage*
- Ambrosia ilicifolia -Holly-leaved bursage*
- Amsinckia intermedia var. intermedia -Fiddleneck*
- Amsinckia tessellata -Checker fiddleneck
- Anemone tuberosa -Desert windflower*
- Anisacanthus thurberi -Thurber's Desert Honeysuckle, Chuparosa*
- Antirrhinum cyathiferum -Desert snapdragon
- Argemone gracilenta -Prickly poppy, cardo, crested pricklepoppy, bluestem pricklepoppy, chicalote*
- Aristida adscensionis -Six-weeks three-awn, zacate tres barbas*
- Aristida californica var. californica -California three-awn, tres barbas de California*
- Aristida parishii -Parish three-awn*
- Aristida purpurea var. nealleyi (A. glauca) -Purple three-awn, tres barbas*
- Aristida ternipes var. gentilis (A. hamulosa) -Poverty three-awn, zacate arana de tres barbas*
- Aristida ternipes var. ternipes -Spidergrass, zacate arana*
- Aristolochia watsonii -Pipevine, Indian-root, Dutchman's pipe
- Asclepias albicans -White-stem milkweed, yamate*
- Asclepias erosa -Giant sand-milkweed, Hierba del Cuervo
- Asclepias linaria -pine-needle milkweed*
- Asclepias subulata -Desert Milkweed*
- Astragalus insularis var. harwoodii -Sand locoweed*
- Astragalus nuttallianus var. imperfectus -Small-flowered milkvetch*
- Astrolepis cochisensis ssp. Cochisensis -Scaly star fern*
- Astrolepis sinuata -Wavy cloak fern*
- Atriplex canescens -Four-wing saltbush*
- Atriplex elegans ssp fasciculata -Wheel-scale orach, chamiso cenizo
- Atriplex elegans ssp. elegans -Wheel-scale orach, chamiso cenizo
- Atriplex hymenelytra -Desert-holly
- Atriplex linearis (A. canescens ssp. Linearis) -Narrow-leaf saltbush
- Atriplex pacifica -Pacific orach*
- Atriplex polycarpa -Desert saltbush, chamiso cenizo*
- Ayenia filiformis (Ayenia pusilla) -Ayenia
- Ayenia filiformis (Ayenia pusilla) -Ayenia
- Baccharis brachyphylla -Hairy baccharis
- Baccharis salicifolia (B. glutinosa) -Seep willow, batamote*
- Baccharis sarothroides -Desert Broom*
- Baileya multiradiata -Desert Marigold (simple leaves)*
- Baileya multiradiata -Desert Marigold (pinnate leaves) leaves)*
- Baileya pleniradiata -Woolly desert-marigold, Tecomblate (simple leaves)*
- Baileya pleniradiata -Woolly desert-marigold, Tecomblate (pinnate leaves)
- Bebbia juncea var. aspera -Sweetbush*
- Boerhavia diffusa -Red spiderling*
- Boerhavia erecta var. erecta -Spiderling
- Boerhavia erecta var. intermedia -Spiderling
- Boerhavia spicata -Spiderling
- Boerhavia wrightii -Spiderling
- Bothriochloa barbinodis (Andropogon barbinodis) -Cane bluestem, zacate popotillo*
- Bouteloua aristidoides -Six-weeks needle grama, aceitilla, navajita*
- Bouteloua barbata -Six-weeks grama, navajita, zacate liebrero*
- Bouteloua curtipendula -Side-oats grama*
- Bouteloua trifida -Red grama, navajita china*
- Bowlesia incana -Hairy bowlesia
- Brachiaria arizonica (Panicum arizonicum) -Piojillo de Arizona*
- Brandegea bigelovii -Desert starvine*
- Brassica tournefortii -Sahara mustard, wild turnip, mostaza*
- Brassica tournefortii -Sahara mustard, wild turnip, mostaza*
- Brickellia atractyloides var. atractyloides -Leather-leaved brickellia
- Brickellia coulteri -Brickell-bush*
- Bromus carinatus -California brome*
- Bromus rubens (B. madritensis ssp. Rubens) -Foxtail brome, red brome, bromo rojo*
- Bursera microphylla -Elephant tree*
- Caesalpinia glauca (Hoffmanseggia glauca) -Hog potato, camote de raton
- Calandrinia ciliata -Red Maids*
- Calliandra eriophylla -Fairy Duster*
- Calochortus kennedyi -Desert mariposa, Red mariposa-lily, Flame mariposa*
- Calycoseris wrightii -White tackstem*
- Camissonia arenaria -Sand evening primrose
- Camissonia boothii ssp. Condensata -Woody bottle-washer*
- Camissonia brevipes ssp. Brevipes -Golden suncup*
- Camissonia californica -California suncup, mustard evening primrose*
- Camissonia cardiophylla -Heartleaf suncup*
- Camissonia chamaenerioides -Willow-herb evening primrose*
- Camissonia claviformis ssp. Claviformis -Brown-eyed evening primrose*
- Camissonia claviformis ssp. Peeblesii -Brown-eyed evening primrose
- Camissonia claviformis ssp. peirsonii -Peirson's brown-eyed primrose*
- Camissonia claviformis ssp. Rubescens -Brown-eyed evening primrose*
- Carlowrightia arizonica -Lemilla
- Carnegia gigantea -Saguaro, Sahuara, Giant Cactus*
- Castela emoryi -Crucifixion thorn, corona de cristo*
- Castilleja chromosa -Desert Paintbrush*
- Castilleja exserta (Orthocarpus exserta) -Purple owl clover*
- Caulanthus lasiophyllus var. lasiophyllus -Cutleaf thelypodium*
- Celtis pallida -Desert hackberry*
- Celtis reticulata -Netleaf hackberry*
- Cenchrus incertus -Field sandbur, huipapori*
- Chaenactis carphoclinia -Pebble pincushion*
- Chaenactis fremontii -Fremont's pincushion, morning bride*
- Chaenactis stevioides -Desert pincushion*
- Chamaesaracha coronopus -False nightshade, small groundcherry, green-leaf five-eyes*
- Cheilanthes parryi -Parry's lip fern
- Chenopodium murale -Net-leaf goosefoot, chuhal, cuhal
- Chilopsis linearis -Desert willow*
- Chloris virgata -feather fingergrass, cola de zorra, zacate lagunero*
- Chorizanthe brevicornu ssp. Brevicornu -Brittle spine-flower, short-horn spine-flower*
- Chorizanthe corrugata -Wrinkled spine-flower
- Chorizanthe rigida -Rigid spineflower, rigid spinyherb*
- Clematis drummondii -Texas virgin bower
- Colubrina californica -California snake bush, snakewood
- Condalia globosa -Bitter condalia*
- Condalia warnockii -Mexican crucillo*
- Coursetia glandulosa -Baby Bonnets*
- Crassula connata (Tillaea erecta) -Pigmy-weed
- Crossosoma bigelovii -Ragged rockflower*
- Croton sonorae -Sonora croton*
- Croton wigginsii -Dune croton
- Cryptantha angustifolia -Panamint cat's eye, popcorn flower*
- Cryptantha barbigera -Bearded cryptantha*
- Cryptantha ganderi -Dune cryptantha
- Cryptantha holoptera -Winged cryptantha
- Cryptantha maritima var. maritima -White-haired cryptantha
- Cryptantha maritima var.pilosa -White-haired cryptantha
- Cryptantha micrantha subsp. micrantha -Dwarf cryptantha
- Cryptantha pterocarya var. cycloptera -Wing-nut cryptantha*
- Cucurbita digitata -Coyote gourd, calabachilla, chichi coyota*
- Cuscuta umbellata -Flat-globe dodder
- Cynodon dactylon var. dactylon -Bermuda grass, zacate bermuda, zacate ingles*
- Cyperus esculentus var. esculentus -Yellow nutgrass, coquillo, amarillo, cebollin
- Cyperus squarrosus (Cyperus aristatus) -Dwarf sedge
- Dalea mollis -Silky dalea*
- Datura discolor (Datura wrightii) -Sacred datura, thornapple, western jimson*
- Daucus pusillus -Wild carrot, Zanahoria silvestre*
- Delphinium scaposum -Bare-stem larkspur*
- Descurainia pinnata -Tansy mustard (yellow flowers)*
- Descurainia pinnata -Tansy mustard (white flowers)*
- Dichelostemma capitatum subsp. pauciflorum -Blue dicks, wild-hyacinth, coveria*
- Digitaria californica (Trichachne californica) -Cottontop, zacate punta blanca*
- Dimorphocarpa pinnatifida (Dithyrea wislizenii) -Dune spectacle-pod
- Ditaxis brandegeei var. intonsa -Sonoran silverbush
- Ditaxis lanceolata -Narrowleaf silverbush*
- Ditaxis neomexicana -New Mexico ditaxis*
- Ditaxis neomexicana -New Mexico ditaxis*
- Ditaxis serrata var. serrata -Serrate ditaxis
- Dithyrea californica -Spectacle-pod*
- Dodonea viscosa (D.angustifolia) -Hopbush*
- Draba cuneifolia var. integrifolia -Wedge-leaf draba*
- Drymaria viscosa -Drymaria
- Dudleya arizonica -Gila live-forever*
- Echinocactus polycephalus -Cotton-top cactus*
- Echinocereus engelmannii -Strawberry hedgehog Cactus*
- Echinocereus nicholii -Golden hedgehog cactus*
- Echinochloa colonum var. colonum -Junglegrass, junglerice, leopard grass, zacate rayado, zacate pinto, zacate tigre*
- Echinochloa crusgalli var. crusgalli -Barnyard grass, zacate de agua, zacate de corral*
- Echinomastus erectocentrus var. Acunata -Acuña cactus*
- Encelia farinosa -Brittlebush, incienso*
- Encelia farinosa var phenicodonta -Brown-center brittlebush
- Encelia frutescens -Button Brittlebush, Green brittlebush, Rayless encelia*
- Enneopogon desvauxii -Spike pappusgrass, zacate lobero*
- Ephedra aspera -Mormon tea, Boundary ephedra, tepopote*
- Ephedra trifurca -Canutillo, tepopote, long-leaved joint-fir*
- Eragrostis cilianensis -Stinking lovegrass, zacate apestoso*
- Eragrostis lehmanniana -Lehmann lovegrass, zacate africano*
- Eremalche exilis -Eremalche*
- Eremalche rotundifolium -Desert five-spot*
- Eriastrum diffusum -Miniature Woollystar*
- Ericameria laricifolia -Turpentine bush*
- Erigeron divergens (E.lobatus) -Desert fleabane*
- Eriochloa aristata var. aristata -Bearded cupgrass, zacate taza*
- Eriogonum abertianum -Abert's wild buckwheat*
- Eriogonum deflexum -Skeleton Weed (pink flowers)*
- Eriogonum deflexum -Skeleton Weed (white flowers)*
- Eriogonum fasciculatum -Wild buckwheat*
- Eriogonum inflatum -Desert trumpet, bladder stem, guinagua
- Eriogonum thomasii -Thomas buckwheat*
- Eriogonum thurberi -Thurber buckwheat
- Eriogonum trichopes var. trichopes -Little trumpet
- Eriogonum wrightii var. pringlei -Wright buckwheat (white flowers)
- Eriogonum wrightii var. pringlei -Wright buckwheat (pink flowers)
- Erioneuron pulchellum (Tridens pulchellus) -Fluff-grass, zacate borreguerro*
- Eriophyllum lanosum -White easter bonnets, woolly daisy (alternate leaves)*
- Eriophyllum lanosum -White easter bonnets, woolly daisy (opposite leaves)*
- Eriophyllum pringlei -Woolly-daisy*
- Erodium cicutarium -Filaree, storksbill, heronsbill, alfilerillo
- Erodium texanum -False filaree, desert storksbill*
- Eryngium nasturtiifolium -Eryngium
- Eschscholtzia californica ssp. mexicana -Mexican Gold Poppy*
- Eschscholzia minutiflora -Little gold poppy*
- Eucnide rupestris -Velcro plant
- Eucrypta chrysanthemifolia var. bipinnatifida -Chrysanthemum-leaved hideseed*
- Eucrypta micrantha -Peluda, dainty desert hideseed
- Euphorbia abramsiana (Chamaesyce abramsiana) -Golondrina
- Euphorbia albomarginata -Rattlesnake weed*
- Euphorbia eriantha -Euphorbia eriantha*
- Euphorbia florida (Chamaesyce florida) -Flowery spurge
- Euphorbia hyssopifolia (Chamaesyce hyssopifolia) -Hyssop spurge
- Euphorbia micromera (Chamaesyce micromera) -Golondrina
- Euphorbia pediculifera var. pediculifera (Chamaesyce pediculifera) -Louse spurge
- Euphorbia petrina (Chamaesyce petrina) -Golondrina
- Euphorbia polycarpa (Chamaesyce polycarpa) -Desert spurge*
- Euphorbia setiloba (Chamaesyce setiloba) -Fringed spurge
- Euphorbia spathulata -Euphorbia spathulata
- Euphorbia trachysperma (Chamaesyce trachysperma) -Euphorbia trachysperma
- Fagonia californica subsp. Californica -California fagonia
- Fagonia californica subsp.californica -California fagonia*
- Fagonia callifornica subsp. longipes -California fagonia
- Fagonia pachyacantha -Fagonia
- Ferocactus cylindraceus -Mountain barrel cactus*
- Ferocactus emoryi -Coville barrel cactus*
- Ferocactus wislizenii -fishhook barrel, Arizona barrel*
- Festuca octoflora (Vulpia octoflora) -Sixweeks fescue, eight-flowered fescue, fescua*
- Filago arizonica -Arizona fluffweed
- Filago californica -California fluffweed
- Fouquieria splendens -Ocotillo*
- Gaillardia arizonica -Arizona blanket-flower*
- Galium stellatum var. eremicum -Starry bedstraw*
- Gaura parviflora -Lizard-tail, velvet-leaf gaura*
- Geraea canescens -Dune Sunflower, desert sunflower*
- Gilia latifolia -Broad-leaf gilia
- Gilia latifolia -Broad-leaf gilia
- Gilia stellata -Star gilia*
- Grusonia kunzei (Opuntia kunzei) -Desert club cholla, Devil cholla*
- Gutierrezia arizonica -Arizona snakeweed
- Gutierrezia sarothrae -broom snakeweed
- Gymnosperma glutinosa -Gumhead
- Hedeoma nanum var. macrocalyx -False pennyroyal
- Helianthus niveus -Dune sunflower (opposite leaves), Mirasol*
- Helianthus niveus -Dune sunflower (alternate leaves), Mirasol
- Heliotropium curassavicum -Alkali heliotrope, hierba del sapo
- Herissantia crispa -Bladder mallow*
- Hesperocallis undulata -Ajo lily, Desert lily*
- Heteropogon contortus -Tanglehead, zacate colorado*
- Hibiscus coulteri -Desert rose mallow*
- Hibiscus denudatus -Rock hibiscus*
- Hordeum murinum ssp. Glaucum -Wild barley, cebadilla silvestre*
- Horsfordia alata -Pink velvet mallow*
- Horsfordia newberryi -Orange velvet-mallow*
- Hymenoclea monogyra -Slender burrobrush
- Hymenoclea salsola var. pentalepis -White burro-bush*
- Hymenothrix wislizeni -Yellow thimblehead (simple leaves)
- Hymenothrix wislizenii -Yellow thimblehead (pinnate leaves)
- Hymenoxys odorata -Bitterweed*
- Hyptis emoryi -Desert lavender*
- Ipomoea hederacea -Morning glory, trompillo morado
- Isocoma acradenia var. acradenia -Alkali goldenbush (non-lobed leaves)*
- Isocoma acradenia var. acradenia -Alkali goldenbush (lobed leaves)*
- Jacobinia ovata -Jacobinia*
- Jacobinia ovata -Jacobinia*
- Janusia gracilis -Janusia*
- Jatropha cardiophylla -Sangre-de-Cristo*
- Jatropha cinerea -Ashy limberbush*
- Jatropha cuneata -Limberbush*
- Juniperus coahuilensis -Roseberry juniper*
- Justicia californica -Chuparosa*
- Kallstroemia californica -California caltrop, mal de ojo
- Kallstroemia grandiflora -Orange caltrop, baiborin, mal de ojo
- Koeberlinia spinosa var. tenuispina -All-thorn*
- Krameria erecta (Krameria parviflora) -Range ratany
- Krameria grayi -White ratany*
- Langloisia setosissimum -Bristly calico*
- Lappula occidentalis -Stickseed*
- Lappula redowskii -Stickseed
- Larrea divaricata subsp. tridentata (Larrea tridentata) -Creosote bush*
- Lepidium lasiocarpum -Sand peppergrass (pinnatifid leaves))*
- Lepidium lasiocarpum -Sand peppergrass (simple leaves)*
- Lepidium virginicum -Pepperweed*
- Leptochloa mucronata (L. filiformis) -Red sprangletop, zacate salado, desparramo rojo*
- Leptochloa viscida -Sticky sprangletop, zacate salado pegajoso*
- Lesquerella gordonii -Gordon's bladderpod*
- Lesquerella tenella -Delicate bladderpod
- Linanthus bigelovii -Bigelow linanthus
- Linanthus bigelovii -Bigelow linanthus
- Linanthus demissus -Desert snow*
- Loeflingia squarrosa ssp. Cactorum -Loeflingia
- Lophocereus schottii -Senita cactus*
- Lotus humistratus -Foothill bird's-foot trefoil*
- Lotus rigidus -Wiry lotus*
- Lotus salsuginosus var. brevivexillus -Lotus salsuginosus
- Lotus strigosus -Hairy lotus, desert bird's-foot trefoil, desert lotus*
- Lupinus arizonica -Arizona lupine*
- Lupinus concinnus -Elegant lupine*
- Lupinus sparsiflorus -Arroyo lupine, Coulter's lupine*
- Lycium andersonii -Desert wolfberry, salicieso
- Lycium berlandieri -Wolfberry, bachata, salicieso*
- Lycium cooperi -Wolfberry, bachata, salicieso*
- Lycium fremontii -Fremont wolfberry*
- Lycium macrodon -Desert thorn, wolfberry*
- Lycium parishii -Parish wolfberry*
- Lyrocarpa coulteri -Lyre-pod*
- Machaeranthera coulteri var. arida -Psilactis*
- Machaeranthera gracilis -Yellow spiny daisy*
- Machaeranthera pinnatifida var. gooddingii -Spiny goldenweed*
- Malacothrix fendleri -Fendler's desert dandelion*
- Malacothrix glabrata -Smooth desert dandelion*
- Malvella leprosa -Dollarweed, alkali mallow
- Malvella sagittifolia -Malvella*
- Mammillaria grahamii (Mammillaria microcarpa) -Fishhook pincushion cactus*
- Mammillaria tetrancistra -Corkseed fishhook cactus
- Mammillaria thornberi -Thornber fishhook cactus, cabeza de viejo
- Marina parryi -Parry's false prairie-clover*
- Marsilea vestita -Hairy water-clover
- Matelea parvifolia -Angle pod
- Maurandya antirrhinum -Snapdragon vine*
- Menodora scabra -Twinberry, rough menodora*
- Mentzelia affinis -Triangle-seed blazing-star, pega pega*
- Mentzelia albicaulis -White-stem blazing star
- Mentzelia involucrata var. megacantha -Stickleaf, silver blazing-star, pega pega*
- Mentzelia multiflora -Blazing star
- Mentzelia oreophila (Mentzelia puberula) -Mentzelia oreophila*
- Mimosa dysocarpa -Velvetpod mimosa*
- Mimulus bigelovii -Bigelow's monkey flower*
- Mirabilis bigelovii var bigelovii -Desert four o'clock, desert wishbone bush*
- Mohavea confertifolia -Ghost flower*
- Monolepis nuttalliana -Poverty weed, patata
- Monoptilon bellioides -Mojave desert star*
- Montia perfoliata -Miner's lettuce*
- Muhlenbergia microsperma -Littleseed muhly, liendrilla chica*
- Muhlenbergia porteri -Bush muhly, zacate aparejo*
- Nama demissum -Purplemat*
- Nama hispidum -Bristly nama, morada, sandbells
- Nemacaulis denudata var. gracilis -Woolly heads (yellow flowers)
- Nemacaulis denudata var. gracilis -Woolly heads (pink flowers)
- Nemacladus glanduliferus var. orientalis -Threadstem*
- Nicotiana clevelandii -Desert tobacco, tobaco del coyote
- Nicotiana obtusifolia (Nicotiana trigonophylla) -Desert tobacco*
- Nolina bigelovii -Desert tree-beargrass*
- Nolina microcarpa -Beargrass, sacahuista, basket grass*
- Notholaena californica ssp. Californica -Indian fern, california cloak fern
- Notholaena standleyi -Star cloak fern*
- Oenothera arizonica -Arizona evening primrose*
- Oenothera deltoides subsp. deltoides -Dune primrose, White desert primrose*
- Oenothera primiveris -Yellow desert primrose*
- Oligomeris linifolia -Desert cambess, slender-leaf cambess
- Olneya tesota -Ironwood*
- Opuntia acanthocarpa -Buckhorn cholla*
- Opuntia arbuscula -Pencil cholla*
- Opuntia basilaris -Beaver tail cactus*
- Opuntia bigelovii -Teddy bear cholla*
- Opuntia chlorotica -Pancake prickly-pear*
- Opuntia echinocarpa -Silver cholla*
- Opuntia engelmannii var. engelmannii -Engelmann prickly pear*
- Opuntia engelmannii var.flavispina -Engelmann prickly pear*
- Opuntia fulgida var. fulgida -Chain-fruit cholla*
- Opuntia fulgida var. mammillata -Spineless chain-fruit cholla*
- Opuntia leptocaulis -Desert Christmas cholla, Tasajillo*
- Opuntia leptocaulis -Desert Christmas cholla, Tasajillo*
- Opuntia ramosissima -Diamond cholla*
- Opuntia spinosior -Cane cholla*
- Opuntia spinosior -Cane cholla*
- Opuntia spinosior -Cane cholla*
- Opuntia versicolor -Staghorn cholla*
- Orobanche cooperi -Desert broomrape, flor de tierra*
- Palafoxia arida var. arida -Spanish needles*
- Panicum alatum var. alatum -Panicum
- Panicum hirticaule var. hirticaule -Mexican panicgrass*
- Parietaria floridana (Parietaria hespera) -Desert pellitory
- Parkinsonia florida (Cercidium floridum) -Blue Palo Verde*
- Parkinsonia microphyllum (Cercidium microphyllum) -Foothill paloverde*
- Pectis papposa var. papposa -Desert chinchweed, Manzanilla del coyote*
- Pectocarya heterocarpa -Mixed-nut comb-bur
- Pectocarya platycarpa -Broad-wing comb-bur*
- Pectocarya recurvata -Arched comb-bur*
- Peniocereus greggii var. transmontanus (Cereus greggii) -Cereus, Reina de la noche, Night-blooming cereus*
- Peniocereus striatus -Wilcoxia*
- Pennisetum ciliare (Cenchrus ciliaris) -Buffelgrass, zacate buffel
- Pennisetum setaceum (P. ruppelii) -Fountain grass*
- Penstemon parryi -Parry penstemon*
- Penstemon pseudospectabilis var. pseudospectabilis -Mojave beard tongue
- Penstemon subulatus -Arizona scarlet-bugler*
- Perityle emoryi -Desert rockdaisy*
- Petalonyx thurberi subsp. thurberi -Sandpaper plant
- Peucephyllum schottii -Desert fir, Pygmy cedar*
- Phacelia ambigua (Phacelia crenulata) -Scorpionweed*
- Phacelia distans -Blue-eyed scorpion-weed*
- Phacelia neglecta -Brittle phacelia*
- Phalaris minor -Little-seed canary grass, alpisillo, alpiste silvestre*
- Phaseolus filiformis -Slim-Jim bean, desert bean*
- Phlox tenuifolia -Phlox*
- Pholistoma auritum var. arizonicum -Arizona fiesta flower*
- Phoradendron californicum -Desert mistletoe, Toji*
- Physalis crassifolia var. versicolor -Desert groundcherry, tomatillo del desierto*
- Physalis lobata -Ground cherry*
- Plantago ovata (Plantago insularis var. fastigiata) -Woolly plantain, Indian wheat, pastora
- Plantago patagonica -Plantain*
- Pleuraphis rigida (Hilaria rigida) -Big galleta, galleta grande, tobosa*
- Pleurocoronis pluriseta -Arrow-leaf (opposite leaves)
- Pleurocoronis pluriseta -Arrow-leaf (alternate leaves)
- Pluchea purpurascens var. purpurascens (P. sericea) -Arrow weed*
- Poa bigelovii -Bigelow bluegrass, zacate azul nativo*
- Polygonum argyrocoleon -Silversheath
- Porophyllum gracile -Odora, hierba del venado*
- Portulaca halimoides -Portulaca
- Prenanthella exigua (Lygodesmia exigua) -
- Proboscidea altheaefolia -Devil's claw, gato, una de gato, torito (opposite leaves)
- Proboscidea altheaefolia -Devil's claw, gato, una de gato, torito (alternate leaves)
- Prosopis glandulosa var. torreyana -Western honey mesquite*
- Prosopis pubescens -Screwbean mesquite*
- Prosopis velutina -Velvet mesquite*
- Psathyrotes ramosissima -Desert velvet*
- Psilostrophe cooperi -Paper flower*
- Psorothamnus emoryi var. emoryi -Emory indigo-bush
- Psorothamnus schottii -Indigo bush*
- Psorothamnus spinosus -Smoke tree*
- Quercus ajoensis -Ajo oak*
- Rafinesquia californica -California chicory
- Rafinesquia neomexicana -Desert chicory*
- Rhamnus crocea -Holly-leaf buckthorn, red berry buckthorn*
- Rhus kearneyi subsp. kearneyi -Desert sumac*
- Salazaria mexicana -Bladder sage
- Salsola tragus (Salsola kali) -Russian thistle, tumbleweed, chamizo volador*
- Salvia columbariae -Desert chia, chia, california sage*
- Sarcostemma cynanchoides var. hartwegii -Climbing milkweed*
- Schismus arabicus -Arabic schismus*
- Schismus barbatus -Mediterranean grass*
- Sebastiania bilocularis (Sapium biloculare) -Jumping bean*
- Selaginella arizonica -Arizona spike-moss, flor de piedra*
- Selaginella eremophila -Desert spike-moss, flor de piedra
- Senecio lemmonii -Lemmon groundsel
- Senecio mohavensis -Mojave groundsel*
- Senna covesii (Cassia covesii) -Desert senna, daisillo, hojasen*
- Setaria leucopila -White-haired bristlegrass, zacate temprano*
- Silene antirrhina -Sleepy catchfly
- Simmondsia chinensis -Jojoba*
- Sisymbrium irio -London rocket, pamita*
- Solanum eleagnifolium -Silver-leaf nightshade, white horse-nettle
- Sonchus asper -Prickly sow thistle, chinita*
- Sonchus oleraceus -Common sow thistle, chinita*
- Sorghum halepense -Johnson grass, zacate johnson*
- Spermolepis echinata -Scale seed
- Sphaeralcea ambigua subsp. ambigua -Desert globe mallow*
- Sphaeralcea coulteri -Annual globe mallow, mal de ojo*
- Sphaeralcea emoryi -Mal de ojo
- Sphaeralcea orcuttii -Orcutt globe mallow
- Sporobolus airoides -Alkali sacaton, zacaton alcalino*
- Sporobolus cryptandrus -Sand dropseed, zacate de arena*
- Stenocereus thurberi -Organ pipe cactus*
- Stephanomeria pauciflora var. pauciflora -Desert straw*
- Stephanomeria schottii -Schott's wire-lettuce
- Stillingia linearifolia -Stillingia*
- Streptanthella longirostris -Long-beaked twist-flower*
- Streptanthus carinatus subsp.arizonicus -Arizona jewelflower*
- Stylocline micropoides -Desert nest-straw
- Suaeda moquinii (Suaeda torreyana) -Desert seepweed, quelite salado
- Tamarix ramosissima -Salt-cedar, tamarisk, salado, pino salado
- Tetraclea coulteri -Coulter's wrinkle-fruit
- Teucrium cubense subsp. depressum -Germander
- Teucrium glandulosum -Germander*
- Thamnosma montana -Turpentine broom
- Thymophylla concinna -Manzanilla del coyote
- Thymophylla pentachaeta -Common dogweed
- Thysanocarpus curvipes -Lacepod (alternate leaves)*
- Thysanocarpus curvipes -Lacepod (basal leaves)*
- Tidestromia lanuginosa -Honeysweet, Hierba ceniza
- Tiquilia canescens -Wooly crinklemat, oreja del perro*
- Tiquilia canescens -Wooly crinklemat, oreja del perro*
- Tiquilia palmeri -Coldenia, crinklemats
- Tragia nepetifolia -Ortoguilla, noseburn*
- Tribulus terrestris -Puncture vine, goathead, torito, toboso
- Trichoptilium incisum -Yellow head, yellowdome*
- Tridens muticus var. muticus -Slim tridens*
- Trifolium lacerum -Clover*
- Triteleiopsis palmeri -Blue sand lily*
- Trixis californica -Trixis*
- Trixis californica -Trixis*
- Uropappus lindleyi -Silver puffs*
- Uropappus lindleyi -Silver puffs*
- Vauquelinia californica -Arizona rosewood*
- Verbena bracteata -Prostrate vervain
- Verbena bracteata -Prostrate vervain
- Verbena gooddingii (Glandularia gooddingii) -Goodding's vervain
- Verbena neomexicana -Hillside vervain*
- Verbena officinalis ssp. halei -Vervain
- Veronica peregrina subsp. xalapensis -Purslane speedwell, necklace-weed*
- Viguera parishii -Parish goldeneye*
- Washingtonia filifera -Fan palm*
- Wislizenia refracta ssp. Refracta -Jackass clover
- Yucca arizonica -Yucca*
- Yucca shidigera -Mojave yucca, Datillo*
- Zinnia acerosa -Desert zinnia*
- Ziziphus obtusifolia var. canescens -Gray-thorn*
- Ziziphus obtusifolia var. canescens -Gray-thorn*
*Species page has photo(s).