Plants by Scientific Name
- Abronia villosa, Desert Sand Verbena
- Abutilon palmeri, Palmer's Indian Mallow
- Acacia greggii, Catclaw Acacia
- Acaciellia angustissima, White-ball Acacia
- Acalypha neomexicana, New Mexico Copperleaf
- Acamptopappus sphaerocephalus, Rayless Goldenhead
- Achillea millefolium, Common Yarrow
- Achyronychia cooperi, Onyxflower
- Acourtia nana, Dwarf Desertpeony
- Acourtia thurberi, Thurber's Desertpeony
- Acourtia wrightii, Wright's Desertpeony, Brownfoot
- Adenophyllum porophylloides, San Felipe Dogweed
- Agave chrysantha, Goldenflower Century Plant
- Agave lechuguilla, Lechuguilla
- Agave parryi, Parry's Agave
- Agave schottii, Schott's Century Plant
- Agave toumeyana, Toumey's Agave
- Agave toumeyana v bella, Toumey's Agave
- Ageratina herbacea, Fragrant Snakeroot
- Agoseris glauca, Pale Agoseris or Pale Dandelion
- Agoseris heterophylla, Annual Agoseris
- Ailanthus altissima, Tree of Heaven
- Almutaster pauciflorus, Alkali Marsh Aster
- Aliciella latifolia, Broad-leaf Gily-flower
- Allionia choisyi, Annual Windmills
- Allionia incarnata, Trailing Windmills
- Allium campanulatum, Dusky Onion
- Allowissadula holosericea, Chisos Mtn False Indianmallow
- Alternanthera caracasana, Khaki Weed
- Alternanthera pungens, Khakiweed
- Amaranthus albus, Prostrate Pigweed
- Amaranthus blitoides, Mat Amaranth
- Amaranthus fimbriatus, Fringed Amaranth
- Amaranthus palmeri, Carelessweed
- Ambrosia ambrosioides, Ambrosia Leaf Bur Ragweed
- Ambrosia deltoidea, Triangle-leaf Bursage
- Ambrosia dumosa, White Bursage
- Ambrosia eriocentra, Woolly Bursage
- Ambrosia monogyra, Singlewhorl Burrobrush
- Ambrosia salsola, Cheesebush
- Amelanchier utahensis, Utah Serviceberry
- Amoreuxia palmatifida, Mexican Yellowshow
- Amsinckia menziesii var. intermedia, Common Fiddleneck
- Amsonia tomentosa, Woolly Bluestar
- Anaphalis margaritacea, Western Pearly Everlasting
- Anemopsis californica, Yerba Mansa
- Anemone tuberosa, Tuber Anemone
- Anisacanthus thurberi, Thurber's Desert Honeysuckle
- Anoda cristata, Crested Anoda
- Antheropeas lanosum see Eriophyllum lanosum, White Woolly Daisy
- Anthriscus caucalis, Burr Chervil
- Antigonon leptopus, Coral Vine
- Apodanthera undulata, Melon Loco
- Aquilegia chrysantha, Golden Columbine
- Aristolochia watsonii, Watson's Dutchman's Pipe
- Arctostaphylos pringlei, Pringle Manzanita
- Arctostaphylos pungens, Pointleaf Manzanita
- Argemone gracilenta, Prickly Poppy
- Argemone pleiacantha, Southwestern Pricklypoppy
- Asclepias angustifolia, Arizona Milkweed
- Asclepias asperula, Antelope Horns Milkweed
- Asclepias curassavica, Mexican Butterfly Weed
- Asclepias involucrata, Dwarf Milkweed
- Asclepias linaria, Pineneedle Milkweed
- Asclepias subulata, Rush Milkweed
- Asclepias subverticillata, Horsetail Milkweed
- Aspicarpa hirtella, Chaparral Asphead
- Astragalus arizonicus, Arizona Milkvetch
- Astragalus didymocarpus, Dwarf White Milkvetch
- Astragalus tephrodes, Ashen Milkvetch
- Atrichoseris platyphylla, Parachute Plant
- Atriplex canescens, Four-wing Salt Bush
- Atriplex elegans, Wheelscale Saltbush
- Atriplex hymenelytra, Desertholly
- Atriplex lentiformis, Quailbush
- Atriplex semibaccata, Australian Saltbush
- Atriplex torreyi var. griffithsii, Griffiths Saltbush
- Baccharis pteronioides, Yerba de Pasmo
- Baccharis salicifolia, Seep Willow
- Baccharis sarothroides, Desertbroom
- Bahiopsis parishii, Parish's Goldeneye
- Baileya multiradiata, Desert Marigold
- Baileya pleniradiata, Woolly Desert Marigold
- Bebbia juncea, Sweetbush Bebbia
- Berberis haematocarpa, Red Barberry
- Berberis repens, Creeping Barberry
- Berlandiera lyrata, Chocolate Flower
- Bidens aurea, Apache Beggarticks
- Bidens bigelovii, Bigelow's Beggarticks
- Bidens laevis, Smooth Beggartick
- Bidens leptocephala, Fewflower Beggarticks
- Boechera perennans, Perennial Rockcress
- Boerhavia coccinea, Scarlet Spiderling
- Boerhavia coulteri, Coulter's Spiderling
- Boerhavia intermedia, Fivewing Spiderling
- Bowlesia incana, Hoary Bowlesia
- Brandegea bigelovii, Desert Starvine
- Brassica tournefortii, Asian Mustard
- Brickellia californica, California Brickellbush
- Brickellia coulteri, Coulter's Brickellbush
- Brickellia floribunda, Chihuahuan Brickellbush
- Brickellia venosa, Veiny Brickellbush
- Bursera microphylla, Elephant Tree
- Caesalpinia gilliesii, Bird-of-Paradise Shrub
- Caesalpinia pulcherrima, Red Bird-of-Paradise
- Calandrinia ciliata, Fringed Redmaids
- Callaeum macropterum, Yellow Orchid Vine
- Calliandra californica, Baja Fairy Duster
- Calliandra eriophylla, Fairyduster
- Calibrachoa parviflora, Seaside Petunia
- Calochortus ambiguus, Doubting Mariposa Lily
- Calochortus gunnisonii, Gunnison's Mariposa Lily
- Calochortus kennedyi, Desert Mariposa Lily
- Calochortus nuttallii, Sego Lily
- Calycoseris parryi, Yellow Tackstem
- Calycoseris wrightii, White Tackstem
- Calystegia longipes, Paiute False Bindweed
- Camissonia californica, see Eulobus californicus, California Suncup
- Camissonia claviformis, see Chylismia claviformis, Browneyes
- Camissonia brevipes, see Chylismia brevipes, Yellow Cups
- Camissonia micrantha, Miniature Suncup
- Canotia holacantha, Crucifixion Thorn
- Capsella bursa-pastoris, Shepherdspurse
- Carduus pycnocephalus, Italian Plumeless-Thistle
- Carlowrightia linearifolia, Heath Wrightwort
- Carnegiea gigantea, Saguaro
- Carphochaete bigelovii, Bigelow's Bristlehead
- Castela emoryi, Crucifixion Thorn
- Castilleja exserta, Exserted Indian Paintbrush
- Castilleja integra, Wholeleaf Indian Paintbrush
- Caulanthus lasiophyllus, California Mustard
- Ceanothus fendleri, Fendler's Ceanothus
- Ceanothus greggii, Desert Ceanothus
- Ceanothus integerrimus, Ceanothus Deerbrush
- Celtis pallida, Spiny Hackberry
- Celtis reticulata, Netleaf Hackberry
- Cercocarpus montanus, Mountain Mahogany
- Centaurea melitensis, Maltese Star-thistle
- Centaurea solstitialis, Yellow Star-thistle
- Centaurium arizonicum (see Zeltnera arizonica), Arizona Centaury
- Cephalanthus occidentalis, Common Buttonbush
- Chaenactis carphoclinia, Pebble Pincushion
- Chaenactis stevioides, Esteve’s Pincushion
- Chaenactis xantiana, Fleshcolor Pincushion
- Chaetopappa ericoides, Rose Heath
- Chamaesyce albomarginata, Whitemargin Sandmat
- Chamaesyce arizonica, Arizona Sandmat
- Chamaesyce capitellata, Head Sandmat
- Chamaesyce dioica, Royal Sandmat
- Chamaesyce florida, Chiricahua Mountain Sandmat
- Chamaesyce hyssopifolia, Hyssopleaf Sandmat
- Chamaesyce melanadenia, Red-gland Sandmat
- Chamaesyce pediculifera, Carrizo Mountain Sandmat
- Chamaesyce revoluta, Threadstem Sandmat
- Chamaesyce setiloba, Yuma Sandmat
- Chenopodiastrum murale, Nettleleaf Goosefoot
- Chenopodium album, Lambsquarters
- Chenopodium ficifolium, Fig-Leaf Goosefoot
- Chilopsis linearis, Desert Willow
- Chorizanthe brevicornu, Brittle Spineflower
- Chorizanthe rigida, Rigid Spineflower
- Chrysactinia mexicana, Damianita
- Chylismia brevipes, Yellow Cups
- Chylismia claviformis, Browneyes
- Cirsium arizonicum, Arizona Thistle
- Cirsium grahamii, Graham's Thistle
- Cirsium mohavense, Mojave Thistle
- Cirsium neomexicanum, New Mexico Thistle
- Cirsium ochrocentrum, Yellowspine Thistle
- Cistanthe ambigua, Desert Pussypaws
- Clarkia purpurea, Winecup Clarkia
- Claytonia parviflora, Streambank Springbeauty
- Claytonia perfoliata, Miner's Lettuce
- Clematis drummondii, Drummond's Clematis
- Cleome isomeris, Bladderpod Spiderflower (=Peritoma arborea)
- Colubrina californica, Las Animas Nakedwood
- Comandra umbellata, Bastard Toadflax
- Commelina erecta, Whitemouth Dayflower
- Convolvulus arvensis, Field Bindweed
- Convolvulus equitans, Texas Bindweed
- Conoclinium greggii, Palmleaf Thoroughwort
- Conyza canadensis, Canadian Horseweed
- Coreopsis tinctoria, Golden Tickseed
- Cordia parvifolia, Little-leaf Cordia
- Cornus sericea, Red-osier Dogwood
- Cosmos parviflorus, Southwestern Cosmos
- Cottsia gracilis, Slender Janusia
- Coursetia glandulosa, Rosary Babybonnets
- Crossosoma bigelovii, Ragged Rockflower
- Crotalaria pumila, Low Rattlebox
- Croton pottsii, Leatherweed
- Croton wigginsii, Wiggins Croton
- Cryptantha angustifolia, Panamint Cryptantha (=Johnstonella angustifolia)
- Cryptantha barbigera, Bearded Cryptantha
- Cryptantha ganderi, Gander's Cryptantha
- Cryptantha gracilis, Narrowstem Cryptantha
- Cryptantha micrantha, Redroot Cryptantha
- Cryptantha pterocarya, Wingnut Cryptantha
- Cryptantha torreyana, Torrey's Cryptantha
- Cupressus arizonica, Arizona Cypress (=Hesperocyparis arizonica)
- Cuscuta indecora, Bigseed Alfalfa Dodder
- Cylindropuntia acanthocarpa, Buckhorn Cholla
- Cylindropuntia arbuscula, Arizona Pencil Cholla
- Cylindropuntia bigelovii, Teddy Bear Cholla
- Cylindropuntia ganderi, Gander's Buckhorn Cholla
- Cylindropuntia kleiniae, Klein's Pencil Cactus
- Cylindropuntia leptocaulis, Christmas Cactus
- Cylindropuntia spinosior, Walkingstick Cactus
- Cylindropuntia tesajo, Baja Pencil Cholla
- Cymopterus lemmonii, Alpine False Springparsley
- Dalea albiflora, Whiteflower Prairie Clover
- Dalea formosa, Indigobush
- Dalea mollissima, Soft Prairie Clover
- Dasylirion wheeleri, Sotol
- Datura discolor, Desert Thorn-apple
- Datura quercifolia, Chinese Thornapple
- Datura wrightii, Western Jimson Weed
- Daucus pusillus, American Wild Carrot
- Delphinium scaposum, Tall Mountain Larkspur
- Descurainia pinnata, Western Tansymustard
- Desmanthus cooleyi, Cooley's Bundleflower
- Desmodium batocaulon, San Pedro Ticktrefoil
- Dichelostemma capitatum, Bluedick
- Dicliptera resupinata, Arizona Foldwing
- Dicoria canescens, Desert Twinbugs
- Dieteria canescens, Hoary Tansyaster
- Dimorphocarpa wislizeni, Spectaclepod
- Ditaxis lanceolata, Narrowleaf Silverbush
- Ditaxis neomexicana, New Mexico Silverbush
- Dodonaea viscosa, Florida Hopbush
- Draba cuneifolia, Wedgeleaf Draba
- Dracocephalum parviflorum, American Dragonhead
- Dudleya collomiae saxosa, Gila County Live-forever
- Dyschoriste schiedeana v decumbens, Spreading Snakeherb
- Dyssodia papposa, Fetid Marigold
- Echeandia flavescens, Torrey's Craglily
- Echinocereus bonkerae, Pinkflower Hedgehog Cactus
- Echinocereus coccineus, Scarlet Hedgehog Cactus
- Echinocereus engelmannii, Hedgehog Cactus
- Echinocereus fasciculatus, Pinkflower Hedgehog Cactus
- Echinocereus rigidissimus, Rainbow Hedgehog Cactus
- Echinopepon wrightii, Wild Balsam Apple
- Eclipta prostrata, False Daisy
- Emmenanthe penduliflora, Whisperingbells
- Encelia farinosa, Brittlebush
- Encelia frutescens, Button Brittlebush
- Encelia virginensis, Virgin River Brittlebush
- Enchylaena tomentosa, Ruby-Saltbush
- Epilobium canum, Hummingbird Trumpet
- Eremalche exilis, White Mallow
- Eremalche rotundifolia, Desert Fivespot
- Eremothera boothii, Woody Bottle-Washer
- Eriastrum diffusum, Miniature Woollystar
- Eriastrum eremicum, Desert Woolystar
- Ericameria laricifolia, Turpentine Bush
- Ericameria linearifolia, Narrowleaf Goldenbush
- Ericameria nauseosa, Rabbitbrush
- Erigeron divergens, Spreading Fleabane
- Eriodictyon angustifolium, Narrowleaf Yerba Santa
- Eriogonum abertianum, Abert's Buckwheat
- Eriogonum deflexum, Skeleton Weed
- Eriogonum fasciculatum, Flat-top Buckwheat
- Eriogonum inflatum, Desert Trumpet
- Eriogonum trichopes, Little Deserttrumpet
- Eriogonum umbellatum, Sulphur-flower Buckwheat
- Eriogonum wrightii, Wright Buckwheat
- Eriophyllum lanosum, White Woolly Daisy
- Eriophyllum pringlei, Pringle's Wooly Sunflower
- Eriophyllum wallacei, Wallace Eriophyllum
- Erodium cicutarium, Redstem Stork's Bill
- Erodium texanum, Texas Stork's Bill
- Eruca vesicaria ssp. sativa, Salad Rocket
- Eryngium heterophyllum, Wright's Eryngo
- Erysimum capitatum, Western Wallflower
- Erythrina flabelliformis, Coralbean
- Eschscholzia californica, California Poppy
- Eschscholzia glyptosperma, Desert Poppy
- Eschscholzia minutiflora, Pygmy Poppy
- Eucrypta micrantha, Dainty Desert Hideseed
- Eulobus californicus, California Suncup
- Euphorbia eriantha, Beetle Spurge
- Euphorbia heterophylla, Mexican Fireplant
- Euphorbia incisa, Mojave spurge
- Euphorbia radians, Sun Spurge
- Evolvulus arizonicus, Arizona Blue-eyes
- Evolvulus sericeus, Silver Dwarf Morning-glory
- Eysenhardtia orthocarpa, Tahitian Kidneywood
- Fagonia laevis, California Fagonbush
- Fallugia paradoxa, Apache Plume
- Fendlera rupicola, Cliff Fendlerbush
- Ferocactus cylindraceus, California Barrel Cactus
- Ferocactus wislizeni, Candy Barrelcactus
- Fouquieria splendens, Ocotillo
- Fraxinus velutina, Velvet Ash
- Fremontodendron californicum, California Flannelbush
- Funastrum (=Sarcostemma) cynanchoides, Fringed Twinevine
- Gaillardia pinnatifida, Red Dome Blanketflower
- Gaillardia pulchella, Firewheel
- Galium aparine, Common Bedstraw
- Galium stellatum, Starry Bedstraw
- Garrya flavescens, Ashy Silktassel
- Garrya wrightii, Wright's Silktassel
- Gaura epilobia See Oenothera rosea
- Gaura parviflora See Oenothera curtiflora
- Gaura coccinea See Oenothera suffrutescens
- Geraea canescens, Hairy Desertsunflower
- Geranium caespitosum, Pineywoods Geranium
- Geranium carolinianum, Carolina Geranium
- Geranium richardsonii, Richardson's Geranium
- Gilia flavocincta, Lesser Yellowthroat Gilia
- Gilia sinuata, Rosy Gilia
- Gilia stellata, Star Gila
- Gomphrena caespitosa, Tufted Globe Amaranth
- Gomphrena nitida, Sonoran Globe Amaranth
- Gomphrena sonorae, Sonoran Globe Amaranth
- Grindelia squarrosa, Curlycup Gumweed
- Guilleminea densa, Small Matweed
- Gutierrezia microcephala, Threadleaf Snakeweed
- Gutierrezia sarothrae, Broom Snakeweed
- Gutierrezia serotina, Late Snakeweed
- Harpagonella palmeri, Palmer's Grapplinghook
- Hedeoma nana, Dwarf False Pennyroyal
- Hedypnois cretica, Cretanweed
- Helianthus annuus, Common Sunflower
- Helianthus niveus, Showy Sunflower
- Helianthus petiolaris, Prairie Sunflower
- Heliomeris longifolia, Longleaf False Goldeneye
- Heliotropium curassavicum, Salt Heliotrope
- Heracleum maximum, Common Cowparsnip
- Herniaria hirsuta, Hairy Rupturewort
- Hesperidanthus linearifolius, Slimleaf Plainsmustard
- Hesperocallis undulata, Desert Lily
- Hesperocyparis arizonica (=Cupressus arizonica), Arizona Cypress
- Heterotheca subaxillaris, Camphorweed
- Hibiscus coulteri, Coulter Hibiscus
- Hoffmannseggia glauca, Indian Rushpea
- Hoffmannseggia microphylla, Wand Holdback
- Houstonia wrightii, Pygmy Bluet
- Hymenopappus filifolius, Fineleaf Hymenopappus
- Hymenothrix loomisii, Loomis' Thimblehead
- Hymenothrix wislizeni, Trans-Pecos Thimblehead
- Hymenothrix wrightii, Wright's Thimblehead
- Hymenoxys rusbyi, Rushby's Rubberweed
- Hyptis emoryi, Desert Lavender
- Ipomoea barbatisepala, Canyon Morning-glory
- Ipomoea capillacea, Purple Morning-glory
- Ipomoea costellata, Crestrib Morning-glory
- Ipomoea cristulata, Trans-Pecos morning-glory
- Ipomoea hederacea, Ivyleaf Morning-glory
- Ipomoea longifolia, Pinkthroat Morning-glory
- Ipomoea ternifolia, Tripleleaf Morning-glory
- Ipomopsis aggregata, Skyrocket
- Ipomopsis longiflora, Flaxflowered Ipomopsis
- Ipomopsis multiflora, Manyflowered Ipomopsis
- Ipomopsis tenuituba, Slendertube Skyrocket
- Isocoma acradenia, Aalkali Goldenbush
- Isocoma pluriflora, Southern Goldenbush
- Isocoma rusbyi , Rusby's Goldenbush
- Isocoma tenuisecta, Burroweed
- Jatropha cuneata, Physicnut
- Jatropha macrorhiza, Ragged Nettlespurge
- Johnstonella angustifolia, (=Cryptantha), Panamint Cryptantha
- Juglans major, Arizona Walnut
- Juniperus californica, California Juniper
- Juniperus coahuilensis, Redberry Juniper
- Juniperus deppeana, Alligator Juniper
- Juniperus monosperma, Oneseed Juniper
- Juniperus osteosperma, Utah Juniper
- Janusia gracilis, Slender Janusia, see Cottsia gracilis
- Justicia californica, Chuparosa
- Kallstroemia grandiflora, Arizona Poppy
- Keckiella antirrhinoides, Snapdragon Penstemon
- Krameria bicolor, White Ratany
- Krameria erecta, Littleleaf Ratany
- Laennecia coulteri, Coulter's Horseweed
- Lactuca serriola, Prickly Lettuce
- Lamium amplexicaule, Henbit
- Larrea tridentata, Creosote Bush
- Lasthenia californica, California Goldfields
- Layia glandulosa, Tidytips
- Loeseliastrum schottii, Schott's Calico
- Lepidium alyssoides, Mesa Pepperwort
- Leptosiphon aureus, Golden Desert-trumpets
- Lesquerella purpurea, Purple Bladderpod
- Linanthus bigelovii, Bigelow's linanthus
- Linanthus demissus, Desertsnow
- Linaria vulgaris, Yellow Toadflax
- Linum lewisii, Lewis Flax
- Lippia graveolens, Mexican Oregano
- Lithospermum cobrense, Smooththroat Stoneseed
- Logfia arizonica, Arizona Cottonrose
- Lomatium nevadense, Nevada Biscuitroot
- Lonicera albiflora, Western White Honeysuckle
- Lonicera arizonica, Arizona Honeysuckle
- Lonicera interrupta, Chaparral Honeysuckle
- Lotus corniculatus, Bird's Foot Trefoil
- Lotus humistratus, Foothill Deervetch
- Lotus rigidus, Shrubby Deervetch
- Lotus salsuginosus, Coastal Bird's-foot Trefoil
- Lotus wrightii, Wright's Deervetch
- Ludwigia peploides, Floating Primrose Willow
- Lupinus arizonicus, Arizona Lupine
- Lupinus concinnus, Bajada Lupine
- Lupinus hillii, Hill's Lupine
- Lupinus sparsiflorus, Coulter's Lupine
- Lycium exsertum, Arizona Desert-thorn
- Lycium fremontii, Fremont's Thornbush
- Lycium macrodon, Desert Wolfberry
- Machaeranthera tagetina, Mesa Tansyaster
- Machaeranthera tanacetifolia, Tansy Aster
- Macromeria viridiflora, Giant-trumpets
- Macroptilium gibbosifolium, Variableleaf Bushbean
- Malacothamnus fasciculatus, Bush Mallow
- Malacothrix glabrata, Smooth Desertdandelion
- Malva neglecta, Common Mallow
- Malva parviflora, Cheeseweed Mallow
- Malvella sagittifolia, Arrowleaf Mallow
- Mammillaria grahamii, Graham's Nipple Cactus
- Marah gilensis, Wild Cucumber
- Marina parryi, Parry's False Prairie-clover
- Marrubium vulgare, White Horehound
- Matelea parvifolia, Spearleaf
- Matelea producta, Texas Milkvine
- Matthiola parviflora, Stock
- Maurandella antirrhiniflora, Climbing Snapdragon
- Maurandya antirrhiniflora - see Maurandella antirrhiniflora
- Medicago polymorpha, Burclover
- Medicago sativa, Alfalfa
- Melampodium leucanthum, Plains Blackfoot Daisy
- Melampodium strigosum, Shaggy Blackfoot
- Melilotus indicus, Annual Yellow Sweetclover
- Melilotus officinalis, Yellow Sweetclover
- Melilotus officinalis, Yellow Sweetclover
- Melochia tomentosa, Teabush
- Menodora scabra, Rough Menodora
- Mentzelia albicaulis, Whitestem Blazingstar
- Mentzelia multiflora, Adonis Blazingstar
- Mentzelia veatchiana, Veatch's Blazingstar
- Matelea parvifolia, Spearleaf
- Matelea producta, Texas Milkvine
- Microseris lindleyi; see Uropappus lindleyi, Lindley’s Silverpuffs
- Microsteris gracilis, see, Phlox gracilis
- Milla biflora, Mexican Star
- Mimetanthe pilosa, False Monkeyflower
- Mimosa aculeaticarpa biuncifera, Catclaw Mimosa
- Mimosa dysocarpa, Velvetpod Mimosa
- Mimosa roemeriana, Roemer's Mimosa
- Mimulus guttatus, Seep Monkeyflower
- Minuartia douglasii, Douglas’ Stitchwort
- Mirabilis coccinea, Scarlet Four O'clock
- Mirabilis laevis, Desert Wishbone-bush
- Mirabilis multiflora, Colorado Four O'clock
- Mirabilis pumila, Dwarf Four O'clock
- Modiola caroliniana, Carolina Bristlemallow
- Mohavea breviflora, Golden Desert-snapdragon
- Monarda citriodora, Lemon Beebalm
- Monolepis nuttalliana, Nuttall's Povertyweed
- Monoptilon bellidiforme, Mojave Desertstar
- Monoptilon bellioides, Daisy Desertstar
- Morus microphylla, Texas Mulberry
- [N]
- Nama demissum, Purplemat
- Nama hispidum, Bristly Nama
- Nicotiana glauca, Tree Tobacco
- Nicotiana obtusifolia, Desert Tobacco
- Nolina bigelovii, Bigelow's Beargrass
- Nolina microcarpa, Beargrass
- Nothoscordum bivalve, Crow Poison
[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]
[O] ↵ Return to top - Oenothera caespitosa, Tufted Evening Primrose
- Oenothera californica, California Suncup
- Oenothera coronopifolia, Crownleaf Evening Primrose
- Oenothera curtiflora, (Gaura parviflora) Velvetweed
- Oenothera deltoides, Dune Evening Primrose
- Oenothera elata, Hooker's Evening Primrose
- Oenothera primiveris, Large Yellow Desert Primrose
- Oenothera rosea (=Gaura epilobia), Rose Evening Primrose
- Oenothera speciosa, Mexican Evening Primrose
- Oenothera suffrutescens (Gaura coccinea), Scarlet Beeblossom
- Olneya tesota, Desert Ironwood
- Oncosiphon piluliferum, Globe Chamomile
- Opuntia basilaris, Beavertail Pricklypear
- Opuntia engelmannii, Cactus Apple
- Opuntia macrocentra, Long-spined Prickly Pear
- Opuntia macrorhiza, Twistspine Pricklypear
- Opuntia phaeacantha, Tulip Pricklypear
- Opuntia santa-rita, Santa Rita Pricklypear
- Orobanche cooperi, Desert Broomrape
- Orthocarpus purpurascens, Indian Paintbrush (see Castilleja exserted)
- Oxalis alpina, Alpine Woodsorrel
- Oxalis corniculata, Creeping Woodsorrel
- Oxalis stricta, Common Yellow Oxalis
- Pachycormus discolor, Baja Elephant Tree
- Packera neomexicana, New Mexico Groundsel
- Packera quercetorum, Oak Creek Ragwort
- Palafoxia arida var. arida, Desert Palafox
- Palafoxia arida var. gigantea, Spanish Needles
- Parkinsonia aculeata, Jerusalem Thorn
- Parkinsonia florida, Blue Paloverde
- Parkinsonia microphylla, Yellow Paloverde
- Passiflora arizonica, Arizona Passionflower
- Passiflora mexicana, Mexican Passionflower
- Pavonia lasiopetala, Rock Rose
- Pectis filipes, Five-bract Cinchweed
- Pectis papposa, Manybristle Chinchweed
- Pectocarya recurvata, Curvenut Combseed
- Pedaliaceae or Pedalium Family
- Pediomelum mephiticum, Skunktop
- Peniocereus johnstonii, Matraca, Pitayita, Saramatraca
- Penstemon ambiguus, Gilia Beardtongue
- Penstemon barbatus, Beardlip Penstemon
- Penstemon clutei, Sunset Crater Beardtongue
- Penstemon dasyphyllus, Cochise Beardtongue
- Penstemon eatonii, Firecracker Penstemon
- Penstemon linarioides, Toadflax Penstemon
- Penstemon palmeri, Palmer Penstemon
- Penstemon parryi, Parry's Beardtongue
- Penstemon pseudospectabilis, Desert Penstemon
- Penstemon subulatus, Hackberry Beardtongue
- Penstemon superbus, Superb Beardtongue
- Penstemon triflorus, Heller's Beardtongue
- Penstemon virgatus, Upright Blue Beardtongue
- Pentzia incana, African Sheepbush
- Peritoma arborea, Bladderpod (=Cleome isomeris)
- Perityle emoryi, Emory's Rockdaisy
- Persicaria lapathifolia, Curlytop Knotweed
- Peucephyllum schottii, Schott's Pygmycedar
- Phacelia campanularia, Desert Bluebells
- Phacelia crenulata, Cleftleaf Wildheliotrope
- Phacelia fremontii, Fremont's Phacelia
- Phacelia distans, Distant Phacelia
- Phacelia heterophylla, Varileaf Phacelia
- Phacelia magellanica, Kaweah River Scorpion-weed
- Phacelia tanacetifolia, Lacy Phaceliav
- Phaseolus angustissimus, Slimleaf Bean
- Phaseolus filiformis, Slimjim Bean
- Platanus wrightii, Arizona Sycamore
- Phlox (Microsteris) gracilis, Slender Phlox
- Phlox speciosa, Showy Phlox
- Phlox tenuifolia, Santa Catalina Mountain Phlox
- Pholistoma auritum, Blue Fiestaflower
- Phoradendron juniperinum, Juniper Mistletoe
- Phyla nodiflora, Turkey Tangle Fogfruit
- Physalis acutifolia, Sharpleaf Groundcherry
- Physalis crassifolia, Yellow Nightshade Groundcherry
- Physalis hederifolia, Ivyleaf Groundcherry
- Physalis pubescens, Ground Cherry
- Physaria gordonii, Gordons' Bladderpod
- Plagiobothrys arizonicus, Arizona Popcornflower
- Plantago major, Common Plantain
- Plantago ovata, Desert Indianwheat
- Plantago patagonica, Woolly Plantain
- Platanus wrightii, Arizona Sycamore Tree
- Platystemon californicus, Creamcups
- Pluchea sericea, Arrowweed
- Polanisia dodecandra, Redwhisker Clammyweed
- Polygonum argyrocoleon, Silversheath Knotweed
- Populus fremontii, Fremont Cottonwood
- Porophyllum gracile, Slender Poreleaf
- Porophyllum ruderale, Yerba Porosa
- Portulaca oleracea, Common Purslane
- Portulaca suffrutescens, Shrubby Purslane
- Proboscidea althaeifolia, Desert Unicorn-plant
- Proboscidea parviflora, Doubleclaw
- Prosopis glandulosa, Honey Mesquite
- Prosopis glandulosa var. torreyana, Western Honey Mesquite
- Prosopis pubescens, Screw Bean Mesquite
- Prosopis velutina, Velvet Mesquite
- Psathyrotes ramosissima, Velvet Turtleback
- Psilostrophe cooperi, Whitestem Paperflower
- Psorothamnus schottii, Schott's Dalea
- Psorothamnus spinosus, Smoketree
- Ptelea trifoliata, Common Hoptree
- Purshia stansburiana, Cliffrose
- Quercus emoryi, Emory Oak
- Quercus gambelii, Gambel Oak
- Quercus turbinella, Sonoran Scrub Oak
- Quincula lobata, Purple Ground Cherry
- Rafinesquia_californica, California Chicory
- Rafinesquia neomexicana, Desert Chicory
- Ratibida columnifera, Upright Prairie Coneflower
- Rhamnus crocea, Redberry Buckthorn
- Rhamnus ilicifolia, Holly-leaf Buckthorn
- Rhynchosida physocalyx, Buffpetal
- Rhus kearneyi, Kearney's Sumac
- Rhus microphylla, Littleleaf Sumac
- Rhus ovata, Sugar Sumac
- Rhus trilobata var. trilobata, Skunkbush Sumac
- Ricinus communis, Castorbean
- Rivina humilis, Rougeplant
- Robinia neomexicana, New Mexico Locust
- Rosa woodsii, Woods Rose
- Rudbeckia laciniata, Cutleaf Coneflower
- Romney coulteri, Coulter's Matilija Poppy
- Rubus leucodermis, Whitebark Raspberry
- Rubus neomexicanus, New Mexico Raspberry
- Sairocarpus nuttallianus, Violet Snapdragon
- Salazaria mexicana, Bladder Sage - See Scutellaria mexicana
- Salix amygdaloides, Peach Tree Willow
- Salix exigua, Narrowleaf Willow
- Salix gooddingii, Goodding's Willow
- Salsola tragus, Prickly Russian Thistle
- Salvia columbariae, Chia
- Salvia greggii, Autumn Sage
- Salvia subincisa, Sawtooth Sage
- Sambucus nigra ssp. cerulea, Blue Elderberry
- Sanvitalia abertii, Abert's Creeping Zinnia
- Sapindus saponaria, Western Soapberry
- Sarcostemma cynanchoides, Fringed Twinevine
- Scabrethia scabra, Badlands Mule-Ears
- Scutellaria mexicana, Bladder Sage
- Scutellaria platyphylla, Mexican Skullcap
- Senecio flaccidus, Threadleaf Groundsel
- Senecio flaccidus var. flaccidus, Threadleaf Ragwort
- Senecio flaccidus var. monoensis, Smooth Threadleaf Ragwort
- Senecio lemmonii, Lemmon's Ragwort
- Senecio vulgaris, Common Groundsel
- Senna bauhinioides, Twinleaf Senna
- Senna covesii, Coves' Cassia
- Senna hirsuta v glaberrima, Woolly Senna
- Senna purpusii, Baja California Senna
- Sesbania herbacea, Bigpod Sesbania
- Sida abutifolia, Spreading Fanpetals
- Silybum marianum, Blessed Milk Thistle
- Simmondsia chinensis, Jojoba
- Sisymbrium irio, London Rocket
- Solanum americanum, American Black Nightshade
- Solanum elaeagnifolium, Silverleaf Nightshade
- Solanum fendleri, Fendler's Horsenettle
- Solanum heterodoxum, Melon Leaf Nightshade
- Solanum hindsianum, Hinds Nightshade
- Solanum rostratum, Buffalobur Nightshade
- Solanum xanti, Purple Nightshade
- Solidago missouriensis, Prairie Goldenrod
- Sonchus asper, Spiny Sowthistle
- Sonchus oleraceus, Common Sowthistle
- Sphaeralcea ambigua, Desert Globemallow
- Sphaeralcea coccinea, Scarlet Globemallow
- Sphaeralcea coulteri, Coulter's Globemallow
- Sphaeralcea fendleri, Fendler's Globemallow
- Sphaeralcea rusbyi, Rusby's Globemallow
- Stachys coccinea, Scarlet Hedgenettle
- Stemodia durantifolia, Whitewoolly Twintip
- Stephanomeria exigua, Small Wirelettuce
- Stephanomeria pauciflora, Brownplume Wirelettuce
- Stephanomeria tenuifolia, Narrowleaf Wirelettuce
- Symphyotrichum ericoides var. ericoides, White Heath Aster
- Tagetes lemmonii, Lemmon’s Marigold
- Tamarix chinensis, Chinese Saltcedar
- Taraxacum officinale, Common Dandelion
- Tecoma stans, Yellow Trumpet Bush
- Thamnosma montana, Turpentinebroom
- Thelesperma megapotamicum, Hopi Tea Greenthread
- Thelypodiopsis ambigua, Long Valley Tumblemustard
- Thelypodium wrightii, Wright's Thelypody
- Thermopsis divaricarpa, Spreadfruit Goldenbanner
- Tecoma stans, Yellow Trumpet Bush
- Thymophylla acerosa, Pricklyleaf Dogweed
- Thymophylla pentachaeta, Fiveneedle Pricklyleaf
- Thysanocarpus curvipes, Lacepod Mustard
- Tidestromia lanuginosa, Woolly Tidestromia
- Toxicodendron rydbergii, Western Poison Ivy
- Tragia nepetifolia, Catnip Noseburn
- Tragopogon dubius, Yellow Salsify
- Tradescantia occidentalis, Prairie Spiderwort
- Trianthema portulacastrum, Desert Horsepurslane
- Tribulus terrestris, Puncturevine
- Trichoptilium incisum, Yellowdome
- Trichostema arizonicum, Arizona Bluecurls
- Trifolium gracilentum, Pinpoint Clover
- Trifolium willdenovii, Tomcat Clover
- Trixis californica, American Threefold
- Typha domingensis, Southern Cattail
- Uropappus lindleyi, Lindley’s Silverpuffs
- Vachellia constricta, Whitethorn Acacia
- Verbascum thapsus, Common Mullein
- Verbena bracteata, Bigbract Verbena
- Verbesina encelioides, Golden Crownbeard
- Verbesina rothrockii, Rothrock's Crownbeard
- Veronica anagallis-aquatica, Water Speedwell
- Vicia americana, American Deervetch
- Viguiera stenoloba, Resinbush
- Vitex agnus-castus, Chaste Tree
- Vitis arizonica, Canyon Grape
- Xanthisma gracilis, Slender Goldenweed
- Xanthisma spinulosum, Spiny Goldenweed
- Xanthium strumarium, Rough Cocklebur
- Xanthocephalum gymnospermoides, San Pedro Matchweed
- Xylorhiza tortifolia, Mojave Woodyaster
- Yucca baccata, Banana Yucca
- Yucca brevifolia, Joshua Tree
- Yucca elata, Soaptree Yucca
- Yucca faxoniana, Spanish Bayonet
- Yucca rigida, Blue Yucca
- Yucca rostrata, Beaked Yucca
- Zeltnera arizonica, Arizona Centaury
- Zinnia acerosa, Desert Zinnia
- Zinnia grandiflora, Rocky Mountain Zinnia
- Zinnia peruviana, Peruvian zinnia
- Ziziphus obtusifolia, Lotebush
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