List of flora of the Sonoran Desert Region by common name

Acanthaceae[]

• Arizona foldwing (Dicliptera resupinata)
• (Justicia candicans)
• (Carlowrightia arizonica)
• (Ruellia peninsularis)
• beloperone (Justicia californica)
• black mangrove (Avicennia germinans)
• (Blechum pyramidatum)
• glush weed (Hygrophila costata)
• (Tetramerium nervosum)
• (Henrya insularis)
• (Elytraria imbricata)
• (Ruellia californica)
• siphonoglossa (Justicia longii)
• (Justicia sonorae)
• (Dyschoriste decumbens)
• (Anisacanthus thurberi)
• violet wild petunia (Ruellia nudiflora)
• (Holographis virgata)

Achatocarpaceae[]

• devilqueen (Phaulothamnus spinescens)

Adoxaceae[]

• blue elderberry (Sambucus nigra)

Aizoaceae[]

• common iceplant (Mesembryanthemum crystallinum)
• desert horsepurslane (Trianthema portulacastrum)
• Hottentot fig (Carpobrotus edulis)
• shoreline seapurslane (Sesuvium portulacastrum)
• slenderleaf iceplant (Mesembryanthemum nodiflorum)
• verrucose seapurslane (Sesuvium verrucosum)

Alismataceae[]

• American water plantain (Alisma subcordatum)
• arumleaf arrowhead (Sagittaria cuneata)
• broadleaf arrowhead (Sagittaria latifolia)
• giant arrowhead (Sagittaria montevidensis)
• longbarb arrowhead (Sagittaria longiloba)
• upright burhead (Echinodorus berteroi)
• water poppy (Hydrocleys nymphoides)
• yellow velvetleaf (Limnocharis flava)

Amaranthaceae[]

• (Froelichia arizonica)
• Australian saltbush (Atriplex semibaccata)
• (Atriplex barclayana)
• big saltbush (Atriplex lentiformis)
• California saltbush (Atriplex californica)
• carelessweed (Amaranthus palmeri)
• cattle saltbush (Atriplex polycarpa)
• Davidson's saltbush (Atriplex pacifica)
• desert goosefoot (Chenopodium pratericola)
• desertholly (Atriplex hymenelytra)
• dwarf saltwort (Salicornia bigelovii)
• estuary seablite (Suaeda esteroa)
• fetid goosefoot (Chenopodium graveolens)
• fivehorn smotherweed (Bassia hyssopifolia)
• fourwing saltbush (Atriplex canescens)
• fringed amaranth (Amaranthus fimbriatus)
• globe amaranth (Gomphrena globosa)
• iodinebush (Allenrolfea occidentalis)
• lambsquarters (Chenopodium album)
• mat amaranth (Amaranthus blitoides)
• Mexican tea (Dysphania ambrosioides)
• Mojave seablite (Suaeda moquini)
• nettleleaf goosefoot (Chenopodium murale)
• (Chenopodium neomexicanum)
• Nuttall's povertyweed (Monolepis nuttalliana)
• old man saltbush (Atriplex nummularia)
• (Gomphrena nitida)
• pickleweed (Salicornia virginica)
• Powell's amaranth (Amaranthus powellii)
• prince's feather (Amaranthus hypochondriacus)
• prostrate pigweed (Amaranthus albus)
• red amaranth (Amaranthus cruentus)
• Russian thistle (Kali tragus)
• shadscale (Atriplex confertifolia)
• slim amaranth (Amaranthus hybridus)
• Sonoran globe amaranth (Gomphrena sonorae)
• spiny hopsage (Grayia spinosa)
• Standley's bloodleaf (Iresine heterophylla)
• (Froelichia interrupta)
• washerwoman (Alternanthera caracasana)
• Watson's amaranth (Amaranthus watsonii)
• (Chenopodium watsonii)
• wheelscale saltbush (Atriplex elegans)
• winterfat (Krascheninnikovia lanata)
• woolly seablite (Suaeda taxifolia)
• woolly tidestromia (Tidestromia lanuginosa)
• (Atriplex wrightii)

Amaryllidaceae[]

• cebollín (Hymenocallis pimana)
• (Zephyranthes longifolia)
• crowpoison (Nothoscordum bivalve)
• Geyer's onion (Allium geyeri)
• (Allium glandulosum)
• (Allium kunthii)
• largeflower onion (Allium macropetalum)
• Mexicali onion (Allium peninsulare)
• spider lily (Hymenocallis sonorensis)
• Texas false garlic (Nothoscordum texanum)

Anacardiaceae[]

• African sumac (Rhus lancea)
• (Rhus terebinthifolia)
• Baja elephant tree (Pachycormus discolor)
• ciruelo (Cyrtocarpa edulis)
• evergreen sumac (Rhus virens)
• fragrant sumac (Rhus aromatica)
• Kearney's sumac (Rhus kearneyi)
• laurel sumac (Malosma laurina)
• lemonadeberry (Rhus integrifolia)
• littleleaf sumac (Rhus microphylla)
• mango (Mangifera indica)
• Peruvian pepper tree (Schinus molle)
• (Rhus lentii)
• poison ivy (Rhus radicans)
• purple mondin (Spondias purpurea)
• smooth sumac (Rhus glabra)
• sugarbush (Rhus ovata)

Apiaceae[]

• (Cymopterus lemmonii)
• American wild carrot (Daucus pusillus)
• (Eryngium sparganophyllum)
• (Spermolepis echinata)
• chervil (Anthriscus cerefolium)
• (Eryngium lemmonii)
• coriander (Coriandrum sativum)
• cow parsnip (Heracleum maximum)
• culantrillo (Daucus montanus)
• dill (Anethum graveolens)
• false carrot (Yabea microcarpa)
• fennel (Foeniculum vulgare)
• (Eryngium nasturtiifolium)
• hoary bowlesia (Bowlesia incana)
• (Eryngium phyteumae)
• large bullwort (Ammi majus)
• marsh parsley (Cyclospermum leptophyllum)
• (Tauschia edulis)
• (Conioselinum mexicanum)
• Schaffner's grasswort (Lilaeopsis schaffneriana)
• southern umbrellawort (Tauschia arguta)
• water-hemlock (Cicuta douglasii)
• (Ammoselinum giganteum)
• (Eryngium heterophyllum)

Apocynaceae[]

• (Amsonia grandiflora)
• Arizona milkvine (Gonolobus arizonicus)
• Arizona milkweed (Asclepias angustifolia)
• Arizona swallow-wort (Metastelma arizonicum)
• bloodflower milkweed (Asclepias curassavica)
• (Asclepias brachystephana)
• California milkweed (Asclepias californica)
• (Vallesia laciniata)
• (Haplophyton cimicidum)
• (Mandevilla hypoleuca)
• desert milkweed (Asclepias erosa)
• fringed twinevine (Funastrum cynanchoides)
• (Mandevilla foliosa)
• horsetail milkweed (Asclepias subverticillata)
• (Macrosiphonia brachysiphon)
• Kearney's bluestar (Amsonia kearneyana)
• (Asclepias lemmonii)
• (Asclepias hypoleuca)
• (Cynanchum ligulatum)
• Mojave milkweed (Asclepias nyctaginifolia)
• (Mandevilla nacapulensis)
• narrowleaf milkweed (Asclepias fascicularis)
• (Asclepias glaucescens)
• oleander (Nerium oleander)
• (Amsonia palmeri)
• pineneedle milkweed (Asclepias linaria)
• (Mandevilla lanuginosa)
• plumeria (Plumeria rubra)
• rubber vine (Cryptostegia grandiflora)
• rush milkweed (Asclepias subulata)
• showy milkweed (Asclepias speciosa)
• (Asclepias quinquedentata)
• smooth vallesia (Vallesia glabra)
• (Matelea cordifolia)
• spearleaf (Matelea parvifolia)
• (Matelea producta)
• (Asclepias nummularia)
• (Funastrum crispum)
• whitestem milkweed (Asclepias albicans)
• white twinevine (Funastrum clausum)
• (Metastelma mexicanum)
• woolly bluestar (Amsonia tomentosa)
• woollypod milkweed (Asclepias eriocarpa)
• yellow oleander (Thevetia peruviana)
• zizotes milkweed (Asclepias oenotheroides)

Aquifoliaceae[]

• (Ilex rubra)

Araceae[]

• common duckweed (Lemna minor)
• least duckweed (Lemna minuta)
• lesser duckweed (Lemna aequinoctialis)
• common duckmeat (Spirodela polyrrhiza)

Araliaceae[]

• Algerian ivy (Hedera canariensis)
• (Dendropanax arboreus)
• (Aralia humilis)
• floating marshpennywort (Hydrocotyle ranunculoides)
• manyflower marshpennywort (Hydrocotyle umbellata)
• (Oreopanax peltatum)
• (Hydrocotyle pusilla)
• whorled marshpennywort (Hydrocotyle prolifera)

Arecaceae[]

• (Brahea dulcis)
• (Brahea brandegeei)
• blue hesper palm (Brahea armata)
• California fan palm (Washingtonia filifera)
• Mexican fan palm (Washingtonia robusta)
• date palm (Phoenix dactylifera)
• Sinaloa hesper palm (Brahea aculeata)
• Sonoran blue palm (Brahea nitida)
• Sonoran palmetto (Sabal uresana)

Aristolochiaceae[]

• calico flower (Aristolochia littoralis)
• (Aristolochia taliscana)
• (Aristolochia quercetorum)
• (Aristolochia brevipes)
• Watson's Dutchman's pipe (Aristolochia watsonii)

Asparagaceae[]

• American century plant (Agave americana)
• Arizona agave (Agave arizonica)
• (Echeandia ramosissima)
• banana yucca (Yucca baccata)
• Bigelow's nolina (Nolina bigelovii)
• bluedicks (Dipterostemon capitatus)
• (Agave multifilifera)
• chaparral yucca (Hesperoyucca whipplei)
• common sotol (Dasylirion wheeleri)
• cowhorn agave (Agave bovicornuta)
• datilillo (Agave datylio)
• Dehesa beargrass (Nolina interrata)
• desert agave (Agave deserti)
• desert lily (Hesperocallis undulata)
• (Agave chrysoglossa)
• goldenflower century plant (Agave chrysantha)
• Ithuriel's spear (Triteleia laxa)
• (Agave jaiboli)
• Joshua tree (Yucca brevifolia)
• large-flowered yucca (Yucca grandiflora)
• McKelvey agave (Agave mckelveyana)
• (Agave colorata)
• (Agave felgeri)
• Mexican star (Milla biflora)
• Mojave yucca (Yucca schidigera)
• mountain yucca (Yucca schottii)
• Murphey's century plant (Agave murpheyi)
• narrowleaf agave (Agave angustifolia)
• Navajo yucca (Yucca baileyi)
• Nelson's beargrass (Nolina nelsonii)
• (Hesperaloe nocturna)
• (Agave ocahui)
• octopus agave (Agave vilmoriniana)
• Palmer's century plant (Agave palmeri)
• (Echeandia palmeri)
• Palmer's Bajalily (Triteleiopsis palmeri)
• (Nolina palmeri)
• Parry's agave (Agave parryi)
• Parry's beargrass (Nolina parryi)
• pink funnel lily (Androstephium breviflorum)
• sacahuista (Nolina microcarpa)
• Schott's century plant (Agave schottii)
• Shaw's agave (Agave shawii)
• Sierra Madre yucca (Yucca madrensis)
• (Nolina parviflora)
• (Nolina texana)
• Tonto Basin agave (Agave delamateri)
• (Echeandia flavescens)
• Toumey's century plant (Agave toumeyana)
• (Nolina matapensis)
• tree yucca (Yucca valida)
• tuberose-flowered agave (Agave polianthiflora)
• Utah agave (Agave utahensis)
• (Agave zebra)

Asphodelaceae[]

• Aloe vera (Aloe vera)
• (Kniphofia linearifolia)
• onionweed (Asphodelus fistulosus)

Aspleniaceae[]

• blackstem spleenwort (Asplenium resiliens)
• (Asplenium dalhousiae)
• (Asplenium pumilum)
• (Asplenium exiguum
• (Asplenium palmeri)
• (Asplenium monanthes)

Asteraceae[]

• Abert's creeping zinnia (Sanvitalia abertii)
• African sheepbush (Pentzia incana)
• alkali marsh aster (Almutaster pauciflorus)
• American everlasting (Gamochaeta americana)
• American tarwort (Flourensia cernua)
• American threefold (Trixis californica)
• (Stevia micrantha)
• annual monsterwort (Parthenice mollis)
• Apache beggarticks (Bidens ferulaefolia)
• Apache plant (Guardiola platyphylla)
• arid tansyaster (Machaeranthera arida)
• arid throne fleabane (Erigeron arisolius)
• Arizona baccharis (Baccharis thesioides)
• Arizona beggarticks (Bidens aurea)
• (Melampodium longicorne)
• Arizona blanketflower (Gaillardia arizonica)
• (Pseudognaphalium arizonicum)
• (Filago arizonica)
• Arizona snakeweed (Gutierrezia arizonica)
• (Tithonia thurberi)
• Arizona thistle (Cirsium arizonicum)
• arrowweed (Pluchea sericea)
• asthmaweed (Conyza bonariensis)
• Aztec marigold (Tagetes erecta)
• (Encelia ventorum)
• beardless cinchweed (Pectis imberbis)
• betonyleaf brickellbush (Brickellia betonicifolia)
• Bigelow's beggarticks (Bidens bigelovii)
• Bigelow's bristlehead (Carphochaete bigelovii)
• blessed milkthistle (Silybum marianum)
• brightwhite (Prenanthella exigua)
• brittlebush (Encelia farinosa)
• broom snakeweed (Gutierrezia sarothrae)
• brownfoot (Acourtia wrightii)
• brownplume wirelettuce (Stephanomeria pauciflora)
• brownturbans (Malperia tenuis)
• burrobush (Ambrosia salsola)
• burroweed (Ambrosia dumosa)
• button brittlebush (Encelia frutescens)
• California brittlebush (Encelia californica)
• California chicory (Rafinesquia californica)
• (Filago californica)
• California goldfields (Lasthenia californica)
• (Perityle californica)
• camphorweed (Heterotheca subaxillaris)
• Canadian horseweed (Conyza canadensis)
• canyon ragweed (Ambrosia ambrosioides)
• (Dimorphotheca tragus)
• changing fleabane (Erigeron versicolor)
• chaparral fleabane (Erigeron oreophilus)
• Chihuahuan fleabane (Erigeron velutipes)
• chicory (Cichorium intybus)
• chicoryleaf wirelettuce (Stephanomeria cichoriacea)
• Cleveland's desertdandelion (Malacothrix clevelandii)
• coastal tidy tips (Layia platyglossa)
• (Laennecia eriophylla)
• common goldenbush (Isocoma coronopifolia)
• common sowthistle (Sonchus oleraceus)
• common sunflower (Helianthus annuus)
• common yarrow (Achillea millefolium)
• common zinnia (Zinnia elegans)
• Cooper's dogweed (Adenophyllum cooperi)
• Cooper's goldenbush (Ericameria cooperi)
• (Pseudognaphalium stramineum)
• Coulter's brickellbush (Brickellia coulteri)
• (Pectis coulteri)
• (Laennecia coulteri)
• crowndaisy (Glebionis coronaria)
• Cuman ragweed (Ambrosia psilostachya)
• cure for all (Pluchea carolinensis)
• cutleaf ironplant (Xanthisma spinulosum)
• daisy desertstar (Monoptilon bellidiforme)
• desert baccharis (Baccharis sergiloides)
• desertbroom (Baccharis sarothroides)
• desert coreopsis (Coreopsis bigelovii)
• desert cudweed (Gamochaeta stagnalis)
• (Psacalium decompositum)
• desert marigold (Baileya multiradiata)
• desert palafox (Palafoxia arida)
• desert twinbugs (Dicoria canescens)
• desert zinnia (Zinnia acerosa)
• (Lagascea decipiens)
• dwarf coyote brush (Baccharis pilularis)
• dwarf desertpeony (Acourtia nana)
• (Filago depressa)
• earleaf brickellbush (Brickellia amplexicaulis)
• eastern annual saltmarsh aster (Symphyotrichum subulatum)
• Emory's baccharis (Baccharis salicina)
• Emory's rockdaisy (Perityle emoryi)
• (Acourtia dieringeri)
• Esteve's pincushion (Chaenactis stevioides)
• everlasting neststraw (Stylocline gnaphaloides)
• false boneset (Brickellia eupatorioides)
• false daisy (Eclipta prostrata)
• (Verbesina felgeri)
• (Malacothrix fendleri)
• fewflower beggarticks (Bidens leptocephala)
• Flagstaff ragwort (Senecio actinella)
• flatspine burr ragweed (Ambrosia acanthicarpa)
• (Ageratum corymbosum)
• fragrant snakeroot (Ageratina herbacea)
• Frémont pincushion (Chaenactis fremontii)
• (Perityle ciliata)
• (Sclerocarpus spathulatus)
• gallant soldier (Galinsoga parviflora)
• garden cosmos (Cosmos bipinnatus)
• glandular Cape marigold (Dimorphotheca sinuata)
• golden crownbeard (Verbesina encelioides)
• goldenfleece (Ericameria arborescens)
• grassleaf lettuce (Lactuca graminifolia)
• green rabbitbrush (Ericameria teretifolia)
• Guadalupe Island rockdaisy (Perityle incana)
• guayule (Parthenium argentatum)
• gumhead (Gymnosperma glutinosum)
• hairy beggarticks (Bidens pilosa)
• hairy leafcup (Smallanthus uvedalius)
• (Roldana hartwegii)
• hoary tansyaster (Machaeranthera canescens)
• hollyleaf burr ragweed (Ambrosia ilicifolia)
• hollyleaf bursage (Ambrosia eriocentra)
• Hopi tea greenthread (Thelesperma megapotamicum)
• Irish lace (Tagetes filifolia)
• Jersey cudweed (Pseudognaphalium luteoalbum)
• Kellogg's tarweed (Hemizonia kelloggii)
• lavender cotton (Santolina chamaecyparissus)
• laxflower (Baileya pauciradiata)
• (Laennecia sophiifolia)
• Lemmon's beggarticks (Bidens lemmonii)
• Lemmon's hawkweed (Hieracium crepidispermum)
• Lemmon's marigold (Tagetes lemmonii)
• (Senecio lemmonii)
• (Perityle lemmonii)
• Lemmon's snakeroot (Ageratina lemmonii)
• licorice marigold (Tagetes micrantha)
• Lindley's silver puffs (Uropappus lindleyi)
• lobed fleabane (Erigeron lobatus)
• (Verbesina longifolia)
• longleaf false goldeneye (Heliomeris longifolia)
• (Pseudognaphalium macounii)
• Maltese star-thistle (Centaurea melitensis)
• manybristle cinchweed (Pectis papposa)
• mariola (Parthenium incanum)
• Maximilian sunflower (Helianthus maximiliani)
• (Senecio riomayensis)
• (Machaeranthera tagetina)
• (Pluchea salicifolia)
• (Ratibida mexicana)
• Mexican flame vine (Pseudogynoxys chenopodioides)
• (Psilactis gentryi)
• Mexican tarragon (Tagetes lucida)
• (Tithonia fruticosa)
• Mojave cottonthorn (Tetradymia stenolepis)
• Mojave desertstar (Monoptilon bellioides)
• mountain dahlia (Dahlia coccinea)
• mountain oxeye (Heliopsis parvifolia)
• (Senecio parryi)
• mulefat (Baccharis salicifolia)
• narrowleaf goldenbush (Ericameria linearifolia)
• narrowleaf zinnia (Zinnia angustifolia)
• netvein goldeneye (Bahiopsis reticulata)
• New Mexico fleabane (Erigeron neomexicanus)
• (Packera neomexicana)
• New Mexico plumeseed (Rafinesquia neomexicana)
• New Mexico thistle (Cirsium neomexicanum)
• orange sneezeweed (Hymenoxys hoopesii)
• owl's crown (Gamochaeta sphacelata)
• Palmer's umbrella thoroughwort (Koanophyllon palmeri)
• palmleaf thoroughwort (Conoclinium greggii)
• parachute plant (Atrichoseris platyphylla)
• Parish goldeneye (Viguiera parishii)
• Peruvian zinnia (Zinnia peruviana)
• pineappleweed (Matricaria discoidea)
• (Laennecia schiedeana)
• pinnate false threadleaf (Schkuhria pinnata)
• plains blackfoot (Melampodium leucanthum)
• plains fleabane (Erigeron modestus)
• plumeweed (Carminatia tenuiflora)
• Plummer's candyleaf (Stevia plummerae)
• (Adenophyllum porophyllum)
• prairie sagewort (Artemisia frigida)
• prairie sunflower (Helianthus petiolaris)
• (Thymophylla acerosa)
• prickly lettuce (Lactuca serriola)
• Pringle's brickellbush (Brickellia pringlei)
• (Pseudognaphalium pringlei)
• Pringle's hawkweed (Hieracium pringlei)
• Pringle's woolly sunflower (Eriophyllum pringlei)
• ragged marsh-elder (Hedosyne ambrosiifolia)
• resinleaf brickellbush (Brickellia baccharidea)
• Rocky Mountain beggarticks (Bidens heterosperma)
• Rocky Mountain zinnia (Zinnia grandiflora)
• romero macho (Pectis linifolia)
• rose heath (Leucelene ericoides)
• (Centaurea rothrockii)
• Rothrock's snakeroot (Ageratina rothrockii)
• (Melampodium sericeum)
• rough cocklebur (Xanthium strumarium)
• rubber rabbitbrush (Ericameria nauseosa)
• running fleabane (Erigeron tracyi)
• Rusby's cinchweed (Pectis rusbyi)
• Rusby's hawkweed (Hieracium abscissum)
• Rutter's false goldenaster (Heterotheca rutteri)
• safflower (Carthamus tinctorius)
• San Diego sunflower (Bahiopsis laciniata)
• San Diego wirelettuce (Stephanomeria diegensis)
• (Lasianthaea podocephala)
• Santa Maria feverfew (Parthenium hysterophorus)
• Santa Rita Mountain aster (Symphyotrichum potosinum)
• Santa Rita snakeroot (Ageratina paupercula)
• (Stevia serrata)
• scalebud (Anisocoma acaulis)
• scepterbearing fleabane (Erigeron sceptrifer)
• Schott's pygmycedar (Peucephyllum schottii)
• Seeman's sunbonnets (Leibnitzia lyrata)
• (Melampodium strigosum)
• shaggy soldier (Galinsoga quadriradiata)
• shortleaf baccharis (Baccharis brachyphylla)
• (Perityle microglossa)
• showy sunflower (Helianthus niveus)
• shrine jimmyweed (Isocoma tenuisecta)
• shrubby thoroughwort (Koanophyllon solidaginifolium)
• Siam weed (Chromolaena odorata)
• singlewhorl burrobrush (Hymenoclea monogyra)
• slender poreleaf (Porophyllum gracile)
• slimleaf bursage (Ambrosia confertiflora)
• slimlobe beggarticks (Bidens tenuisecta)
• smallflower desert-chicory (Pyrrhopappus pauciflorus)
• (Machaeranthera parviflora)
• small wirelettuce (Stephanomeria exigua)
• smooth beggarticks (Bidens laevis)
• smooth desertdandelion (Malacothrix glabrata)
• snake's head (Malacothrix coulteri)
• Sonoran brickellbush (Brickellia simplex)
• Sonoran bursage (Ambrosia cordifolia)
• Sonoran cinchweed (Pectis cylindrica)
• (Malacothrix sonorae)
• (Stylocline sonorensis)
• (Thymophylla concinna)
• Sonoran thoroughwort (Fleischmannia sonorae)
• (Symphyotrichum divaricatum)
• southern goldenbush (Isocoma pluriflora)
• southwestern cosmos (Cosmos parviflorus)
• Spanish needles (Bidens alba)
• spearleaf brickellbush (Brickellia atractyloides)
• spineless horsebrush (Tetradymia canescens)
• spiny chloracantha (Chloracantha spinosa)
• spiny sowthistle (Sonchus asper)
• spoonleaf purple everlasting (Gamochaeta purpurea)
• spreading cinchweed (Pectis prostrata)
• spreading fleabane (Erigeron divergens)
• spring pygmy-cudweed (Diaperia verna)
• Stebbins' desertdandelion (Malacothrix stebbinsii)
• stemless four-nerve daisy (Tetraneuris acaulis)
• sticky brittlebush (Encelia resinifera)
• stinking brickellbush (Brickellia rusbyi)
• straggler daisy (Calyptocarpus vialis)
• sulphur cosmos (Cosmos sulphureus)
• sweetbush (Bebbia juncea)
• Tahoka daisy (Machaeranthera tanacetifolia)
• tarragon (Artemisia dracunculus)
• tasselflower brickellbush (Brickellia grandiflora)
• Texas blueweed (Helianthus ciliaris)
• threadleaf ragwort (Senecio flaccidus)
• threadleaf snakeweed (Gutierrezia microcephala)
• Thurber's desertpeony (Acourtia thurberi)
• Thurber's sneezeweed (Helenium thurberi)
• (Stephanomeria thurberi)
• (Viguiera dentata)
• trailing fleabane (Erigeron flagellaris)
• Trans-Pecos thimblehead (Hymenothrix wislizeni)
• triangle-leaf bursage (Ambrosia deltoidea)
• turpentine bush (Ericameria laricifolia)
• upright prairie coneflower (Ratibida columnifera)
• veiny brickellbush (Brickellia venosa)
• velvet turtleback (Psathyrotes ramosissima)
• veronicaleaf brickellbush (Brickellia veronicifolia)
• Virgin River brittlebush (Encelia virginensis)
• (Stevia viscida)
• Wallace's woolly daisy (Eriophyllum wallacei)
• western pearly everlasting (Anaphalis margaritacea)
• (Pseudognaphalium leucocephalum)
• whitedaisy tidytips (Layia glandulosa)
• whitemargin pussytoes (Antennaria marginata)
• white sagebrush (Artemisia ludoviciana)
• whitestem paperflower (Psilostrophe cooperi)
• white tackstem (Calycoseris wrightii)
• white woolly daisy (Eriophyllum lanosum)
• willowleaf aster (Symphyotrichum praealtum)
• willow ragwort (Barkleyanthus salicifolius)
• wingpetal (Heterosperma pinnatum)
• woolly brickellbush (Brickellia incana)
• woolly desert marigold (Baileya pleniradiata)
• woolly eriophyllum (Antheropeas lanosum)
• woollyhead neststraw (Stylocline micropoides)
• woolly paperflower (Psilostrophe tagetina)
• (Senecio wootonii)
• Wright's baccharis (Baccharis wrightii)
• Wright's goldenrod (Solidago wrightii)
• Wright's snakeweed (Gutierrezia wrightii)
• Wright's thimblehead (Hymenothrix wrightii)
• yellowdome (Trichoptilium incisum)
• yellow pincushion (Chaenactis glabriuscula)
• yellowspine thistle (Cirsium ochrocentrum)
• yellow starthistle (Centaurea solstitialis)
• yellow tackstem (Calycoseris parryi)
• yerba porosa (Porophyllum ruderale)
• zoapatle (Montanoa tomentosa)

Bataceae[]

• saltwort (Batis maritima)

Berberidaceae[]

• creeping barberry (Mahonia repens)
• Frémont's barberry (Mahonia fremontii)
• Harrison's barberry (Berberis harrisoniana)
• Nevin's barberry (Mahonia nevinii)
• red barberry (Mahonia haematocarpa)
• Wilcox's barberry (Berberis wilcoxii)

Betulaceae[]

• aliso (Alnus acuminata)
• American hophornbeam (Ostrya virginiana)
• Arizona alder (Alnus oblongifolia)
• gray alder (Alnus incana)

Bignoniaceae[]

• catclaw (Dolichandra unguis-cati)
• desert willow (Chilopsis linearis)
• Mexican calabash (Crescentia alata)
• pink tabebuia (Handroanthus impetiginosus)
• trumpet creeper (Campsis radicans)
• yellow tabebuia (Tabebuia chrysantha)
• yellow trumpetbush (Tecoma stans)

Bixaceae[]

• Mexican yellowshow (Amoreuxia palmatifida)
• Santa Rita mountain yellowshow (Amoreuxia gonzalezii)
• silk cottontree (Cochlospermum vitifolium)

Blechnaceae[]

• palm fern (Blechnum appendiculatum)

Boraginaceae[]

• adobe popcornflower (Plagiobothrys acanthocarpus)
• (Phacelia arizonica)
• Arizona popcornflower (Plagiobothrys arizonicus)
• basin yellow cryptantha (Cryptantha confertiflora)
• bastard cherry (Ehretia tinifolia)
• (Cryptantha barbigera)
• black-sage (Cordia curassavica)
• bristly fiddleneck (Amsinckia tessellata)
• broadfruit combseed (Pectocarya platycarpa)
• (Heliotropium ternatum)
• (Wigandia urens)
• chuckwalla combseed (Pectocarya heterocarpa)
• cleftleaf wildheliotrope (Phacelia crenulata)
• (Cordia globosa)
• curvenut combseed (Pectocarya recurvata)
• dainty desert hideseed (Eucrypta micrantha)
• desert Canterbury bells (Phacelia campanularia)
• distant phacelia (Phacelia distans)
• fivespot (Nemophila maculata)
• (Lappula occidentalis)
• (Mertensia franciscana)
• Frémont's phacelia (Phacelia fremontii)
• fulvous popcornflower (Plagiobothrys fulvus)
• (Macromeria viridiflora = Lithospermum macromeria)
• (Cryptantha decipiens)
• (Lithospermum viride)
• (Cryptantha maritima)
• hiddenflower phacelia (Phacelia cryptantha)
• (Nama jamaicense)
• (Heliotropium fruticosum)
• lacy phacelia (Phacelia tanacetifolia)
• largeflower phacelia (Phacelia grandiflora)
• limestone phacelia (Phacelia affinis)
• Menzies' fiddleneck (Amsinckia menziesii)
• mountain balm (Eriodictyon trichocalyx)
• narrowleaf yerba santa (Eriodictyon angustifolium)
• Palmer's grapplinghook (Harpagonella palmeri)
• (Cordia sonorae)
• Panamint cryptantha (Cryptantha angustifolia)
• pedicellate phacelia (Phacelia pedicellata)
• (Plagiobothrys pringlei)
• salt heliotrope (Heliotropium curassavicum)
• sandfood (Pholisma sonorae)
• (Heliotropium angiospermum)
• (Phacelia caerulea)
• (Plagiobothrys hispidulus)
• (Cordia parvifolia)
• (Lithospermum cobrense)
• spotted hideseed (Eucrypta chrysanthemifolia)
• (Tournefortia hartwegiana)
• (Tournefortia volubilis)
• valley popcornflower (Plagiobothrys canescens)
• (Heliotropium macrostachyum)
• (Nama undulata)
• wingnut cryptantha (Cryptantha pterocarya)

Brassicaceae[]

• alpine pennycress (Noccaea montana)
• Asian mustard (Brassica tournefortii)
• black mustard (Brassica nigra)
• (Descurainia obtusa)
• (Caulanthus lasiophyllus)
• California shieldpod (Dithyrea californica)
• charlock (Sinapis arvensis)
• crossflower (Chorispora tenella)
• cultivated radish (Raphanus sativus)
• (Sisymbrium auriculatum)
• evening-scented stock (Matthiola bicornis)
• field mustard (Brassica rapa)
• Gordon's bladderpod (Physaria gordonii)
• herb sophia (Descurainia sophia)
• India mustard (Brassica juncea)
• Indian hedgemustard (Sisymbrium orientale)
• lesser swinecress (Lepidium didymum)
• little bladderpod (Physaria tenella)
• London rocket (Sisymbrium irio)
• (Pennellia longifolia)
• (Thelypodiopsis ambigua)
• peppergrass (Lepidium virginicum)
• perennial rockcress (Arabis perennans)
• rocketsalad (Eruca vesicaria)
• sanddune wallflower (Erysimum capitatum)
• sand fringepod (Thysanocarpus curvipes)
• shepherd's purse (Capsella bursa-pastoris)
• (Schoenocrambe linearifolia)
• (Rorippa teres)
• sweet alyssum (Lobularia maritima)
• (Lepidium thurberi)
• watercress (Nasturtium officinale)
• wedgeleaf draba (Draba cuneifolia)
• western tansymustard (Descurainia pinnata)
• white bladderpod (Physaria purpurea)
• wild radish (Raphanus raphanistrum)

Bromeliaceae[]

• (Bromelia alsodes)
• datillo (Hechtia montana)
• flor de encino (Tillandsia erubescens)
• mescal (Tillandsia caput-medusae)
• mezcalito (Tillandsia cretacea)
• small ballmoss (Tillandsia recurvata)

Burseraceae[]

• elemi-gum (Bursera penicillata)
• fragrant bursera (Bursera fagaroides)
• gumbo-limbo (Bursera simaruba)
• littleleaf elephant tree (Bursera microphylla)
• palo mulato (Bursera grandifolia)
• red elephant tree (Bursera hindsiana)
• tacamaca (Bursera lancifolia)
• torote (Bursera filicifolia)
• torote blanco (Bursera stenophylla)
• torote papelío (Bursera laxiflora)

Cactaceae[]

• Alamos barrel cactus (Ferocactus alamosanus)
• Arizona claret-cup cactus (Echinocereus arizonicus)
• (Cylindropuntia arbuscula)
• Arizona queen of the night (Peniocereus greggii)
• Arizona spinystar (Coryphantha vivipara)
• beavertail cactus (Opuntia basilaris)
• Bonker hedgehog cactus (Echinocereus bonkerae)
• Brady's pincushion cactus (Pediocactus bradyi)
• branched pencil cholla (Cylindropuntia ramosissima)
• brittle prickly pear (Opuntia fragilis)
• buckhorn cholla (Cylindropuntia acanthocarpa)
• bunny ears (Opuntia microdasys)
• cactus apple (Opuntia engelmannii)
• California barrel cactus (Ferocactus cylindraceus)
• California cholla (Cylindropuntia californica)
• California fishhook cactus (Mammillaria dioica)
• (Myrtillocactus cochal)
• (Cylindropuntia kleiniae)
• candy barrel cactus (Ferocactus wislizeni)
• (Echinocereus brandegeei)
• (Cylindropuntia cholla)
• Christmas cholla (Cylindropuntia leptocaulis)
• (Corynopuntia clavata)
• chaparral prickly pear (Opuntia oricola)
• choyita (Echinocereus scheeri)
• coastal cholla (Cylindropuntia prolifera)
• coastal prickly pear (Opuntia littoralis)
• cochineal nopal cactus (Opuntia cochenillifera)
• (Coryphantha robbinsorum)
• common fishhook cactus (Mammillaria tetrancistra)
• cottontop cactus (Echinocactus polycephalus)
• counterclockwise nipple cactus (Mammillaria mainiae)
• creeping devil (Stenocereus eruca)
• desert pincushion (Coryphantha chlorantha)
• (Corynopuntia emoryi)
• (Grusonia invicta)
• devilshead (Echinocactus horizonthalonius)
• (Echinocereus pseudopectinatus)
• dollarjoint prickly pear (Opuntia chlorotica)
• (Opuntia durangensis)
• (Stenocereus littoralis)
• Emory's barrel cactus (Ferocactus emoryi)
• Engelmann's hedgehog cactus (Echinocereus engelmannii)
• fire barrel cactus (Ferocactus gracilis)
• Ford barrel cactus (Ferocactus fordii)
• galloping cactus (Stenocereus gummosus)
• Gander's buckhorn cholla (Cylindropuntia ganderi)
• gearstem cactus (Peniocereus striatus)
• golden prickly pear (Opuntia aurea)
• golden-spined barrel cactus (Ferocactus chrysacanthus)
• golden torch (Bergerocactus emoryi)
• Graham's nipple cactus (Mammillaria grahamii)
• greenflower nipple cactus (Mammillaria barbata)
• (Mammillaria viridiflora)
• hecho (Pachycereus pecten-aboriginum)
• hybrid teddy bear cholla (Cylindropuntia fosbergii)
• Johnson's fishhook cactus (Echinomastus johnsonii)
• jumping cholla (Cylindropuntia fulgida)
• (Pediocactus paradinei)
• kingcup cactus (Echinocereus triglochidiatus)
• (Corynopuntia kunzei)
• lacespine nipple cactus (Mammillaria lasiacantha)
• (Echinocereus laui)
• (Echinocereus ledingii)
• little nipple cactus (Mammillaria heyderi)
• long-tubercle beehive cactus (Coryphantha robustispina)
• (Mammillaria macdougalii)
• (Opuntia strigil)
• (Echinocereus maritimus)
• (Corynopuntia parishii)
• Mexican giant cardon (Pachycereus pringlei)
• (Peniocereus serpentinus)
• Missouri foxtail cactus (Coryphantha missouriensis)
• (Cylindropuntia munzii)
• Navajo pincushion cactus (Pediocactus peeblesianus)
• (Coryphantha sneedii)
• organpipe cactus (Stenocereus thurberi)
• paperspine fishhook cactus (Sclerocactus papyracanthus)
• (Cylindropuntia tesajo)
• ping-pong ball cactus (Epithelantha micromeris)
• Pinkava's prickly pear (Opuntia pinkavae)
• pinkflower hedgehog cactus (Echinocereus fendleri)
• plains prickly pear (Opuntia polyacantha)
• purple prickly pear (Opuntia macrocentra)
• rainbow hedgehog cactus (Echinocereus rigidissimus)
• redspine fishhook cactus (Echinomastus erectocentrus)
• (Peniocereus marianus)
• (Corynopuntia pulchella)
• saguaro (Carnegiea gigantea)
• (Stenocereus montanus)
• San Diego barrel cactus (Ferocactus viridescens)
• (Echinocereus grandis)
• (Mammillaria estebanensis)
• (Echinocereus websterianus)
• (Coryphantha recurvata)
• (Peniocereus johnstonii)
• Santa Rita prickly pear (Opuntia santa-rita)
• scarlet hedgehog cactus (Echinocereus coccineus)
• senita cactus (Pachycereus schottii)
• Sheldon's pincushion (Mammillaria sheldonii)
• Siler pincushion cactus (Pediocactus sileri)
• silver cholla (Cylindropuntia echinocarpa)
• sina (Stenocereus alamosensis)
• (Selenicereus vagans)
• (Sclerocactus parviflorus)
• (Echinocereus pensilis)
• (Pilosocereus alensis)
• strawberry hedgehog cactus (Echinocereus fasciculatus)
• (Opuntia tapona)
• teddy bear cholla (Cylindropuntia bigelovii)
• thistle cholla (Cylindropuntia tunicata)
• Thornber's nipple cactus (Mammillaria thornberi)
• tree cholla (Cylindropuntia imbricata)
• triangle cactus (Acanthocereus tetragonus)
• (Ferocactus herrerae)
• tulip prickly pear (Opuntia phaeacantha)
• tuna cactus (Opuntia ficus-indica)
• twistspine prickly pear (Opuntia macrorhiza)
• violet prickly pear (Opuntia gosseliniana)
• walkingstick cactus (Cylindropuntia spinosior)
• Whipple cholla (Cylindropuntia whipplei)
• Whipple's fishhook cactus (Sclerocactus whipplei)
• (Echinomastus intertextus)
• Wolf's opuntia (Cylindropuntia wolfii)
• (Mammillaria wrightii)

Campanulaceae[]

• Apache lobelia (Lobelia anatina)
• cardinalflower (Lobelia cardinalis)
• clasping Venus' looking-glass (Triodanis perfoliata)
• devil's tobacco (Lobelia tupa)
• (Lobelia fenestralis)
• madamfate (Hippobroma longiflora)
• Sierra Madre lobelia (Lobelia laxiflora)

Cannabaceae[]

• (Aphananthe monoica)
• marijuana (Cannabis sativa)
• sugarberry (Celtis laevigata)

Capparaceae[]

• falseteeth (Capparis flexuosa)
• (Capparis atamisquea)

Caprifoliaceae[]

• Arizona honeysuckle (Lonicera arizonica)
• (Lonicera pilosa)
• Palmer's snowberry (Symphoricarpos palmeri)
• (Valeriana sorbifolia)
• tobacco root (Valeriana edulis)
• (Lonicera albiflora)

Caricaceae[]

• (Jarilla heterophylla)

Caryophyllaceae[]

• (Drymaria leptophylla)
• cardinal catchfly (Silene laciniata)
• (Cerastium sordidum)
• common soapwort (Saponaria officinalis)
• (Drymaria glandulosa)
• hairy rupturewort (Herniaria hirsuta)
• Indian pink (Silene californica)
• (Cerastium nutans)
• (Drymaria effusa)
• (Cerastium brachypodum)
• simple campion (Silene scouleri)
• sleepy silene (Silene antirrhina)
• (Drymaria multiflora)
• (Drymaria molluginea)
• (Loeflingia squarrosa)
• (Arenaria lanuginosa)
• (Cerastium texanum)
• (Drymaria laxiflora)

Celastraceae[]

• algodoncillo (Wimmeria mexicana)
• crucifixion thorn (Canotia holacantha)
• (Schaefferia cuneifolia)
• (Maytenus phyllanthoides)
• (Mortonia sempervirens)

Cistaceae[]

• (Helianthemum glomeratum)
• (Lechea tripetala)

Cleomaceae[]

• Asian spiderflower (Cleome viscosa)
• bladderpod spiderflower (Cleome isomeris)
• (Polanisia trachysperma)
• spectacle fruit (Wislizenia refracta)
• spiderwisp (Cleome gynandra)

Combretaceae[]

• button mangrove (Conocarpus erectus)
• white mangrove (Laguncularia racemosa)

Commelinaceae[]

• (Commelina coelestis)
• birdbill dayflower (Commelina dianthifolia)
• climbing dayflower (Commelina diffusa)
• (Callisia monandra)
• creeping inchplant (Callisia repens)
• (Tradescantia crassifolia)
• pinewoods spiderwort (Tradescantia pinetorum)
• whitemouth dayflower (Commelina erecta)

Convolvulaceae[]

• (Cuscuta americana)
• bayhops (Ipomoea pes-caprae)
• beach morning glory (Ipomoea imperati)
• bejuco blanco (Ipomoea bracteata)
• (Cuscuta indecora)
• Cairo morning glory (Ipomoea cairica)
• (Ipomoea barbatisepala)
• cardinal climber (Ipomoea quamoclit)
• (Cuscuta mitriformis)
• (Ipomoea costellata)
• field bindweed (Convolvulus arvensis)
• fiveangled dodder (Cuscuta pentagona)
• flatglobe dodder (Cuscuta umbellata)
• (Cuscuta applanata)
• (Cuscuta potosina)
• gloria de la mañana (Ipomoea carnea)
• (Ipomoea cardiophylla)
• (Ipomoea plummerae)
• ivyleaf morning glory (Ipomoea hederacea)
• (Ipomoea turbinata)
• (Ipomoea meyeri)
• (Jacquemontia agrestis)
• (Dichondra brachypoda)
• (Merremia dissecta)
• oceanblue morning glory (Ipomoea indica)
• (Ipomoea longifolia)
• (Jacquemontia pringlei)
• (Ipomoea capillacea)
• (Merremia quinquefolia)
• (Ipomoea ancisa)
• shaggy dwarf morning glory (Evolvulus nuttallianus)
• (Ipomoea pubescens)
• (Evolvulus sericeus)
• (Dichondra sericea)
• (Jacquemontia pentanthos)
• (Cuscuta leptantha)
• slender dwarf morning glory (Evolvulus alsinoides)
• (Cuscuta erosa)
• (Ipomoea tenuiloba)
• spreading alkaliweed (Cressa truxillensis)
• sweet potato (Ipomoea batatas)
• tall morning glory (Ipomoea purpurea)
• (Operculina pinnatifida)
• (Ipomoea thurberi)
• (Ipomoea cristulata)
• tree morning glory (Ipomoea arborescens)
• (Ipomoea ternifolia)
• (Cuscuta tuberculata)
• white-edge morning glory (Ipomoea nil)
• (Evolvulus arizonicus)
• Wright's morning glory (Ipomoea wrightii)
• (Merremia aurea)

Cornaceae[]

• (Cornus disciflora)
• redosier dogwood (Cornus sericea)

Crassulaceae[]

• Abrams' liveforever (Dudleya abramsii)
• Anthony's liveforever (Dudleya anthonyi)
• Blochman's liveforever (Dudleya blochmaniae)
• bright green dudleya (Dudleya virens)
• Britton's liveforever (Dudleya brittonii)
• broadleaf stonecrop (Sedum spathulifolium)
• canyon liveforever (Dudleya cymosa)
• chalk dudleya (Dudleya pulverulenta)
• Chihuahua flower (Graptopetalum bellum)
• cliff lettuce (Dudleya farinosa)
• (Sedum cockerellii)
• fingertips (Dudleya edulis)
• (Dudleya collomiae)
• (Sedum stelliforme)
• lanceleaf liveforever (Dudleya lanceolata)
• manystem liveforever (Dudleya multicaulis)
• Panamint liveforever (Dudleya saxosa)
• Patagonia Mountain leatherpetal (Graptopetalum bartramii)
• (Crassula viridis)
• sand pygmyweed (Crassula connata)
• (Graptopetalum rusbyi)
• Santa Cruz Island liveforever (Dudleya nesiotica)
• (Crassula solieri)
• sticky liveforever (Dudleya viscida)
• tapertip liveforever (Dudleya attenuata)
• variegated liveforever (Dudleya variegata)
• (Crassula saginoides)

Crossosomataceae[]

• apachebush (Apacheria chiricahuensis)
• California rockflower (Crossosoma californicum)
• ragged rockflower (Crossosoma bigelovii)

Cucurbitaceae[]

• (Ibervillea fusiformis)
• balsampear (Momordica charantia)
• calabash (Lagenaria siceraria)
• cantaloupe (Cucumis melo)
• (Sicyosperma gracile)
• colocynth (Citrullus colocynthis)
• coralfruit (Doyerea emetocathartica)
• coyote gourd (Cucurbita cordata)
• coyote melon (Cucurbita palmata)
• Cucamonga manroot (Marah macrocarpus)
• cucumber (Cucumis sativus)
• cushaw (Cucurbita argyrosperma)
• desert starvine (Brandegea bigelovii)
• (Schizocarpum palmeri)
• figleaf gourd (Cucurbita ficifolia)
• fingerleaf gourd (Cucurbita digitata)
• Gila manroot (Marah gilensis)
• Guadeloupe cucumber (Melothria pendula)
• melon loco (Apodanthera undulata)
• Missouri gourd (Cucurbita foetidissima)
• (Ibervillea tenuisecta)
• (Sicyos parviflorus)
• (Sicyos microphyllus)
• sponge cucumber (Luffa operculata)
• sponge gourd (Luffa aegyptiaca)
• squash (Cucurbita maxima)
• squash (Cucurbita moschata)
• squash (Cucurbita pepo)
• (Sicyos laciniatus)
• Tumamoc globeberry (Tumamoca macdougalii)
• watermelon (Citrullus lanatus)
• West Indian gherkin (Cucumis anguria)
• (Echinopepon wrightii)

Cupressaceae[]

• alligator juniper (Juniperus deppeana)
• Arizona cypress (Cupressus arizonica)
• California juniper (Juniperus californica)
• Monterey cypress (Cupressus macrocarpa)
• redberry juniper (Juniperus coahuilensis)
• Rocky Mountain juniper (Juniperus scopulorum)
• táscate espinosa (Juniperus durangensis)
• Tecate cypress (Cupressus forbesii)
• Utah juniper (Juniperus osteosperma)

Cyperaceae[]

• alkali bulrush (Bolboschoenus maritimus)
• bearded flatsedge (Cyperus squarrosus)
• black flatsedge (Cyperus niger)
• Canada spikesedge (Eleocharis geniculata)
• chairmaker's bulrush (Schoenoplectus americanus)
• Chihuahuan sedge (Carex chihuahuensis)
• clustered field sedge (Carex praegracilis)
• common spikerush (Eleocharis palustris)
• (Cyperus lanceolatus)
• (Cyperus fendlerianus)
• finger flatsedge (Cyperus digitatus)
• (Cyperus amabilis)
• forked fimbry (Fimbristylis dichotoma)
• fragrant flatsedge (Cyperus odoratus)
• (Bulbostylis funckii)
• (Carex agrostoides)
• (Cyperus virens)
• (Cyperus dentoniae)
• hardstem bulrush (Schoenoplectus acutus)
• (Cyperus hermaphroditus)
• (Carex leucodonta)
• (Cyperus aggregatus)
• (Rhynchospora kunthii)
• manyspike flatsedge (Cyperus polystachyos)
• (Cyperus prolixus)
• (Eleocharis montana)
• (Cyperus mutisii)
• Nebraska sedge (Carex nebrascensis)
• netted nutrush (Scleria reticularis)
• nutgrass (Cyperus rotundus)
• oneflower flatsedge (Cyperus retroflexus)
• (Cyperus pallidicolor)
• Parish's spikerush (Eleocharis parishii)
• (Cyperus hypopitys)
• (Cyperus ochraceus)
• poorland flatsedge (Cyperus compressus)
• purple spikerush (Eleocharis atropurpurea)
• ricefield flatsedge (Cyperus iria)
• (Scleria hirtella)
• rooted spikerush (Eleocharis radicans)
• royal flatsedge (Cyperus elegans)
• (Cyperus sphaerolepis)
• (Bulbostylis juncoides)
• sand spikerush (Eleocharis montevidensis)
• seacoast bulrush (Bolboschoenus robustus)
• (Cyperus oxylepis)
• slender flatsedge (Cyperus bipartitus)
• smallflower halfchaff sedge (Lipocarpha micrantha)
• smooth flatsedge (Cyperus laevigatus)
• (Fimbristylis decipiens)
• (Cyperus spectabilis)
• starrush whitetop (Rhynchospora colorata)
• swamp carex (Carex senta)
• taperfruit shortscale sedge (Carex leptopoda)
• tapertip flatsedge (Cyperus acuminatus)
• (Cyperus seslerioides)
• tropical flatsedge (Cyperus surinamensis)
• (Carex turbinata)
• umbrella plant (Cyperus involucratus)
• variable flatsedge (Cyperus difformis)
• (Cyperus flavicomus)
• (Kyllinga odorata)
• widefruit sedge (Carex angustata)
• (Cyperus fugax)
• (Cyperus entrerianus)
• (Carex dipsaceus)
• yellow flatsedge (Cyperus flavescens)
• (Rhynchospora nervosa)

Dennstaedtiaceae[]

• (Dennstaedtia cicutaria)
• western bracken fern (Pteridium aquilinum)

Dioscoreaceae[]

• (Dioscorea convolvulacea)

Dryopteridaceae[]

• Christmas fern (Polystichum acrostichoides)
• (Dryopteris cinnamomea)
• (Phanerophlebia auriculata)

Ebenaceae[]

• (Diospyros sonorae)
• (Diospyros californica)

Elatinaceae[]

• Texas bergia (Bergia texana)

Ephedraceae[]

• longleaf jointfir (Ephedra trifurca)
• Nevada jointfir (Ephedra nevadensis)
• rough jointfir (Ephedra aspera)

Equisetaceae[]

• dwarf scouringrush (Equisetum scirpoides)
• smooth horsetail (Equisetum laevigatum)

Ericaceae[]

• Arizona madrone (Arbutus arizonica)
• Baja birdbush (Ornithostaphylos oppositifolia)
• dwarf bilberry (Vaccinium caespitosum)
• ghost plant (Monotropa uniflora)
• (Arctostaphylos peninsularis)
• pinesap (Monotropa hypopitys)
• pointleaf manzanita (Arctostaphylos pungens)
• sidebells wintergreen (Orthilia secunda)
• striped prince's pine (Chimaphila maculata)
• Texas madrone (Arbutus xalapensis)

Erythroxylaceae[]

• (Erythroxylum mexicanum)

Euphorbiaceae[]

• Abrams' sandmat (Euphorbia abramsiana)
• (Manihot davisiae)
• (Jatropha cinerea)
• (Euphorbia arizonica)
• (Sebastiania bilocularis)
• beetle spurge (Euphorbia eriantha)
• (Euphorbia bilobata)
• branched noseburn (Tragia ramosa)
• (Manihot aesculifolia)
• California copperleaf (Acalypha californica)
• (Euphorbia ceroderma)
• (Euphorbia pediculifera)
• castor bean (Ricinus communis)
• (Tragia nepetifolia)
• Chiricahua Mountain sandmat (Euphorbia florida)
• cliff spurge (Euphorbia misera)
• David's spurge (Euphorbia davidii)
• (Manihot angustiloba)
• (Argythamnia claryana)
• eyebane (Euphorbia nutans)
• fire on the mountain (Euphorbia cyathophora)
• (Acalypha alopecuroides)
• graceful sandmat (Euphorbia hypericifolia)
• (Euphorbia graminea)
• (Euphorbia thymifolia)
• (Euphorbia cuphosperma)
• (Euphorbia capitellata)
• (Bernardia incana)
• (Euphorbia brachycera)
• (Euphorbia macropus)
• (Euphorbia hyssopifolia)
• (Tragia jonesii)
• leatherweed (Croton pottsii)
• mala mujer (Cnidoscolus angustidens)
• matted sandmat (Euphorbia serpens)
• (Euphorbia mendezii)
• (Acalypha mexicana)
• Mexican croton (Croton ciliatoglandulifer)
• Mexican fireplant (Euphorbia heterophylla)
• Mexican jumping bean (Sebastiania pavoniana)
• (Euphorbia gracillima)
• milk purslane (Euphorbia maculata)
• (Euphorbia chamaesula)
• (Argythamnia lanceolata)
• (Acalypha neomexicana)
• (Argythamnia neomexicana)
• (Euphorbia parryi)
• petty spurge (Euphorbia peplus)
• (Jatropha cuneata)
• pillpod sandmat (Euphorbia hirta)
• pineland threeseed mercury (Acalypha ostryifolia)
• prostrate sandmat (Euphorbia prostrata)
• queen's-root (Stillingia linearifolia)
• (Jatropha macrorhiza)
• red-gland spurge (Euphorbia melanadenia)
• (Euphorbia glyptosperma)
• (Euphorbia indivisa)
• (Jatropha cardiophylla)
• (Euphorbia trachysperma)
• (Euphorbia serrula)
• (Euphorbia stictospora)
• (Pedilanthus macrocarpus)
• smallseed sandmat (Euphorbia polycarpa)
• snow on the mountain (Euphorbia marginata)
• (Euphorbia exstipulata)
• (Tragia laciniata)
• (Croton sonorae)
• Sonoran sandmat (Euphorbia micromera)
• (Euphorbia adenoptera)
• (Dalechampia scandens)
• (Euphorbia radians)
• (Jatropha malacophylla)
• threadstem sandmat (Euphorbia revoluta)
• whitemargin sandmat (Euphorbia albomarginata)
• Yuma sandmat (Euphorbia setiloba)
• (Argythamnia serrata)

Fabaceae[]

• American sicklepod (Senna obtusifolia)
• anil de pasto (Indigofera suffruticosa)
• (Coursetia caribaea)
• Arizona lupine (Lupinus arizonicus)
• Arizona milkvetch (Astragalus arizonicus)
• (Sophora arizonica)
• (Desmodium arizonicum)
• arrowhead rattlebox (Crotalaria sagittalis)
• arroyo lupine (Lupinus succulentus)
• (Indigofera trita)
• Atlantic pigeonwings (Clitoria mariana)
• (Trifolium amabile)
• bajada lupine (Lupinus concinnus)
• Baja fairyduster (Calliandra californica)
• barba de chivato (Calliandra houstoniana)
• bayahonda blanca (Prosopis juliflora)
• bigpod sesbania (Sesbania herbacea)
• bird of paradise shrub (Caesalpinia gilliesii)
• black locust (Robinia pseudoacacia)
• blue paloverde (Parkinsonia florida)
• (Acacia cochliacantha)
• brasilette (Haematoxylum brasiletto)
• (Canavalia brasiliensis)
• Brazilian stylo (Stylosanthes guianensis)
• (Lupinus parishii)
• burclover (Medicago polymorpha)
• California dalea (Psorothamnus arborescens)
• (Senegalia kelloggiana)
• cassie (Vachellia farnesiana)
• catclaw acacia (Senegalia greggii)
• (Pithecellobium unguis-cati)
• catclaw mimosa (Mimosa aculeaticarpa)
• (Mimosa polyantha)
• chaparral pea (Pickeringia montana)
• (Dalea exigua)
• (Rhynchosia edulis)
• chipilín (Crotalaria longirostrata)
• coastal bird's-foot trefoil (Lotus salsuginosus)
• coralbean (Erythrina flabelliformis)
• (Diphysa suberosa)
• Coues' cassia (Senna covesii)
• (Desmanthus covillei)
• cow clover (Trifolium wormskioldii)
• (Neptunia plena)
• deerweed (Syrmatium glabrum)
• desert false indigo (Amorpha fruticosa)
• desert ironwood (Olneya tesota)
• desert lupine (Lupinus sparsiflorus)
• desertsenna (Senna armata)
• (Desmodium tortuosum)
• (Dalea nana)
• dwarf stickpea (Calliandra humilis)
• dwarf white milkvetch (Astragalus didymocarpus)
• dyebush (Psorothamnus emoryi)
• (Caesalpinia sclerocarpa)
• elegant lupine (Lupinus elegans)
• fairyduster (Calliandra eriophylla)
• (Acacia pennatula)
• (Dalea formosa)
• (Piscidia mollis)
• (Senna atomaria)
• foothill deervetch (Lotus humistratus)
• (Dalea leporina)
• freckled milkvetch (Astragalus lentiginosus)
• Frémont's dalea (Psorothamnus fremontii)
• (Acacia goldmanii)
• Gentry's indigobush (Dalea tentaculoides)
• giant sensitive plant (Mimosa diplotricha)
• (Mimosa grahamii)
• (Desmodium grahamii)
• grape soda lupine (Lupinus excubitus)
• (Lathyrus graminifolius)
• (Dalea grayi)
• (Cassia nemophila)
• (Lotus greenei)
• greenleaf ticktrefoil (Desmodium intortum)
• (Dalea greggii)
• (Mariosousa russelliana)
• (Pediomelum rhombifolium)
• (Havardia sonorae)
• (Brongniartia nudiflora)
• (Aeschynomene villosa)
• hairypod cowpea (Vigna luteola)
• hairy prairie clover (Dalea mollis)
• (Astragalus allochrous)
• (Lupinus hillii)
• honeylocust (Gleditsia triacanthos)
• honey mesquite (Prosopis glandulosa)
• (Sphinctospermum constrictum)
• (Lupinus huachucanus)
• Huachuca Mountain milkvetch (Astragalus hypoxylus)
• (Diphysa occidentalis)
• Indian rushpea (Hoffmannseggia glauca)
• Jerusalem thorn (Parkinsonia aculeata)
• least snoutbean (Rhynchosia minima)
• (Cologania obovata)
• (Lupinus lemmonii)
• (Lysiloma watsonii)
• (Brongniartia minutifolia)
• (Cologania angustifolia)
• (Dalea scandens)
• (Crotalaria pumila)
• (Dalea lumholtzii)
• (Havardia mexicana)
• Mexican holdback (Caesalpinia mexicana)
• Mexican kidneywood (Eysenhardtia polystachya)
• (Mimosa distachya)
• (Brongniartia alamosana)
• (Dalea exserta)
• (Cercis mexicana)
• (Mariosousa millefolia)
• miniature lupine (Lupinus bicolor)
• (Vicia leucophaea)
• Mojave lupine (Lupinus odoratus)
• monkeypod (Pithecellobium dulce)
• mountain goldenbanner (Thermopsis montana)
• (Chloroleucon mangense)
• (Desmodium angustifolium)
• (Lotus plebeius)
• (Lupinus neomexicanus)
• (Desmodium neomexicanum)
• (Dalea versicolor)
• (Senna uniflora)
• (Canavalia villosa)
• Pacific pea (Lathyrus vestitus)
• (Cologania pallida)
• (Lysiloma candidum)
• (Parkinsonia praecox)
• (Acacia peninsularis)
• (Caesalpinia platyloba)
• (Caesalpinia pannosa)
• palo fierro (Hesperalbizia occidentalis)
• (Albizia sinaloensis)
• Parry's false prairie-clover (Marina parryi)
• (Bauhinia pringlei)
• (Phaseolus parvulus)
• (Stylosanthes viscosa)
• prairie acacia (Acacia angustissima)
• pride of Barbados (Caesalpinia pulcherrima)
• pride of California (Lathyrus splendens)
• (Dalea pringlei)
• (Mimosa asperata)
• purple bushbean (Macroptilium atropurpureum)
• purple desert lupine (Lupinus shockleyi)
• (Lysiloma divaricatum)
• quickstick (Gliricidia sepium)
• red fairyduster (Calliandra peninsularis)
• (Tephrosia vicioides)
• (Coursetia glandulosa)
• (Rhynchosia precatoria)
• (Desmodium rosei)
• royal poinciana (Delonix regia)
• (Marina calycosa)
• (Desmodium batocaulon)
• Santa Catalina prairie clover (Dalea pulchra)
• (Desmodium psilocarpum)
• (Desmodium retinens)
• scarlet milkvetch (Astragalus coccineus)
• Schott's dalea (Psorothamnus schottii)
• (Nissolia schottii)
• (Desmodium scorpiurus)
• screwbean mesquite (Prosopis pubescens)
• sensitive partridge pea (Chamaecrista nictitans)
• septicweed (Senna occidentalis)
• (Crotalaria incana)
• shortstem lupine (Lupinus brevicaulis)
• shrubby deervetch (Lotus rigidus)
• shyleaf (Aeschynomene americana)
• (Dalea bicolor)
• silver senna (Senna artemisioides)
• silvery lupine (Lupinus argenteus)
• (Desmodium psilophyllum)
• (Dalea polygonoides)
• (Chamaecrista serpens)
• slimjim bean (Phaseolus filiformis)
• slimleaf bean (Phaseolus angustissimus)
• smoketree (Psorothamnus spinosus)
• (Coursetia glabella)
• (Tephrosia leiocarpa)
• soft prairie clover (Dalea mollissima)
• (Phaseolus pedicellatus)
• (Lotus alamosanus)
• (Indigofera sphaerocarpa)
• (Dalea filiformis)
• (Desmodium scopulorum)
• sourclover (Melilotus indica)
• (Desmodium cinerascens)
• spotted bean (Phaseolus maculatus)
• (Marina diffusa)
• spurred butterfly pea (Centrosema virginianum)
• strigose bird's-foot trefoil (Lotus strigosus)
• (Vicia pulchella)
• sweet pea (Lathyrus odoratus)
• (Lupinus caudatus)
• tamarind (Tamarindus indica)
• tepary bean (Phaseolus acutifolius)
• (Rhynchosia senna)
• (Diphysa thurberi)
• (Tephrosia thurberi)
• Townsville stylo (Stylosanthes humilis)
• (Acacia occidentalis)
• (Desmodium cajanifolium)
• turkeypeas (Astragalus nuttallianus)
• (Senna bauhinioides)
• twohorn bundleflower (Desmanthus bicornutus)
• (Clitoria polystachya)
• (Macroptilium gibbosifolium)
• (Senna lindheimeriana)
• velvet mesquite (Prosopis velutina)
• (Mimosa dysocarpa)
• (Caesalpinia standleyi)
• (Acacia neovernicosa)
• western redbud (Cercis occidentalis)
• (Desmodium procumbens)
• (Caesalpinia caladenia)
• whitebark acacia (Mariosousa willardiana)
• whiteflower prairie clover (Dalea albiflora)
• white leadtree (Leucaena leucocephala)
• white prairie clover (Dalea candida)
• (Vigna adenantha)
• Wislizenus' senna (Senna wislizeni)
• woman's tongue (Albizia lebbeck)
• (Vigna speciosa)
• (Trifolium pinetorum)
• woolly locoweed (Astragalus mollissimus)
• (Senna hirsuta)
• (Galactia wrightii)
• (Dalea wrightii)
• yellow paloverde (Parkinsonia microphylla)
• yellow sweetclover (Melilotus albus)
• yoke-leaved amicia (Amicia zygomeris)
• (Zornia reticulata)

Fagaceae[]

• black oak (Quercus devia)
• Brandegee oak (Quercus brandegeei)
• California live oak (Quercus agrifolia)
• canyon live oak (Quercus chrysolepis)
• Chihuahua oak (Quercus chihuahuensis)
• cusi (Quercus albocincta)
• Davis Mountain oak (Quercus depressipes)
• Emory oak (Quercus emoryi)
• encino asta (Quercus subspathulata)
• gray oak (Quercus grisea)
• handbasin oak (Quercus tarahumara)
• Mexican blue oak (Quercus oblongifolia)
• netleaf oak (Quercus rugosa)
• Palmer oak (Quercus palmeri)
• pungent oak (Quercus pungens)
• roble prieto (Quercus durifolia)
• scrub oak (Quercus dumosa)
• silverleaf oak (Quercus hypoleucoides)
• Sonoran oak (Quercus viminea)
• Sonoran scrub oak (Quercus turbinella)
• Toumey oak (Quercus toumeyi)
• valley oak (Quercus lobata)

Fouquieriaceae[]

• (Fouquieria diguetii)
• boojum (Fouquieria columnaris)
• (Fouquieria macdougalii)
• ocotillo (Fouquieria splendens)
• (Fouquieria burragei)
• (Fouquieria fasciculata)

Frankeniaceae[]

• alkali heath (Frankenia salina)
• Palmer's seaheath (Frankenia palmeri)

Garryaceae[]

• ashy silktassel (Garrya flavescens)
• eggleaf silktassel (Garrya ovata)
• (Garrya laurifolia)
• Wright's silktassel (Garrya wrightii)

Gelsemiaceae[]

• Carolina jessamine (Gelsemium sempervirens)

Gentianaceae[]

• Arizona centaury (Zeltnera calycosa)
• autumn dwarf gentian (Gentianella amarella)
• (Gentianella microcalyx)
• (Gentianella wislizeni)
• desert centaury (Zeltnera exaltata)
• elkweed (Frasera speciosa)
• (Gentianopsis macrantha)
• (Halenia recurva)
• (Zeltnera nudicaulis)

Geraniaceae[]

• (Geranium wislizeni)
• Richardson's geranium (Geranium richardsonii)
• Texas stork's bill (Erodium texanum)

Grossulariaceae[]

• chaparral currant (Ribes indecorum)
• fuchsia-flowered currant (Ribes speciosum)
• island currant (Ribes viburnifolium)
• orange gooseberry (Ribes pinetorum)

Haloragaceae[]

• cutleaf watermilfoil (Myriophyllum pinnatum)
• Eurasian watermilfoil (Myriophyllum spicatum)
• parrot feather watermilfoil (Myriophyllum aquaticum)

Hydrangeaceae[]

• cliff fendlerbush (Fendlera rupicola)
• (Hydrangea seemannii)
• Lewis' mock orange (Philadelphus lewisii)
• littleleaf mock orange (Philadelphus microphyllus)

Hydrocharitaceae[]

• hydrilla (Hydrilla verticillata)
• nodding waternymph (Najas flexilis)

Hydroleaceae[]

• (Hydrolea spinosa)

Hypericaceae[]

• (Hypericum scouleri)

Hypoxidaceae[]

• Mexican yellow star-grass (Hypoxis mexicana)

Iridaceae[]

• (Sisyrinchium arizonicum)
• blackberry lily (Belamcanda chinensis)
• false freesia (Freesia laxa)
• fragrant gladiolus (Gladiolus callianthus)
• montbretia (Crocosmia crocosmiiflora)
• (Sisyrinchium cernuum)
• North's false flag (Neomarica northiana)
• Rocky Mountain iris (Iris missouriensis)
• (Sisyrinchium demissum)
• tiger flower (Tigridia pavonia)
• western blue-eyed grass (Sisyrinchium bellum)
• (Neomarica longifolia)

Juglandaceae[]

• Arizona walnut (Juglans major)

Juncaceae[]

• arctic rush (Juncus arcticus)
• Colorado rush (Juncus confusus)
• forked rush (Juncus dichotomus)
• grassleaf rush (Juncus marginatus)
• jointleaf rush (Juncus articulatus)
• poverty rush (Juncus tenuis)
• swordleaf rush (Juncus ensifolius)
• tapertip rush (Juncus acuminatus)

Juncaginaceae[]

• lilaea (Lilaea scilloides)

Krameriaceae[]

• littleleaf ratany (Krameria erecta)
• trailing ratany (Krameria lanceolata)
• white ratany (Krameria bicolor)

Lamiaceae[]

• American pennyroyal (Hedeoma pulegioides)
• apple mint (Mentha suaveolens)
• Arizona bluecurls (Trichostema arizonicum)
• Arizona monardella (Monardella arizonica)
• autumn sage (Salvia greggii)
• baby sage (Salvia microphylla)
• basil (Ocimum basilicum)
• (Lavandula × intermedia)
• black sage (Salvia mellifera)
• blood sage (Salvia coccinea)
• blue sage (Salvia pachyphylla)
• bog sage (Salvia uliginosa)
• Browne's savory (Clinopodium brownei)
• Canary Island lavender (Lavandula canariensis)
• Cedros Island sage (Salvia cedrosensis)
• chia (Salvia hispanica)
• Christmas candlestick (Leonotis nepetifolia)
• Cleveland sage (Salvia clevelandii)
• common horehound (Marrubium vulgare)
• common sage (Salvia officinalis)
• Coulter's wrinklefruit (Tetraclea coulteri)
• creeping sage (Salvia sonomensis)
• crimson sage (Salvia henryi)
• (Salvia davidsonii)
• (Hedeoma dentatum)
• desert germander (Teucrium glandulosum)
• desert indigo sage (Salvia arizonica)
• desert lavender (Hyptis emoryi)
• downy lavender (Lavandula multifida)
• English lavender (Lavandula angustifolia)
• European pennyroyal (Mentha pulegium)
• fern lavender (Lavandula pinnata)
• Florida Keys sage (Salvia riparia)
• forsythia sage (Salvia madrensis)
• gentian sage (Salvia patens)
• grape-scented sage (Salvia melissodora)
• henbit deadnettle (Lamium amplexicaule)
• hummingbird sage (Salvia spathacea)
• island pitcher sage (Lepechinia fragrans)
• Jerusalem sage (Phlomis fruticosa)
• lanceleaf sage (Salvia reflexa)
• Lemmon's sage (Salvia lemmonii)
• lemon beebalm (Monarda citriodora)
• lindenleaf sage (Salvia tiliifolia)
• (Salvia alamosana)
• mealy sage (Salvia farinacea)
• Mexican bladdersage (Salazaria mexicana)
• Mexican blue sage (Salvia chamaedryoides)
• Mexican bush sage (Salvia leucantha)
• Mexican sage (Salvia mexicana)
• Mexican scarlet sage (Salvia fulgens)
• (Scutellaria potosina)
• Mojave sage (Salvia mohavensis)
• mountain monardella (Monardella odoratissima)
• (Stachys crenata)
• Munz's sage (Salvia munzii)
• (Vitex pyramidata)
• obedient plant (Physostegia virginiana)
• (Agastache pallida)
• pignut (Hyptis suaveolens)
• pineapple sage (Salvia elegans)
• (Monarda pectinata)
• (Agastache pringlei)
• purple sage (Salvia dorrii)
• (Hedeoma costata)
• (Stachys bigelovii)
• rock sage (Salvia pinguifolia)
• rosemary (Rosmarinus officinalis)
• San Diego pitcher sage (Lepechinia ganderi)
• (Agastache mearnsii)
• San Luis purple sage (Salvia leucophylla)
• scarlet hedgenettle (Stachys coccinea)
• scarlet sage (Salvia splendens)
• shellflower (Moluccella laevis)
• simpleleaf chastetree (Vitex trifolia)
• small coastal germander (Teucrium cubense)
• Sonoran giant hyssop (Agastache wrightii)
• Spanish lavender (Lavandula stoechas)
• spearmint (Mentha spicata)
• thistle sage (Salvia carduacea)
• (Hyptis mutabilis)
• (Vitex mollis)
• wall germander (Teucrium chamaedrys)
• (Agastache micrantha)
• white sage (Salvia apiana)
• wild bergamot (Monarda fistulosa)
• wild mint (Mentha arvensis)
• woolly bluecurls (Trichostema lanatum)
• yellow lavender (Lavandula viridis)

Lauraceae[]

• California laurel (Umbellularia californica)
• (Cinnamomum hartmannii)
• Mexican bay (Litsea glaucescens)
• (Nectandra hihua)

Lentibulariaceae[]

• humped bladderwort (Utricularia gibba)

Liliaceae[]

• desert Mariposa lily (Calochortus kennedyi)
• doubting Mariposa lily (Calochortus ambiguus)
• golden Mariposa lily (Calochortus aureus)
• lemon lily (Lilium parryi)
• sego lily (Calochortus nuttallii)

Linaceae[]

• blue flax (Linum perenne)
• common flax (Linum usitatissimum)
• (Linum neomexicanum)
• plains flax (Linum puberulum)
• red flax (Linum grandiflorum)
• (Linum australe)

Loasaceae[]

• Adonis blazingstar (Mentzelia multiflora)
• Argus blazingstar (Mentzelia oreophila)
• desert stingbush (Eucnide urens)
• dwarf mentzelia (Mentzelia pumila)
• (Mentzelia isolata)
• (Mentzelia jonesii)
• narrowleaf sandpaper plant (Petalonyx linearis)
• (Mentzelia asperula)
• (Eucnide rupestris)
• shining blazingstar (Mentzelia nitens)
• (Mentzelia texana)
• (Mentzelia aspera)
• whitebract blazingstar (Mentzelia involucrata)
• whitestem blazingstar (Mentzelia albicaulis)
• yellowcomet (Mentzelia affinis)

Loganiaceae[]

• (Spigelia hedyotidea)

Lomariopsidaceae[]

• Boston sword fern (Nephrolepis exaltata)

Lythraceae[]

• (Cuphea llavea)
• crepe myrtle (Lagerstroemia indica)
• lowland rotala (Rotala ramosior)
• pomegranate (Punica granatum)
• shrubby yellowcrest (Heimia salicifolia)
• (Nesaea longipes)
• valley redstem (Ammannia coccinea)
• (Cuphea wrightii)

Malpighiaceae[]

• acerola (Malpighia emarginata)
• (Heteropterys palmeri)
• (Aspicarpa hirtella)
• (Callaeum macropterum)
• (Galphimia angustifolia)
• (Janusia gracilis)
• (Galphimia glauca)
• wild crepe myrtle (Malpighia glabra)

Malvaceae[]

• alkali mallow (Malvella leprosa)
• American basswood (Tilia americana)
• (Abutilon trisulcatum)
• (Anoda thurberi)
• (Hibiscus biseptus)
• (Malvella sagittifolia)
• (Abutilon berlandieri)
• bladdermallow (Herissantia crispa)
• (Sida ciliaris)
• Brazilian rosemallow (Hibiscus phoeniceus)
• (Rhynchosida physocalyx)
• caliche globemallow (Sphaeralcea laxa)
• California ayenia (Ayenia compacta)
• California flannelbush (Fremontodendron californicum)
• chaparral mallow (Malacothamnus fasciculatus)
• cheeseweed (Malva parviflora)
• Chinese hibiscus (Hibiscus rosa-sinensis)
• copper globemallow (Sphaeralcea angustifolia)
• Coulter's globemallow (Sphaeralcea coulteri)
• crested anoda (Anoda cristata)
• crimsoneyed rosemallow (Hibiscus moscheutos)
• Cuban jute (Sida rhombifolia)
• (Ayenia microphylla)
• desert fivespot (Eremalche rotundifolia)
• desert globemallow (Sphaeralcea ambigua)
• dwarf checkermallow (Sidalcea malviflora)
• (Hibiscus coulteri)
• dwarf Indian mallow (Abutilon parvulum)
• (Sida tragiifolia)
• Emory globemallow (Sphaeralcea emoryi)
• (Bastardia bivalvis)
• (Anoda pentaschista)
• (Sida linifolia)
• fringed rosemallow (Hibiscus schizopetalus)
• (Triumfetta lappula)
• (Hibiscus martianus)
• heartleaf sida (Sida cordifolia)
• (Anoda abutiloides)
• Indian sorrel (Hibiscus sabdariffa)
• koki'o ke'oke'o (Hibiscus arnottianus)
• (Anoda lanceolata)
• (Anoda reticulata)
• (Horsfordia newberryi)
• (Sida neomexicana)
• (Corchorus hirtus)
• paleface (Hibiscus denudatus)
• Palmer's Indian mallow (Abutilon palmeri)
• Parish's Indian mallow (Abutilon parishii)
• pelotazo (Abutilon incanum)
• pink velvetmallow (Horsfordia alata)
• (Ceiba acuminata)
• pricklenut (Guazuma ulmifolia)
• (Sida spinosa)
• (Melochia pyramidata)
• (Triumfetta semitriloba)
• (Gossypium harknessii)
• (Hermannia pauciflora)
• (Sida aggregata)
• (Malvella lepidota)
• (Pseudobombax palmeri)
• (Malvastrum bicuspidatum)
• (Abutilon abutiloides)
• slippery burr (Corchorus siliquosus)
• (Ayenia glabra)
• (Sida glabra)
• (Abutilon mollicomum)
• (Sphaeralcea hastulata)
• (Sida abutifolia)
• (Melochia tomentosa)
• (Anoda crenatiflora)
• threelobe false mallow (Malvastrum coromandelianum)
• Thurber's cotton (Gossypium thurberi)
• (Ayenia filiformis)
• tree hibiscus (Hibiscus tiliaceus)
• (Malvaviscus penduliflorus)
• uhaloa (Waltheria indica)
• (Pseudabutilon umbellatum)
• upland cotton (Gossypium hirsutum)
• (Gossypium davidsonii)
• (Bastardia viscosa)
• wax mallow (Malvaviscus arboreus)
• white mallow (Eremalche exilis)
• (Abutilon reventum)
• (Abutilon malacum)
• yellowstem bushmallow (Malacothamnus densiflorus)

Marsileaceae[]

• (Marsilea vestita)
• (Marsilea ancylopoda)

Martyniaceae[]

• baby devil's claw (Martynia annua)
• desert unicorn-plant (Proboscidea althaeifolia)
• doubleclaw (Proboscidea parviflora)

Melanthiaceae[]

• California false hellebore (Veratrum californicum)
• (Zigadenus virescens)

Meliaceae[]

• (Trichilia hirta)
• chinaberry (Melia azedarach)
• (Trichilia americana)
• Spanish cedar (Cedrela odorata)

Menispermaceae[]

• snailseed (Cocculus diversifolius)
• velvetleaf (Cissampelos pareira)

Menyanthaceae[]

• floating heart (Nymphoides crenata)

Molluginaceae[]

• green carpetweed (Mollugo verticillata)
• spreading sweetjuice (Glinus radiatus)
• threadstem carpetweed (Mollugo cerviana)

Montiaceae[]

• common pussypaws (Cistanthe monandra)
• desert pussypaws (Cistanthe ambigua)
• fringed redmaids (Calandrinia ciliata)
• (Phemeranthus aurantiacus)
• (Phemeranthus marginatus)

Moraceae[]

• amate (Ficus maxima)
• baiburilla (Dorstenia drakena)
• breadnut (Brosimum alicastrum)
• chalate (Ficus trigonata)
• common fig (Ficus carica)
• fustic (Maclura tinctoria)
• mistletoe fig (Ficus deltoidea)
• (Ficus cotinifolia)
• rock fig (Ficus petiolaris)
• Sonoran strangler fig (Ficus pertusa)
• Texas mulberry (Morus microphylla)
• weeping fig (Ficus benjamina)
• white ramoon (Trophis racemosa)

Myrtaceae[]

• arrayán (Psidium sartorianum)
• common guava (Psidium guajava)
• river redgum (Eucalyptus camaldulensis)

Nitrariaceae[]

• harmal peganum (Peganum harmala)

Nyctaginaceae[]

• (Boerhavia pterocarpa)
• (Okenia hypogaea)
• (Boerhavia scandens)
• coastal sand verbena (Abronia maritima)
• Coulter's spiderling (Boerhavia coulteri)
• (Boerhavia spicata)
• desert wishbone bush (Mirabilis laevis)
• erect spiderling (Boerhavia erecta)
• fivewing spiderling (Boerhavia intermedia)
• (Abronia elliptica)
• (Mirabilis comata)
• largebract spiderling (Boerhavia wrightii)
• longlobe four o'clock (Mirabilis tenuiloba)
• marvel of Peru (Mirabilis jalapa)
• (Pisonia capitata)
• (Pisonia aculeata)
• (Boerhavia purpurascens)
• scarlet four o'clock (Mirabilis coccinea)
• scarlet spiderling (Boerhavia coccinea)
• slender spiderling (Boerhavia triquetra)
• slimstalk spiderling (Boerhavia gracillima)
• (Mirabilis oxybaphoides)
• sweet four o'clock (Mirabilis longiflora)
• (Boerhavia megaptera)
• (Mirabilis albida)

Nymphaeaceae[]

• blue water lily (Nymphaea elegans)
• (Nymphaea ampla)
• Mexican water lily (Nymphaea mexicana)
• yellow pond lily (Nuphar lutea)

Oleaceae[]

• Arabian jasmine (Jasminum sambac)
• (Forestiera rhamnifolia)
• (Fraxinus trifoliolata)
• (Forestiera shrevei)
• devilwood (Osmanthus americanus)
• Goodding's ash (Fraxinus gooddingii)
• rough menodora (Menodora scabra)
• spiny menodora (Menodora spinescens)
• stretchberry (Forestiera pubescens)
• velvet ash (Fraxinus velutina)

Onagraceae[]

• (Oenothera drummondii)
• Berlandier's sundrops (Oenothera berlandieri)
• Booth's suncup (Eremothera boothii)
• California evening primrose (Oenothera californica)
• California suncup (Eulobus californicus)
• common evening primrose (Oenothera biennis)
• creeping water primrose (Ludwigia adscendens)
• delicate clarkia (Clarkia delicata)
• diamond clarkia (Clarkia rhomboidea)
• elegant clarkia (Clarkia unguiculata)
• farewell to spring (Clarkia amoena)
• fireweed (Chamerion angustifolium)
• fourwing evening primrose (Oenothera tetraptera)
• fringed willowherb (Epilobium ciliatum)
• (Gaura hexandra)
• Hooker's evening primrose (Oenothera elata)
• hummingbird trumpet (Epilobium canum)
• (Oenothera kunthiana)
• Lindheimer's beeblossom (Gaura lindheimeri)
• longcapsule suncup (Camissonia chamaenerioides)
• Mexican primrose-willow (Ludwigia octovalvis)
• narrowleaf suncup (Eremothera refracta)
• (Oenothera neomexicana)
• pinkladies (Oenothera speciosa)
• prairie evening primrose (Oenothera albicaulis)
• rose evening primrose (Oenothera rosea)
• (Oenothera stubbei)
• scarlet beeblossom (Gaura coccinea)
• (Oenothera brachycarpa)
• silky evening primrose (Oenothera pubescens)
• (Calylophus toumeyi)
• tufted evening primrose (Oenothera caespitosa)
• velvetweed (Gaura mollis)
• yellow cups (Chylismia brevipes)
• (Oenothera flava)

Ophioglossaceae[]

• limestone adderstongue (Ophioglossum engelmannii)
• rattlesnake fern (Botrychium virginianum)
• (Ophioglossum nudicaule)

Opiliaceae[]

• (Agonandra racemosa)

Orchidaceae[]

• autumn coralroot (Corallorhiza odontorhiza)
• Chiricahua adder's-mouth orchid (Malaxis macrostachya)
• (Cyrtopodium punctatum)
• daddy longlegs orchid (Brassavola cucullata)
• (Laelia eyermaniana)
• (Spiranthes polyantha)
• hooded coralroot (Corallorhiza striata)
• Huachuca Mountain adder's-mouth orchid (Malaxis corymbosa)
• largeflower crested coralroot (Hexalectris grandiflora)
• leafless beaked lady orchid (Sacoila lanceolata)
• Michaux's orchid (Habenaria quinqueseta)
• pine-pink (Bletia purpurea)
• (Oncidium cebolleta)
• (Platanthera brevifolia)
• spotted coralroot (Corallorhiza maculata)
• stream orchid (Epipactis gigantea)
• threebirds (Triphora trianthophora)
• (Platanthera limosa)
• (Liparis vexillifera)

Orobanchaceae[]

• alpine cancer-root (Conopholis alpina)
• American cancer-root (Conopholis americana)
• Applegate's Indian paintbrush (Castilleja applegatei)
• (Buchnera obliqua)
• (Brachystigma wrightii)
• Cooper's broomrape (Orobanche cooperi)
• (Seymeria bipinnatisecta)
• (Castilleja patriotica)
• lesser Indian paintbrush (Castilleja minor)
• (Pedicularis angustifolia)
• (Lamourouxia viscosa)
• (Buchnera pusilla)
• (Castilleja austromontana)
• (Castilleja tenuiflora)
• (Orobanche multicaulis)
• (Castilleja nervata)

Oxalidaceae[]

• alpine woodsorrel (Oxalis alpina)
• broadleaf woodsorrel (Oxalis latifolia)
• creeping woodsorrel (Oxalis corniculata')
• (Oxalis drummondii)
• (Oxalis hernandesii)
• (Oxalis decaphylla)

Papaveraceae[]

• blackspot hornpoppy (Glaucium corniculatum)
• bush poppy (Dendromecon rigida)
• California bearpoppy (Arctomecon californica)
• California poppy (Eschscholzia californica)
• common bearpoppy (Arctomecon humilis)
• corn poppy (Papaver rhoeas)
• Coulter's Matilija poppy (Romneya coulteri)
• creamcups (Platystemon californicus)
• crested pricklypoppy (Argemone polyanthemos)
• (Corydalis curvisiliqua)
• desert poppy (Eschscholzia glyptosperma)
• drug fumitory (Fumaria officinalis)
• fineleaf fumitory (Fumaria parviflora)
• fire poppy (Papaver californicum)
• flatbud pricklypoppy (Argemone munita)
• golden eardrops (Dicentra chrysantha)
• Mexican pricklypoppy (Argemone mexicana)
• Mojave pricklypoppy (Argemone corymbosa)
• opium poppy (Papaver somniferum)
• Pacific bleeding heart (Dicentra formosa)
• pale Mexican pricklypoppy (Argemone ochroleuca)
• Parish's poppy (Eschscholzia parishii)
• scrambled eggs (Corydalis aurea)
• (Argemone gracilenta)

Passifloraceae[]

• (Passiflora arizonica)
• corkystem passionflower (Passiflora suberosa)
• cupped passionflower (Passiflora bryonioides)
• damiana (Turnera diffusa)
• grape-leafed passion vine (Passiflora vitifolia)
• (Passiflora mexicana)
• scarlet passionflower (Passiflora coccinea)
• (Passiflora filipes)
• twoflower passionflower (Passiflora biflora)
• winged-stem passionflower (Passiflora alata)
• yellow alder (Turnera ulmifolia)

Pedaliaceae[]

• sesame (Sesamum indicum)

Phrymaceae[]

• bush monkeyflower (Diplacus longiflorus)
• Cleveland monkeyflower (Diplacus clevelandii)
• (Mimulus verbenaceus)
• (Mimulus eastwoodiae)
• Jacumba monkeyflower (Mimulus aridus)
• little redstem monkeyflower (Mimulus rubellus)
• manyflowered monkeyflower (Mimulus floribundus)
• (Mimulus puniceus)
• seep monkeyflower (Mimulus guttatus)
• sticky monkeyflower (Mimulus aurantiacus)
• (Mimulus dentilobus)

Phyllanthaceae[]

• (Phyllanthus evanescens)
• smartweed leaf-flower (Phyllanthus polygonoides)

Phytolaccaceae[]

• anamu (Petiveria alliacea)
• pokeberry (Phytolacca icosandra)
• rougeplant (Rivina humilis)

Picramniaceae[]

• Mexican alvaradoa (Alvaradoa amorphoides)

Picrodendraceae[]

• Hall's shrubby-spurge (Tetracoccus hallii)
• red shrubby-spurge (Tetracoccus dioicus)

Pinaceae[]

• Apache pine (Pinus engelmannii)
• Arizona pine (Pinus arizonica)
• bishop pine (Pinus muricata)
• border pinyon (Pinus discolor)
• Chihuahuan pine (Pinus leiophylla)
• Douglas-fir (Pseudotsuga menziesii)
• Durango fir (Abies durangensis)
• egg cone pine (Pinus oocarpa)
• Jeffrey pine (Pinus jeffreyi)
• lodgepole pine (Pinus contorta)
• Lumholtz's pine (Pinus lumholtzii)
• Mexican pinyon (Pinus cembroides)
• ocote (Pinus herrerae)
• Parry pinyon (Pinus quadrifolia)
• ponderosa pine (Pinus ponderosa)
• smooth-bark Mexican pine (Pinus pseudostrobus)
• southwestern white pine (Pinus strobiformis)
• sugar pine (Pinus lambertiana)
• thinleaf pine (Pinus maximinoi)
• twoneedle pinyon (Pinus edulis)

Piperaceae[]

• four-leaved peperomia (Peperomia tetraphylla)
• (Piper hispidum)
• (Piper jaliscanum)
• Vera Cruz pepper (Piper auritum)

Plantaginaceae[]

• baby jump-up (Mecardonia procumbens)
• (Galvezia juncea)
• balloonbush (Epixiphium wislizeni)
• (Penstemon campanulatus)
• (Penstemon cardinalis)
• (Penstemon discolor)
• Chinese houses (Collinsia heterophylla)
• Cleveland's beardtongue (Penstemon clevelandii)
• (Plantago bigelovii)
• (Penstemon dasyphyllus)
• common plantain (Plantago major)
• common snapdragon (Antirrhinum majus)
• (Russelia polyedra)
• (Bacopa repens)
• desert Indianwheat (Plantago ovata)
• dog's mouth (Pseudorontium cyathiferum)
• (Penstemon fendleri)
• ghost flower (Mohavea confertiflora)
• (Penstemon ambiguus)
• (Penstemon subulatus)
• hairy purslane speedwell (Veronica peregrina)
• (Schistophragma intermedia)
• heartleaf keckiella (Keckiella cordifolia)
• island bush snapdragon (Galvezia speciosa)
• (Penstemon jamesii)
• (Plantago australis)
• narrowleaf plantain (Plantago lanceolata)
• Parry's beardtongue (Penstemon parryi)
• pineneedle beardtongue (Penstemon pinifolius)
• redseed plantain (Plantago rhodosperma)
• (Penstemon baccharifolius)
• Rocky Mountain penstemon (Penstemon strictus)
• royal penstemon (Penstemon spectabilis)
• (Plantago argyrea)
• scarlet bugler (Penstemon centranthifolius)
• snapdragon vine (Maurandya antirrhiniflora)
• (Penstemon stenophyllus)
• (Penstemon superbus)
• Texas toadflax (Nuttallanthus texanus)
• Thurber's penstemon (Penstemon thurberi)
• twining snapdragon (Antirrhinum filipes)
• violet snapdragon (Sairocarpus nuttallianus)
• Virginia plantain (Plantago virginica)
• water hyssop (Bacopa monnieri)
• (Sairocarpus watsonii)
• whitemargin beardtongue (Penstemon albomarginatus)
• whitewoolly twintip (Stemodia durantifolia)
• woolly plantain (Plantago patagonica)
• (Penstemon wrightii)
• yellow bush penstemon (Keckiella antirrhinoides)

Platanaceae[]

• Arizona sycamore (Platanus wrightii)
• California sycamore (Platanus racemosa)

Plumbaginaceae[]

• Cape plumbago (Plumbago auriculata)
• doctorbush (Plumbago scandens)
• marsh rosemary (Limonium californicum)

Poaceae[]

• African lovegrass (Eragrostis echinochloidea)
• (Bouteloua alamosana)
• alkali sacaton (Sporobolus airoides)
• (Leptochloa panicoides)
• Angleton bluestem (Dichanthium aristatum)
• annual bluegrass (Poa annua)
• annual canarygrass (Phalaris canariensis)
• annual muhly (Muhlenbergia minutissima)
• annual rabbitsfoot grass (Polypogon monspeliensis)
• Arabian schismus (Schismus arabicus)
• (Setaria arizonica)
• Arizona brome (Bromus carinatus)
• Arizona cottontop (Digitaria californica)
• (Muhlenbergia arizonica)
• (Urochloa arizonica)
• (Aristida arizonica)
• (Elymus arizonicus)
• (Paspalum paniculatum)
• (Digitaria bicornis)
• bahiagrass (Paspalum notatum)
• bamboo muhly (Muhlenbergia dumosa)
• barnyard grass (Echinochloa crus-galli)
• basketgrass (Oplismenus hirtellus)
• (Eriochloa aristata)
• (Polypogon viridis)
• big bluestem (Andropogon gerardi)
• Bigelow's bluegrass (Poa bigelovii)
• big galleta (Pleuraphis rigida)
• big sacaton (Sporobolus wrightii)
• black grama (Bouteloua eriopoda)
• (Digitaria ternata)
• black spear grass (Heteropogon contortus)
• blue grama (Bouteloua gracilis)
• blue panicum (Panicum antidotale)
• bristly wolfstail (Lycurus setosus)
• broadleaf carpetgrass (Axonopus compressus)
• browntop signalgrass (Urochloa fusca)
• (Panicum bulbosum)
• (Muhlenbergia emersleyi)
• (Setaria adhaerens)
• Burmann's basketgrass (Oplismenus burmannii)
• burrograss (Scleropogon brevifolius)
• (Enteropogon chlorideus)
• bush muhly (Muhlenbergia porteri)
• California satintail (Imperata brevifolia)
• California threeawn (Aristida californica)
• cane bluestem (Bothriochloa barbinodis)
• (Eriochloa lemmonii)
• (Lasiacis procerrima)
• cattail grass (Setaria pumila)
• cheatgrass (Bromus tectorum)
• (Eragrostis erosa)
• (Muhlenbergia polycaulis)
• (Lasiacis ruscifolia)
• Colombian bluestem (Schizachyrium condensatum)
• (Muhlenbergia pectinata)
• common barley (Hordeum vulgare)
• common Mediterranean grass (Schismus barbatus)
• common oat (Avena sativa)
• common reed (Phragmites australis)
• common wheat (Triticum aestivum)
• common wild oat (Avena fatua)
• (Lycurus phleoides)
• cotta grass (Cottea pappophoroides)
• (Schizachyrium sanguineum)
• crimson fountaingrass (Pennisetum setaceum)
• dallisgrass (Paspalum dilatatum)
• deergrass (Muhlenbergia rigens)
• (Muhlenbergia fragilis)
• desert needlegrass (Achnatherum speciosum)
• ditch rabbitsfoot grass (Polypogon interruptus)
• Egyptian grass (Dactyloctenium aegyptium)
• (Eleusine multiflora)
• feather fingergrass (Chloris virgata)
• feathertop (Pennisetum villosum)
• foldedleaf grass (Andropogon fastigiatus)
• (Aegopogon tenellus)
• giant reed (Arundo donax)
• giant wildrye (Leymus condensatus)
• goldentop grass (Lamarckia aurea)
• (Eragrostis ciliaris)
• (Muhlenbergia eludens)
• (Muhlenbergia ramulosa)
• green sprangletop (Leptochloa dubia)
• (Setaria grisebachii)
• Gulf muhly (Muhlenbergia capillaris)
• hairy crabgrass (Digitaria sanguinalis)
• (Paspalum pubiflorum)
• (Paspalum hartwegianum)
• (Paspalum clavuliferum)
• hood canarygrass (Phalaris paradoxa)
• hurricane grass (Bothriochloa pertusa)
• Indian goosegrass (Eleusine indica)
• Indiangrass (Sorghastrum nutans)
• Indian ricegrass (Achnatherum hymenoides)
• inland saltgrass (Distichlis spicata)
• (Digitaria horizontalis)
• James' galleta (Pleuraphis jamesii)
• Johnsongrass (Sorghum halepense)
• (Leptochloa virgata)
• jungle rice (Echinochloa colona)
• Kleberg bluestem (Dichanthium annulatum)
• knotgrass (Paspalum distichum)
• (Microchloa kunthii)
• (Paspalum convexum)
• Lehmann lovegrass (Eragrostis lehmanniana)
• lemongrass (Cymbopogon citratus)
• (Setaria liebmannii)
• little barley (Hordeum pusillum)
• little bluestem (Schizachyrium scoparium)
• littleseed canarygrass (Phalaris minor)
• littleseed muhly (Muhlenbergia microsperma)
• (Muhlenbergia longiligula)
• (Tridens eragrostoides)
• low woollygrass (Dasyochloa pulchella)
• Malabar sprangletop (Leptochloa fusca)
• marine couch (Sporobolus virginicus)
• marsh bristlegrass (Setaria parviflora)
• (Eragrostis barrelieri)
• (Muhlenbergia tenuifolia)
• Mexican feathergrass (Nassella tenuissima)
• (Tripsacum lanceolatum)
• Mexican lovegrass (Eragrostis mexicana)
• Mexican panicgrass (Panicum hirticaule)
• Mexican weeping bamboo (Otatea acuminata)
• (Chloris submutica)
• (Digitaria panicea)
• mission grass (Pennisetum polystachion)
• mountain muhly (Muhlenbergia montana)
• (Eragrostis lugens)
• mouse barley (Hordeum murinum)
• (Leptochloa panicea)
• needle grama (Bouteloua aristidoides)
• (Hesperostipa neomexicana)
• (Muhlenbergia pauciflora)
• nineawn pappusgrass (Enneapogon desvauxii)
• (Festuca subverticillata)
• (Anthephora hermaphrodita)
• Palmer saltgrass (Distichlis palmeri)
• para grass (Brachiaria mutica)
• Parry's grama (Bouteloua parryi)
• (Blepharoneuron tricholepis)
• (Piptochaetium fimbriatum)
• pitscale grass (Hackelochloa granularis)
• (Setaria macrostachya)
• plains lovegrass (Eragrostis intermedia)
• (Trisetum interruptum)
• prairie wedgescale (Sphenopholis obtusata)
• (Brachiaria plantaginea)
• (Bromus porteri)
• poverty threeawn (Aristida divaricata)
• prairie Junegrass (Koeleria macrantha)
• (Piptochaetium pringlei)
• (Pennisetum advena)
• purple grama (Bouteloua radicosa)
• (Muhlenbergia rigida)
• purple threeawn (Aristida purpurea)
• (Arundinella hispida)
• rat-tail fescue (Vulpia myuros)
• red brome (Bromus rubens)
• red fescue (Festuca rubra)
• (Aegopogon cenchroides)
• rescuegrass (Bromus catharticus)
• ripgut brome (Bromus diandrus)
• rose Natal grass (Melinis repens)
• (Bouteloua rothrockii)
• rough bentgrass (Agrostis scabra)
• running mountaingrass (Oplismenus compositus)
• (Paspalum langei)
• rye (Secale cereale)
• sand dropseed (Sporobolus cryptandrus)
• Santa Rita Mountain grama (Bouteloua eludens)
• (Muhlenbergia virescens)
• (Schizachyrium brevifolium)
• (Erioneuron avenaceum)
• silver beardgrass (Bothriochloa laguroides)
• (Aristida schiedeana)
• sixweeks fescue (Vulpia octoflora)
• sixweeks grama (Bouteloua barbata)
• sixweeks threeawn (Aristida adscensionis)
• slender grama (Bouteloua repens)
• slender hairgrass (Deschampsia elongata)
• slender little bluestem (Schizachyrium tenerum)
• (Cenchrus brownii)
• slim tridens (Tridens muticus)
• small fescue (Vulpia microstachys)
• smooth crabgrass (Digitaria ischaemum)
• smut grass (Sporobolus indicus)
• (Enneapogon mollis)
• Sonoran panicgrass (Panicum sonorum)
• sourgrass (Digitaria insularis)
• southern crabgrass (Digitaria ciliaris)
• southern sandbur (Cenchrus echinatus)
• (Muhlenbergia palmeri)
• (Aristida ternipes)
• spike bentgrass (Agrostis exarata)
• (Trachypogon spicatus)
• spike dropseed (Sporobolus contractus)
• (Brachiaria reptans)
• sprucetop grama (Bouteloua chondrosioides)
• St. Augustine grass (Stenotaphrum secundatum)
• (Leptochloa viscida)
• stinkgrass (Eragrostis cilianensis)
• (Polypogon elongatus)
• streambed bristlegrass (Setaria leucopila)
• (Heteropogon melanocarpus)
• (Chloris barbata)
• (Muhlenbergia elongata)
• tall fescue (Festuca arundinacea)
• tapered rosette grass (Dichanthelium acuminatum)
• (Eriochloa acuminata)
• (Schizachyrium cirratum)
• (Muhlenbergia texana)
• thin paspalum (Paspalum setaceum)
• tobosagrass (Pleuraphis mutica)
• (Digitaria argillacea)
• (Panicum trichoides)
• tufted lovegrass (Eragrostis pectinacea)
• (Chloris verticillata)
• (Chloris crinita)
• Uruguayan pampas grass (Cortaderia selloana)
• vine mesquite (Panicum obtusum)
• (Paspalum virletii)
• weeping lovegrass (Eragrostis curvula)
• whiplash pappusgrass (Pappophorum vaginatum)
• (Sporobolus coromandelianus)
• (Panicum alatum)
• (Agrostis hyemalis)
• (Elionurus barbiculmis)
• (Aristida pansa)

Polemoniaceae[]

• Bigelow's linanthus (Linanthus bigelovii)
• (Giliastrum rigidulum)
• bluehead gilia (Gilia capitata)
• (Leptodactylon californicum)
• (Loeselia greggii)
• desert beauty (Linanthus bellus)
• (Ipomopsis thurberi)
• false babystars (Leptosiphon androsaceus)
• (Loeselia glandulosa)
• granite prickly phlox (Linanthus pungens)
• ground pink (Linanthus dianthiflorus)
• Jones' linanthus (Linanthus jonesii)
• Lemmon's linanthus (Leptosiphon lemmonii)
• lesser yellowthroat gilia (Gilia flavocincta)
• (Ipomopsis macrosiphon)
• (Ipomopsis macombii)
• manyflowered ipomopsis (Ipomopsis multiflora)
• miniature woollystar (Eriastrum diffusum)
• Nuttall's linanthus (Leptosiphon nuttallii)
• (Ipomopsis pinnata)
• Santa Catalina Mountain phlox (Phlox tenuifolia)
• star gilia (Gilia stellata)

Polygalaceae[]

• (Polygala barbeyana)
• (Monnina wrightii)
• glandleaf milkwort (Polygala macradenia)
• (Polygala glochidiata)
• (Polygala obscura)
• white milkwort (Polygala alba)
• (Polygala hemipterocarpa)

Polygonaceae[]

• bastardsage (Eriogonum wrightii)
• bitter dock (Rumex obtusifolius)
• canaigre dock (Rumex hymenosepalus)
• Chiricahua Mountain dock (Rumex orthoneurus)
• clustered dock (Rumex conglomeratus)
• confederate vine (Antigonon leptopus)
• curlytop knotweed (Polygonum lapathifolium)
• devil's spineflower (Chorizanthe rigida)
• eastern Mojave buckwheat (Eriogonum fasciculatum)
• flatcrown buckwheat (Eriogonum deflexum)
• fringed spineflower (Chorizanthe fimbriata)
• kidneyleaf buckwheat (Eriogonum reniforme)
• naked buckwheat (Eriogonum nudum)
• narrowleaf dock (Rumex stenophyllus)
• oval-leaf knotweed (Polygonum arenastrum)
• Palmer's buckwheat (Eriogonum palmerianum)
• Pennsylvania smartweed (Polygonum pensylvanicum)
• prostrate knotweed (Polygonum aviculare)
• rabbit's purse (Harfordia macroptera)
• (Eriogonum atrorubens)
• saffron buckwheat (Eriogonum crocatum)
• sheep sorrel (Rumex acetosella)
• silversheath knotweed (Polygonum argyrocoleon)
• (Coccoloba goldmanii)
• (Eriogonum polycladon)
• spotted buckwheat (Eriogonum maculatum)
• spotted ladysthumb (Persicaria maculosa)
• Thomas' buckwheat (Eriogonum thomasii)
• Thurber's buckwheat (Eriogonum thurberi)
• toothed dock (Rumex dentatus)
• water-pepper (Persicaria hydropiper)
• willow dock (Rumex salicifolius)
• woodland pterostegia (Pterostegia drymarioides)

Polypodiaceae[]

• (Pleopeltis thyssanolepis)
• narrow strapfern (Campyloneurum angustifolium)
• (Pleopeltis polylepis)
• resurrection fern (Pleopeltis polypodioides)
• (Pleopeltis riograndensis)
• western polypody (Polypodium hesperium)

Pontederiaceae[]

• blue mudplantain (Heteranthera limosa)
• common water hyacinth (Eichhornia crassipes)
• (Heteranthera peduncularis)
• peacock hyacinth (Eichhornia azurea)
• (Heteranthera rotundifolia)

Portulacaceae[]

• kiss me quick (Portulaca pilosa)
• rose moss (Portulaca grandiflora)
• shrubby purslane (Portulaca suffrutescens)
• silkcotton purslane (Portulaca halimoides)

Potamogetonaceae[]

• horned pondweed (Zannichellia palustris)
• longleaf pondweed (Potamogeton nodosus)
• (Stuckenia pectinatus)

Primulaceae[]

• chaffweed (Anagallis minima)
• (Samolus vagans)
• (Bonellia macrocarpa)
• limewater brookweed (Samolus ebracteatus)
• Rusby's primrose (Primula rusbyi)
• seaside brookweed (Samolus valerandi)
• (Ardisia revoluta)
• western rockjasmine (Androsace occidentalis)

Psilotaceae[]

• flatfork fern (Psilotum complanatum)
• whisk fern (Psilotum nudum)

Pteridaceae[]

• Alabama lipfern (Cheilanthes alabamensis)
• (Cheilanthes arizonica)
• (Cheilanthes wootonii)
• Cochise scaly cloakfern (Astrolepis cochisensis)
• common maidenhair (Adiantum capillus-veneris)
• (Bommeria hispida)
• Cretan brake (Pteris cretica)
• (Pityrogramma calomelanos)
• (Cheilanthes lindheimeri)
• five-finger fern (Adiantum pedatum)
• (Adiantum tricholepis)
• (Cheilanthes kaulfussii)
• golden lipfern (Cheilanthes bonariensis)
• (Cheilanthes yavapensis)
• hairy false cloak fern (Argyrochosma incana)
• (Pellaea cordifolia)
• Jones' false cloak fern (Argyrochosma jonesii)
• (Notholaena lemmonii)
• (Cheilanthes lendigera)
• (Pellaea ovata)
• Parry's lipfern (Cheilanthes parryi)
• (Adiantum concinnum)
• (Cheilanthes pringlei)
• small-leaf false cloak fern (Argyrochosma microphylla)
• (Cheilanthes microphylla)
• southwestern false cloak fern (Argyrochosma limitanea)
• spiny cliffbrake (Pellaea truncata)
• star cloak fern (Notholaena standleyi)
• (Pellaea ternifolia)
• villous lipfern (Cheilanthes villosa)
• (Astrolepis sinuata)
• (Cheilanthes leucopoda)
• (Astrolepis windhamii)
• woolly lipfern (Cheilanthes tomentosa)
• (Pellaea wrightiana)
• (Cheilanthes wrightii)

Ranunculaceae[]

• alkali buttercup (Ranunculus cymbalaria)
• (Ranunculus arizonicus)
• Arizona mousetail (Myosurus cupulatus)
• candle anemone (Anemone cylindrica)
• (Aquilegia triternata)
• (Delphinium andesicola)
• Colorado blue columbine ( Aquilegia coerulea)
• Drummond's clematis (Clematis drummondii)
• doubtful knight's-spur (Consolida ajacis)
• eastern red columbine (Aquilegia canadensis)
• Latin American buttercup (Ranunculus fascicularis)
• longspur columbine (Aquilegia longissima)
• red larkspur (Delphinium cardinale)
• (Delphinium scaposum)
• tuber anemone (Anemone tuberosa)
• water buttercup (Ranunculus aquatilis)
• western columbine (Aquilegia formosa)

Resedaceae[]

• lineleaf whitepuff (Oligomeris linifolia)
• (Forchhammeria watsonii)

Rhamnaceae[]

• birchleaf buckthorn (Rhamnus betulifolia)
• bitter snakewood (Condalia globosa)
• buckbrush (Ceanothus depressus)
• (Condalia correllii)
• coyotillo (Karwinskia humboldtiana)
• (Ceanothus buxifolius)
• deerbrush (Ceanothus integerrimus)
• (Gouania rosei)
• hollyleaf redberry (Rhamnus ilicifolia)
• jujube (Ziziphus jujuba)
• (Condalia spathulata)
• Las Animas nakedwood (Colubrina californica)
• lotebush (Ziziphus obtusifolia)
• redberry buckthorn (Rhamnus crocea)
• redheart (Ceanothus spinosus)
• San Diego ceanothus (Ceanothus cyaneus)
• spinebush (Adolphia californica)
• (Condalia warnockii)
• (Sageretia wrightii)

Rhizophoraceae[]

• red mangrove (Rhizophora mangle)

Rosaceae[]

• antelope bitterbrush (Purshia tridentata)
• Apache plume (Fallugia paradoxa)
• (Sorbus dumosa)
• (Rosa arizonica)
• Arizona rosewood (Vauquelinia californica)
• Baja rose (Rosa minutifolia)
• blackbrush (Coleogyne ramosissima)
• black cherry (Prunus serotina)
• chamise (Adenostoma fasciculatum)
• desert apricot (Prunus fremontii)
• desert bitterbrush (Purshia glandulosa)
• desert peach (Prunus andersonii)
• European pear (Pyrus communis)
• fernbush (Chamaebatiaria millefolium)
• Gentry cherry (Prunus gentryi)
• Himalayan blackberry (Rubus discolor)
• hollyleaf cherry (Prunus ilicifolia)
• (Amelanchier denticulata)
• mountain mahogany (Cercocarpus montanus)
• (Potentilla oblanceolata)
• oceanspray (Holodiscus discolor)
• peach (Prunus persica)
• redshanks (Adenostoma sparsifolium)
• rockspiraea (Holodiscus dumosus)
• scarlet cinquefoil (Potentilla thurberi)
• serviceberry (Amelanchier alnifolia)
• shrubby cinquefoil (Potentilla fruticosa)
• (Vauquelinia corymbosa)
• Stansbury cliffrose (Purshia stansburiana)
• tall hairy agrimony (Agrimonia gryposepala)
• toyon (Heteromeles arbutifolia)
• Virginia strawberry (Fragaria virginiana)

Rubiaceae[]

• bracted bedstraw (Galium microphyllum)
• bristly bedstraw (Galium uncinulatum)
• cleavers (Galium aparine)
• common buttonbush (Cephalanthus occidentalis)
• copalquín (Hintonia latiflora)
• David's milkberry (Chiococca alba)
• firecrackerbush (Bouvardia ternifolia)
• Florida pusley (Richardia scabra)
• limestone bedstraw (Galium proliferum)
• Mexican bedstraw (Galium mexicanum)
• Mexican buttonbush (Cephalanthus salicifolius)
• (Crusea diversifolia)
• poorjoe (Diodia teres)
• pygmy bluet (Houstonia wrightii)
• (Spermacoce confusa)
• scarlet bush (Hamelia patens)
• shrubby false buttonweed (Spermacoce verticillata)
• (Spermacoce tenuior)
• starry bedstraw (Galium stellatum)
• (Diodia sarmentosa)
• (Mitracarpus hirtus)
• (Mitracarpus breviflorus)
• woodland false buttonweed (Spermacoce assurgens)

Rutaceae[]

• (Amyris balsamifera)
• bitter orange (Citrus aurantium)
• (Thamnosma texanum)
• grapefruit (Citrus paradisi)
• hoptree (Ptelea trifoliata)
• Key lime (Citrus aurantifolia)
• lemon (Citrus limon)
• lime pricklyash (Zanthoxylum fagara)
• (Choisya dumosa)
• orange (Citrus sinensis)
• (Esenbeckia flava)
• rue (Ruta graveolens)
• spicebush (Cneoridium dumosum)
• turpentinebroom (Thamnosma montana)
• white sapote (Casimiroa edulis)

Salicaceae[]

• Bonpland willow (Salix bonplandiana)
• brush holly (Xylosma flexuosa)
• Frémont cottonwood (Populus fremontii)
• Goodding's willow (Salix gooddingii)
• (Populus brandegeei)
• narrowleaf willow (Salix exigua)
• quaking aspen (Populus tremuloides)
• (Salix exilifolia)

Salviniaceae[]

• Carolina mosuitofern (Azolla caroliniana)
• Mexican mosquitofern (Azolla mexicana)
• Pacific mosquitofern (Azolla filiculoides)

Santalaceae[]

• Bollean mistletoe (Phoradendron bolleanum)
• downy mistletoe (Phoradendron capitellatum)
• (Phoradendron quadrangulare)
• Huachuca Mountain dwarf mistletoe (Arceuthobium gillii)
• juniper mistletoe (Phoradendron juniperinum)
• mesquite mistletoe (Phoradendron californicum)
• pineland dwarf mistletoe (Arceuthobium vaginatum)
• western dwarf mistletoe (Arceuthobium campylopodum)

Sapindaceae[]

• bigtooth maple (Acer grandidentatum)
• California buckeye (Aesculus californica)
• (Cardiospermum corindum)
• Florida hopbush (Dodonaea viscosa)
• love in a puff (Cardiospermum halicacabum)
• Mexican buckeye (Ungnadia speciosa)
• (Paullinia fuscescens)
• Parry buckeye (Aesculus parryi)
• (Serjania mexicana)
• western soapberry (Sapindus saponaria)

Sapotaceae[]

• (Sideroxylon occidentale)
• (Sideroxylon persimile)
• mamey sapote (Pouteria sapota)
• sapodilla (Manilkara zapota)
• (Sideroxylon tepicense)

Saururaceae[]

• yerba mansa (Anemopsis californica)

Saxifragaceae[]

• pink alumroot (Heuchera rubescens)
• (Saxifraga eriophora)

Schisandraceae[]

• star anise (Illicium verum)

Schoepfiaceae[]

• (Schoepfia schreberi)

Scrophulariaceae[]

• California figwort (Scrophularia californica)
• (Leucophyllum laevigatum)
• common mullein (Verbascum thapsus)
• (Capraria biflora)
• poverty bush (Eremophila decipiens)
• (Leucophyllum zygophyllum)
• Rio Bravo sage (Leucophyllum langmaniae)
• Rio Grande butterfly bush (Buddleja sessiliflora)
• (Leucophyllum pruinosum)
• (Leucophyllum candidum)
• Texas ranger (Leucophyllum frutescens)
• woolly butterfly bush (Buddleja marrubiifolia)

Selaginellaceae[]

• (Selaginella arizonica)
• (Selaginella peruviana)
• (Selaginella novoleonensis)
• (Selaginella pilifera)
• (Selaginella rupincola)
• (Selaginella underwoodii)
• (Selaginella wrightii)

Simaroubaceae[]

• crucifixion thorn (Castela emoryi)
• (Castela stewartii)
• tree of heaven (Ailanthus altissima)

Simmondsiaceae[]

• jojoba (Simmondsia chinensis)

Solanaceae[]

• American black nightshade (Solanum americanum)
• apple of Peru (Nicandra physalodes)
• (Lycium exsertum)
• Baja desert-thorn (Lycium brevipes)
• Berlandier's wolfberry (Lycium berlandieri)
• black nightshade (Solanum nigrum)
• Brazilian nightshade (Solanum seaforthianum)
• broadleaf groundcherry (Physalis latiphysa)
• buffalobur nightshade (Solanum rostratum)
• bush-violet (Browallia eludens)
• California desert-thorn (Lycium californicum)
• chili pepper (Capsicum annuum)
• Chinese lantern (Quincula lobata)
• Chinese thorn-apple (Datura quercifolia)
• Cleveland's tobacco (Nicotiana clevelandii)
• creeping false holly (Jaltomata procumbens)
• cultivated tobacco (Nicotiana tabacum)
• cutleaf groundcherry (Physalis angulata)
• desert thorn-apple (Datura discolor)
• (Lycium macrodon)
• (Solanum nigrescens)
• Frémont's desert-thorn (Lycium fremontii)
• fuzzyfruit nightshade (Solanum candidum)
• heartleaf nightshade (Solanum cardiophyllum)
• (Solanum hindsianum)
• husk tomato (Physalis pubescens)
• ivyleaf groundcherry (Physalis hederifolia)
• Jamaican forget-me-not (Browallia americana)
• Jerusalem cherry (Solanum pseudocapsicum)
• jimsonweed (Datura stramonium)
• (Solanum heterodoxum)
• (Margaranthus solanaceus)
• (Lycium parishii)
• potatotree (Solanum erianthum)
• pricklyburr (Datura innoxia)
• pygmy groundcherry (Physalis minima)
• sacred thorn-apple (Datura wrightii)
• seaside petunia (Calibrachoa parviflora)
• sharpleaf groundcherry (Physalis acutifolia)
• silverleaf nightshade (Solanum elaeagnifolium)
• sonoita nightshade (Solanum adscendens)
• (Solanum lumholtzianum)
• southwestern groundcherry (Physalis caudella)
• sticky nightshade (Solanum sisymbriifolium)
• Tex-Mex tobacco (Nicotiana plumbaginifolia)
• tomato (Solanum lycopersicon)
• tree tobacco (Nicotiana glauca)
• (Physalis patula)
• violetflower petunia (Petunia integrifolia)
• yellow nightshade groundcherry (Physalis crassifolia)

Stegnospermataceae[]

Talinaceae[]

• jewels of Opar (Talinum paniculatum)
• Ceylon spinach (Talinum triangulare)

Tamaricaceae[]

• Athel tamarisk (Tamarix aphylla)
• five-stamen tamarisk (Tamarix chinensis)

Tetrachondraceae[]

• juniper leaf (Polypremum procumbens)

Thelypteridaceae[]

• (Thelypteris rudis)
• (Thelypteris hispidula)
• showy maiden fern (Christella puberula)
• softhairy maiden fern (Thelypteris pilosa)

Tropaeolaceae[]

• nasturtium (Tropaeolum majus)

Typhaceae[]

• broadleaf cattail (Typha latifolia)
• dwarf cattail (Typha angustifolia)
• southern cattail (Typha domingensis)

Ulmaceae[]

• Siberian elm (Ulmus pumila)

Urticaceae[]

• artillery plant (Pilea microphylla)
• (Pouzolzia occidentalis)
• dwarf nettle (Urtica urens)
• (Urera caracasana)
• Florida pellitory (Parietaria floridana)
• heartleaf nettle (Urtica chamaedryoides)
• (Urtica gracilenta)
• Pennsylvania pellitory (Parietaria pensylvanica)

Verbenaceae[]

• bigbract verbena (Verbena bracteata)
• brushland shrubverbena (Lantana achyranthifolia)
• (Verbena carolina)
• (Priva lappulacea)
• common lantana (Lantana camara)
• common vervain (Verbena officinalis)
• Dakota mock vervain (Glandularia bipinnatifida)
• (Verbena canescens)
• Mexican oregano (Lippia graveolens)
• (Glandularia elegans)
• Peruvian verbena (Verbena peruviana)
• (Glandularia pumila)
• (Stachytarpheta frantzii)
• queen's wreath (Petrea volubilis)
• (Verbena tenera)
• rose vervain (Glandularia canadensis)
• sandpaper verbena (Verbena rigida)
• seashore vervain (Verbena litoralis)
• South American mock vervain (Glandularia pulchella)
• southwestern mock vervain (Glandularia gooddingii)
• trailing lantana (Lantana montevidensis)
• turkey tangle fogfruit (Phyla nodiflora)
• West Indian shrubverbena (Lantana urticoides)
• Wright's beebrush (Aloysia wrightii)

Violaceae[]

• (Hybanthus attenuatus)

Vitaceae[]

• canyon grape (Vitis arizonica)
• desert wild grape (Vitis girdiana)
• princess vine (Cissus verticillata)
• sorrelvine (Cissus trifoliata)
• Virginia creeper (Parthenocissus quinquefolia)

Woodsiaceae[]

• (Woodsia cochisensis)
• common ladyfern (Athyrium filix-femina)
• (Woodsia phillipsii)
• Plummer's cliff fern (Woodsia plummerae)
• (Cystopteris reevesiana)

Zamiaceae[]

• chestnut dioon (Dioon edule)

Zygophyllaceae[]

• Arizona poppy (Kallstroemia grandiflora)
• California caltrop (Kallstroemia californica)
• California fagonbush (Fagonia laevis)
• creosote bush (Larrea tridentata)
• puncturevine (Tribulus terrestris)
• sticky fagonbush (Fagonia pachyacantha)
• warty caltrop (Kallstroemia parviflora)