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Presl) Baillon Hist. Pl. 3: 407. 1871. Walter C. Holmes Common names: Durango root Illustrated Basionym: Tricerastes glomerata C. Presl Reliq. Haenk.

shade Generated Map Legacy Map Tex., Mexico (Durango). Only one record of Tinantia anomala is known from Durango. None. None. window.propertiesFromHigherT

all but one species of Arceuthobium (A. verticilliflorum Engelmann from Durango, Mexico), seeds are dispersed by explosive dehiscence. Another feature considered

Utah, Wash., W.Va., Wyo., Mexico (Baja California, Chihuahua, Coahuila, Durango, Mexico, Nuevo León, Sonora). T. Mosquin (1971) found that within populations

Mentioned on page 114. Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Sonora). Varieties 2 (1 in the flora). None. Viola umbraticola var. glaberrima

luciae-julianiae both occur in Mexico. Oenothera dissecta occurs in flats in Durango, Jalisco, San Luis Potosí, and Zacatecas; O. luciae-julianiae occurs in

2–3 mm, whitish, silky-hairy ± throughout, hairs 3–4 mm. 2n = 22 (Mexico: Durango). Phenology: Flowering year-round. Habitat: Desert, often rocky Elevation:

1700–2700 m. Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sinaloa, Sonora). Meiosis occurs in September, with fruits maturing 19

Elevation: 2100–3300 m. Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Nuevo León). Meiosis occurs in July, with fruits maturing 13 to 14 months

Generated Map Legacy Map Tex., Mexico (Baja California Sur, Coahuila, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Tamaulipas). None. None.

Mexico (Chihuahua, Durango, Sonora). Variety madrensis is primarily Mexican, centered in the Sierra Madre Occidental of Chihuahua, Durango, and Sonora, entering

flora). All five varieties occur in northern Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora, and Zacatecas) in oak and conifer woodlands, commonly

m Generated Map Legacy Map N.Mex., Tex., n Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

vegetation Elevation: 30–70 m Generated Map Legacy Map Tex., Mexico (Coahuila, Durango, Hidalgo, Michoacán, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas)

area is A. malvifolia, which occurs in the Mexican states of Chihuahua and Durango. Most of the species of Amoreuxia have been important food plants for indigenous

Map Legacy Map Ariz., N.Mex., Tex., Utah, Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Zacatecas). None. None. window.pr

Nebr., Nev., N.Mex., N.Dak., Oreg., Utah, Wash., Wyo., Mexico (Chihuahua, Durango). Variety pulchellum is the most widespread and common variant of the species

also in Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Sinaloa, Sonora), South America (Argentina), Australia. Morphologically

N.Mex., Tex., Mexico (Baja California, Baja California Sur, Chihuahua, Durango, Nuevo León, Sonora, Zacatecas). Cottsia gracilis is widespread in Arizona

Utah, n Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Nuevo León, Sonora, Zacatecas), sw, c Asia, n Africa, n Atlantic Islands

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Tamaulipas, Zacatecas). None. None. window.propertiesFromH

in Missouri, and south through northern Arkansas and Texas, to Coahuila, Durango, and Nuevo León, Mexico; there are only two isolated records (O. macrocarpa

retherfordii (I. M. Johnston) W. J. Hess & Henrickson is known from Coahuila and Durango in northern Mexico. Williams, K. B. 1971. Ecological and Morphological Variations

Elevation: 600–1300 m. Generated Map Legacy Map Tex., Mexico (Chihuahua, Durango, Hidalgo, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Buddleja

N.Y., Oreg., S.Dak., Tex., Utah, Vt., Wash., Wyo., Mexico (Chihuahua, Durango, Nuevo León). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora, Tamaulipas). In the flora area, Frangula betulifolia

Map Legacy Map Ariz., N.Mex., Okla., Tex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas). The small flowers of Cevallia sinuata have an architecture

Ariz., Colo., Kans., N.Mex., Okla., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). A dominant cholla

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí, Sonora, Zacatecas). Abutilon malacum is found in southwestern

Generated Map Legacy Map B.C., Yukon, Alaska, N.Mex., Mexico (Distrito Federal, Durango), Asia (China, India, Japan, Korea, Pakistan). A collection of Claopodium

m. Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Hidalgo, San Luis Potosí). Subspecies palmeri is found principally in the

(Chihuahua, Coahuila, Durango). Variety angustifolia intergrades with var. tenella across a broad front from southern Texas to eastern Durango. It is locally

Brown (1978). Psilostrophe mexicana R. C. Brown is known from Chihuahua and Durango. Brown, R. C. 1978. Biosystematics of Psilostrophe (Compositae: Helenieae)

Map Legacy Map Ariz., Colo., Nev., N.Mex., Utah, Wyo., Mexico (Chihuahua, Durango, San Luis Potosí). Variety dumosus may be distinguished from var. discolor

Elevation: 1000–2400 m Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Sisyrinchium"

Wiens, distinguished by its yellow leaf hairs, is found in Coahuila and Durango, Mexico. None. Phoradendron villosum subsp. coryae, Phoradendron villosum

Nebr., Nev., N.Mex., Okla., S.Dak., Tex., Utah, Wyo., Mexico (Chihuahua, Durango, Sinaloa, and Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"species"

Elevation: 500–1800 m. Generated Map Legacy Map Tex., Mexico (Chihuahua, Durango, Sonora). In the flora area, Mortonia sempervirens occurs in trans-Pecos

400-–2500 m. Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Variety dioica is

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Tidestromia

Elevation: 900–1700 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Durango, Nuevo León, San Luis Potosí). Dicranocarpus parviflorus is a gypsophile

600-1800 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí). None. None. window.propertiesFromHigherT

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Sonora). Ageratina rothrockii is similar to A. altissima, probably its

Elevation: 1000–2200 m Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Jalisco, Sinaloa, Sonora). Ageratina thyrsiflora is known from the United

600-1000[-1800] m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Acleisanthes"

Mexico) Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas, and southward). Plants of Leibnitzia

Tex., Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Tamaulipas, Zacatecas). None

, N.Mex., Oreg., Tex., Utah, Wash., Wyo., Mexico (Chihuahua, Coahuila, Durango, Nuevo León). Staminate meiosis occurs in September, pistillate in April

Dak., Tex., Utah, Wash., Wyo., Mexico in Baja California, Chihuahua, and Durango. None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Pteridium

N.H., N.Mex., N.Y., Oreg., Vt., Wash., Wis., Wyo., Mexico (Chihuahua, Durango, Hidalgo), Central America (Guatemala). None. None. window.propertiesFr

Map Ariz., Colo., Kans., N.Mex., Okla., Tex., Utah, Mexico (Chihuahua, Durango, Sonora). Baccharis wrightii is recognized by its bushy, broomlike habit

200-1600 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León). Nyctaginia capitata apparently has been introduced in the

500-1500 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango). The stems of Ariocarpus fissuratus are normally flush with the soil surface

Map Ariz., Calif., Nev., N.Mex., Tex., Utah, Mexico (Chuhuahua, Coahuila, Durango, San Luis Potosi, Sonora, Zacatecas). Variety wrightii is remarkably homogeneous

Elevation: 100–200 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Acourtia"

1300–2000 m Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Durango, Sonora). Baccharis bigelovii occurs in the general Chihuahuan Desert region

is L. coahuilensis Henrickson, which is known from Chihuahua, Coahuila, Durango, and Zacatecas, Mexico. It differs from L. multifida in its longer corollas

Coahuila and Nuevo León, northern Zacatecas and San Luis Potosí, and southern Durango, Mexico, 1100 to 2600 m. Two species are self-incompatible and two are self-compatible

m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas). Arida riparia is a distinctive species recognized by its V-shaped

700-2500 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Colo., Mont., Nev., N.Mex., S.Dak., Tex., Utah, Wyo., Mexico (Chihuahua, Durango). Brachytheciastrum fendleri, when treated within Brachythecium, was synonymized

Map Legacy Map Ariz., Calif., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora, Tamaulipas). None. None. window.propertiesFromHigh

Generated Map Legacy Map Ariz., N.Mex., Okla., Tex., Mexico (Chihuahua, Durango, Sinaloa, and Sonora). Specimens intermediate between Juglans major and

distribution in the southwestern United States. The Mexican (Chihuahua, Durango) V. phenax was collected a single time in Texas [where it was named Helianthus

Nebr., N.Mex., N.Dak., Okla., S.Dak., Tex., Wis., Wyo., Mexico (Coahuila, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Linum

m. Generated Map Legacy Map Ariz., Calif., N.Mex., Tex., Utah, Mexico (Durango, Nuevo León, Tamaulipas). Populations of var. barbatus occur predominantly

Tex., Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Sonora). Euphorbia arizonica is distinctive and easily recognized by its

Mex., Okla., Tex., Utah, Mexico (Baja California, Chihuahua, Coahuila, Durango, Sonora). Baccharis salicina is recognized by its narrow, gland-dotted leaves

m. Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León), Central America (Guatemala). Linum rupestre has narrowly funnelform

Elevation: 1200–1700 m. Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Sonora, Zacatecas). In the flora area, Penstemon stenophyllus is known

Generated Map Legacy Map Ariz., Calif., N.Mex., Tex., Utah, Mexico (Chihuahua, Durango, Sonora). Eriogonum polycladon is widely distributed from near Needles,

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango). In the flora area, Penstemon dasyphyllus is known from southeastern Arizona

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"species"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Zacatecas). None. None. window.pr

S.Dak., Tex., Utah, Wyo., Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas). Machaeranthera tanacetifolia is

600–1200 m. Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas). Leucophyllum candidum is known in the flora area only from

1200–2600 m. Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Colima, Durango, Guanajuato, Jalisco, Michoacán, Nayarit, Sinaloa, Sonora, Zacatecas), South

800–1600 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Ariz., Calif., Mexico (Baja California, Baja California Sur, Chihuahua, Durango, Sonora). Ambrosia ambrosioides has been reported from California; it may

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Sonora, Tamaulipas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

500–1900 m Generated Map Legacy Map Tex., Mexico (Coahuila, Nuevo León, Durango, San Luis Potosí). None. None. window.propertiesFromHigherTaxa=[{"rank":"species"

Generated Map Legacy Map Ariz., N.Mex., Mexico (Sonora, Chihuahua, and Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Ranunculus

Elevation: 2000–3000 m. Generated Map Legacy Map N.Mex., Mexico (Chihuahua, Durango, Michoacán). Plants of Pedicularis angustifolia have two-lobed calyces,

Nebr., Nev., N.Mex., N.Y., N.Dak., Oreg., S.Dak., Utah, Wyo., Mexico (Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Plantago"

N.Mex., N.C., Okla., S.C., Tenn., Tex., Va., W.Va., Mexico (Chihuahua, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Plantago"

westward Elevation: 10-1500 m Generated Map Legacy Map Tex., Mexico (Coahuila, Durango, and Nuevo León). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

They have yellow disc corollas, as do most collections from Chihuahua, Durango, Nuevo León, and Tamaulipas. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

sandy places Elevation: 1000-2000 m Generated Map Legacy Map Ariz., Mexico (Durango). Of conservation concern. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Elevation: 1700–2300 m Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Hidalgo, Mexico, Sonora). Psilactis gentryi occurs in the Huachuca Mountains

100–1300 m. Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Tamaulipas). In the flora area, Bernardia

Elevation: 200–600 m. Generated Map Legacy Map Ariz., Tex., Mexico (Coahuila, Durango, Sinaloa, Sonora). B. L. Turner (1982) circumscribed Seymeria bipinnatisecta

0–2200 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí). The morphology of Schoenocaulon texanum is peculiarly

m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Coahuila, Durango). Subspecies pauciflora is known from Cochise County, Arizona, and Hidalgo

Legacy Map Ariz., Mexico (Aguascalientes, Baja California Sur, Chihuahua, Durango, Guanajuato, Jalisco, México, Michoacán, Sonora, Tabasco, Veracruz), West

Elevation: 500–1500 m Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Sinaloa, Sonora). Of conservation concern. Cyperus hypopitys can be recognized

1400–2600 m. Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Durango, Sonora). In Texas, Euphorbia bilobata is known only from Jeff Davis County

Map Legacy Map Ariz., N.Mex., Okla., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora, Tamaulipas, Zacatecas). Cylindropuntia leptocaulis

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"species"

Mex., Okla., S.C., Tex., s Europe, introduced also in Mexico (Chihuahua, Durango, Sinaloa), South America (Argentina). Tamarix gallica is morphologically

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Sonora, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"species"

Generated Map Legacy Map Ariz., Calif., Nev., N.Mex., Utah, Mexico (Chihuahua, Durango, Jalisco, San Luis Potosí, Sonora, Zacatecas). None. None. window.prope

Elevation: 800–2000+ m Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus",

1000–1500+ m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Thymophylla

Generated Map Legacy Map B.C., Calif., Oreg., Wash., Mexico (Baja California, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Scleropodium

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Zacatecas). Variety wivaggii is primarily

streamsides. Elevation: 1000–3000 m. Generated Map Legacy Map Calif., Mexico (Durango). Variety cirrata occurs in the flora area only in the San Bernardino and

Generated Map Legacy Map Ariz., Tex., Mexico (Chihuahua, Distrito Federal, Durango, Guanajuato, México, Puebla, Veracruz). Variety glandulosum occurs on mountain

1500–2100 m (Mexico) Generated Map Legacy Map N.Mex., Mexico (Chihuahua, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Flourensia"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Mexico (Coahuila, Durango, Nuevo León). Both the holotype of E. xyridiformis from Mexico and the vouchers

(Chihuahua, Durango, Sonora, Zacatecas). Oenothera havardii ranges from Brewster and Presidio counties, Texas, and Cochise County, Arizona, south to Durango and

2000–3000 m. Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sinaloa, Sonora). Castilleja patriotica is broadly distributed in the northern

700–2800 m. Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora). Oenothera podocarpa occurs in Arizona from eastern Mohave County

, N.Mex., N.Dak., Oreg., S.Dak., Utah, Wash., Wyo., Mexico (Chihuahua, Durango, Guanajuato, Hidalgo, Jalisco, Sonora). Petals in Oenothera flava typically

Map Legacy Map N.Mex., Mexico (Chihuahua, Durango). Castilleja ornata is known from Chihuahua and northern Durango, Mexico, but much of its seasonally moist

Tex., Utah, Wash., Wyo., Mexico (Baja California, Chihuahua, Coahuila, Durango, Sonora, and southward). Polyploidy and agamospermy apparently are common

Oreg., Pa., S.C., Tenn., Tex., Va., W.Va., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Tamaulipas). J. Kuijt (2003) used

800-1800 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León). In western Texas and northern Mexico, Cylindropuntia kleiniae

Elevation: 2000–2400 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Zacatecas), Central America

Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Distrito Federal, Durango, state of México, Michoacán, Querétaro, San Luis Potosí, Sonora). None.

600-900[-1600] m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango). I. M. Johnston (1944) and B. L. Turner (1993b) noted the similarity of

Elevation: 2100-2600 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Durango, and Zacatecas). Quercus depressipes enters the United States in only one

Elevation: 1500-1900 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Durango, Federal District, Hidalgo, Sinaloa, Zacatecas). None. None. window.pro

globose capsules; the latter, centered in southern Chihuahua and northern Durango, has orange to reddish petals, broad leaves, stout stems, and large, ovoid

1200–2000 m. Generated Map Legacy Map N.Mex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas). In the flora area, Hebecarpa rectipilis is known only from

Utah, Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, San Luis Potosí, Sinaloa, Zacatecas). None. None. window.propertiesFro

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Tamaulipas). Tragia amblyodonta is easily distinguished from

400–2400(–2800) m. Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Coahuila, Durango, Guanajuato, Jalisco, Nuevo León, Querétaro, San Luis Potosí, Veracruz,

Utah, Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Hidalgo, Jalisco, Michoacán, Nayarit, Sinaloa, Sonora, Zacatecas). The

Utah, Wash., Wyo., Mexico (Chiapas, Chihuahua, Coahuila, Distrito Federal, Durango, Michoacán, San Luis Potosí, Veracruz, Zacatecas). Plants of subsp. bracteata

900–2400 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí). None. None. window.propertiesFromHigherTaxa=[{"rank":"section"

Utah, Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"section"

1400–2600 m. Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Durango, eastern Sonora, Tamaulipas). Polygala hemipterocarpa is known only from

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora, Tamaulipas). T. H. Kearney (1935) recognized subspecies

Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis., Mexico (Durango). For differences between this highly polymorphic species and the similar

Utah, Wash., Wyo., Mexico (Baja California, Chihuahua, Distrito Federal, Durango, Guanajuato, Nuevo León, Querétaro, San Luis Potosí, Sonora, Zacatecas)

Calif., Colo., Kans., N.Mex., Okla., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Tamaulipas). None. None. window.p

Tex., Wyo., Mexico (Baja California Sur, Chiapas, Chihuahua, Coahuila, Durango, Guanajuato, Jalisco, México, Nuevo León, Oaxaca, Querétaro, San Luis Potosí

Nev., N.Mex., Tex., Utah, Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Sonora). Baileya multiradiata is an attractive and bountiful wild flower

1500-2500 m Generated Map Legacy Map Tex., Mexico (Coahuila, Nuevo León, Durango, and Zacatecas). Quercus intricata, a fairly common element of the mountains

Ariz., Nev., N.Mex., Tex., Mexico (Baja California, Chihuahua, Coahuila, Durango, Guanajuato, Hidalgo, Nuevo León, Querétaro, San Luis Potosí, Sonora, Tamaulipas)

Elevation: 0-1400 m Generated Map Legacy Map N.Mex., Tex., Mexico (Coahuila, Durango, Nuevo León, Tamaulipas). The western, desert populations of Echinocactus

Tex., Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, San Luis Potosí, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"section"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Hidalgo, Nuevo León, Querétaro, San Luis Potosí, Sonora, Tamaulipas, Zacatecas)

Elevation: 1500-2500 m Generated Map Legacy Map Tex., Mexico (Coahuila, Durango, San Luis Potosí, Zacatecas). Coryphantha chaffeyi is nearly identical to

1500-2400 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Jalisco, Sinaloa, Sonora, Zacatecas). Two outstanding features of Arbutus

Map Ariz., Calif., N.Mex., Tex., Utah, Wyo., Mexico (Chihuahua, Coahuila, Durango, Guanajuato, San Luis Potosí, Sonora, Zacatecas). Euphorbia exstipulata

Mex., Okla., Tex., Utah, Mexico (Baja California, Chihuahua, Coahuila, Durango, Zacatecas). Fallugia paradoxa grows in diverse habitats, ranging from the

, S.Dak., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., Mexico (Chihuahua, Durango, Nuevo León), introduced w Europe. As the synonymy implies, Cornus sericea

1700-2100 m Generated Map Legacy Map Introduced; Ariz., Mexico (Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas). Opuntia microdasys is widely cultivated

2000–3000 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango). Plants of Senecio actinella with relatively small proximal leaves similar

is native primarily to western Mexico (Sinaloa, Chihuahua, and Sonora to Durango and Jalisco; R. McVaugh 1984; B. L. Turner 1997). Similar plants (known

Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Coahuila, Sonora, Durango). Variety martinii occurs from east-central and southeastern Arizona to

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

1500–2300 m Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus",

200–1600 m. Generated Map Legacy Map Tex., Mexico (Coahuila, Coahuila, Durango, Nuevo León). Colubrina stricta is known in the flora area only from historic

Map Legacy Map N.Mex., Tex., Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Veracruz, Zacatecas). Variety

Map Ariz., N.Mex., Tex., Mexico (Baja California, Chihuahua, Coahuila, Durango, Guanajuato, Guerrero, Jalisco, San Luis Potosí, Sonora). Black cherries

Generated Map Legacy Map Tex., Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas). Subspecies hartwegii is the most

1100–2800(–3100) m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora). Erigeron oreophilus is similar to E. neomexicanus in its perennial

Generated Map Legacy Map Tex., Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Chaetopappa bellioides

Calif., N.Mex., Mexico (Baja California, Baja California Sur, Chihuahua, Durango, Sinaloa, Sonora). Pseudognaphalium leucocephalum is similar to P. viscosum

800–1900 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Viguiera stenoloba

Elevation: 1200–1800 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Coahuila, Durango, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Elevation: 1500–2200 m Generated Map Legacy Map N.Mex., Mexico (Chihuahua, Durango, Zacatecas, s to Oaxaca). Echinopepon coulteri is known in the flora area

1100-1700 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas). None. None. window.properties

700–1500 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

1700–3000 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus",

Pa., S.Dak., Tenn., Tex., Utah, Wis., Wyo., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí). Mirabilis linearis var. linearis is primarily of the

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango). Sida neomexicana resembles S. ciliaris in several respects, especially

2100–2800 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"species"

Elevation: 300–1400+ m Generated Map Legacy Map Tex., Mexico (Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). None. None. window

Map Legacy Map Ariz., Colo., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí, Sonora, Tamaulipas). Malvella sagittifolia is known from

Elevation: 1100–2700 m Generated Map Legacy Map Ariz., Tex., Mexico (Chihuahua, Durango, Jalisco, Sonora, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

90–1600 m. Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Tamaulipas). Variety lindheimeri occurs in central, southern

1800-2400 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas). Like Echeveria strictiflora, Villadia squamulosa enters the

0-1200[-2000] m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Thelocactus bicolor

, Wis., Mexico (Chiapas, Chihuahua, Coahuila, Colima [Socorro Island], Durango, Hidalgo, Jalisco, Michoacán, Nayarit, Nuevo León, Oaxaca, Puebla, San Luis

arroyo bottoms, lake shores Generated Map Legacy Map Tex., Mexico (Coahuila, Durango). Rorippa ramosa is known from the Big Bend area in Brewster County and

Map Legacy Map Ariz., Nev., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí, Sonora, Zacatecas). Malvella lepidota is somewhat intermediate

Elevation: 1200–1900 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Lygodesmia"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). None. None. window

(1000–)1500–2100 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Sonora). Variety chihuahuanum is a Chihuahuan Desert taxon that extends

(1800–)2000–2600 m. Generated Map Legacy Map Ariz., Colo., N.Mex., Mexico (Chihuahua, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Oxalis"

Ariz., N.Mex., Tex., Mexico (Baja California Sur, Chihuahua, Coahuila, Durango, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Sageretia"

1500–2400 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Verbesina"

700–1600 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Zacatecas). None. None. window.pr

1700–2600 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora). Psacalium decompositum barely enters the flora area in Arizona

sites. Elevation: 0–50 m. Generated Map Legacy Map Tex., Mexico (Coahuila, Durango, Nuevo León, Tamaulipas, Veracruz). Stemodia schottii is closely related

500-2300 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí, Zacatecas). In Mexico, plants of Ferocactus hamatacanthus

populations of B. gracillima also have glabrous fruits, and a local endemic in Durango, B. chrysantha Barneby, differs primarily in its yellow perianths similar

Map Ariz., N.Mex., Tex., Mexico (Baja California, Chihuahua, Coahuila, Durango, Nuevo León, Sonora, Zacatecas). Hibiscus coulteri has been recorded in

Mex., Okla., Tex., Utah, Mexico (Baja California, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Tamaulipas, Zacatecas), West

Dak., Tex., Wis., Wyo., Mexico (Chihuahua, Coahuila, Distrito Federal, Durango, Hidalgo, Nuevo León, México, Querétaro, San Luis Potosí, Sonora, Veracruz

Elevation: 1800–2500 m. Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Sinaloa, Sonora). Erythranthe calciphila is recognized by its annual duration

Calif., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Mexico (Chihuahua, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"section","name":"Carex

Map Legacy Map Ala., Fla., Miss., N.C., S.C., Tex., Mexico (Chihuahua, Durango, Puebla, Quintana Roo, Tabasco, Tamaulipas, Veracruz), South America (Argentina

1000-1300[-2300] m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Zacatecas). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Tex., Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Sonora). Boerhavia intermedia is a wide-ranging and variable species of

Ariz., Colo., N.Mex., Wyo., Mexico (Baja California, Chihuahua, Coahuila, Durango, Sonora). Salix irrorata is very closely related to S. lasiolepis. The two

Map Ariz., Mexico (Baja California, Chiapas, Chihuahua, Distrito Federal, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, Michoacán, Morelos, Nuevo León

Utah, Wash., Wyo., s Europe, Asia, n Africa, introduced also in Mexico (Durango, San Luis Potosí), Australia. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, and Sonora). Some of the specimens previously referred to Quercus endemica

900–2000 m. Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León). Mentzelia pachyrhiza, native to the Chihuahuan Desert, reaches

Ariz., N.Mex., Tex., Mexico (Baja California Sur, Chihuahua, Coahuila, Durango, Nuevo León, Sinaloa, Sonora). Pectis cylindrica (2n = 48) is similar to

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Variety undulatum

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Tamaulipas, Zacatecas). None

Elevation: 50-2400 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Hidalgo, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Synthlipsis

1200-2400 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas). Collections of Coelophragmus auriculatus

Wyo., Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Zacatecas). Gutierrezia sarothrae

Legacy Map Ariz., Colo., Kans., N.Mex., Okla., Tex., Mexico (Coahuila, Durango). Subspecies pubescens occurs from Baca and Las Animas counties, Colorado

Ind., Iowa, Mo., Nev., Ohio, Okla., Oreg., Tenn., Tex., Wash., Mexico (Durango, San Luis Potosí). Of conservation concern. Although its overall distribution

200-1300 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Tamaulipas, Zacatecas). None. None. window.propertiesFromH

2200–2600 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sinaloa, Sonora, Zacatecas). None. None. window

Elevation: 700-1500 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Durango). None. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Grusonia"

[500-]800-1400[-2300] m Generated Map Legacy Map Tex., Mexico (Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Neolloydia conoidea

Elevation: 900–1700 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora). Pectis longipes has been listed from Texas in floras; I have seen

Nev., N.Mex., Oreg., Utah, Mexico (Baja California, Chihuahua, Coahuila, Durango, Nuevo León, Sonora). Oxalis pilosa has been treated as an infraspecific

, Nebr., Nev., N.Mex., Okla., Tex., Utah, Mexico (Chihuahua, Coahuila, Durango, San Luis Potosí, Sonora, Tamaulipas). Helianthus ciliaris is considered

300-3000 m Generated Map Legacy Map Ariz., Colo., N.Mex., Mexico (Chihuahua, Durango). Sedum stelliforme has glistening patches on the flowering branches and

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León). Drymaria pachyphylla is highly toxic to livestock. None. None

Generated Map Legacy Map Ariz., Utah, Mexico (Baja California, Chihuahua, Durango, Sinaloa, Sonora). R. K. Vickery (1992) noted that yellow-flowered morphs

1300–2900 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sinaloa, Sonora). Plectocephalus rothrockii closely resembles P. americanus

Otero counties, south-central New Mexico. The species was collected once at Durango, La Plata County, Colorado (P. H. Raven and D. P. Gregory 1972[1973]), but

(100-)500-2000 m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora, Zacatecas). The distinctiveness of Glandulicactus uncinatus

600-1300 m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango). Opuntia rufida hybridizes in Mexico with O. microdasys. The vernacular

Elevation: 1800-2000 m Generated Map Legacy Map N.Mex., Mexico (Chihuahua, Durango, Sonora, Zacatecas). Variety atrorubens enters the flora area in the San

Nev., N.Mex., Tex., Utah, Mexico (Baja California, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Tamaulipas, Veracruz, Zacatecas).

, Colo., Nev., N.Mex., Okla., Tex., Utah, Mexico (Chihuahua, Coahuila, Durango, Sonora). Some plants, especially from Arizona, included here in Gaillardia

Generated Map Legacy Map Ariz., Colo., N.Mex., Tex., Mexico (Chihuahua, Durango, Sonora, Zacatecas). Oxalis metcalfei has mostly been identified as O. alpina

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Zacatecas). Attribution of Zinnia

(1000-3500 m) Generated Map Legacy Map Ariz., Colo., N.Mex., Utah, Mexico (Durango). Pseudoleskeella arizonae is somewhat anomalous in the genus, and has been

Oreg., Tex., Utah, Wash., Mexico (Baja California, Chihuahua, Coahuila, Durango, San Luis Potosí, Sinaloa, Sonora), South America (Argentina, Chile, Peru

Elevation: 1600–2400 m Generated Map Legacy Map Ariz., Mexico (Chihuahua, Durango, Sonora). The mature rhizomes of var. glaberrima occur to 15 cm beneath

Elevation: 400–1800(–2100) m. Generated Map Legacy Map Tex., Mexico (Coahuila, Durango, Nuevo León, Tamaulipas). Oenothera calcicola occurs at mostly higher elevations

500-1800(-2200) m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango). The names Coryphantha strobiliformis and Escobaria strobiliformis have

30-1700(-2000) m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Zacatecas). Southern Texas populations of Coryphantha macromeris contain

Generated Map Legacy Map Ala., Fla., Ga., N.C., Tex., Mexico (Chiapas, Durango, Oaxaca, Puebla, Tabasco, Veracruz), West Indies, Central America, South

Tex., Utah, Wash., Mexico (Baja California, Chiapas, Chihuahua, Coahuila, Durango, San Luis Potosí, Sonora). Salix lasiolepis is polymorphic. Variety bigelovii

C., S.Dak., Tenn., Vt., Va., W.Va., Wis., Mexico (Chihuahua, Coahuila, Durango, Jalisco, Nuevo León, Tamaulipas), West Indies, Central America (Costa Rica

1400–2600 m Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Sonora). Cirsium grahamii occurs in the mountains of southeastern Arizona

Generated Map Legacy Map Ariz., Colo., N.Mex., Okla., Tex., Mexico (Chihuahua, Durango, Sonora, Coahuila). In Texas, Solidago wrightii grows primarily in the trans-Pecos

Map Legacy Map Ariz., Colo., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Zacatecas). None. None. window.pr

300–1500 m. Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Zacatecas). Castilleja rigida is endemic to desert scrub on

Mex., Okla., Tex., Utah, Mexico (Baja California, Chihuahua, Coahuila, Durango, Sonora, Zacatecas). In March through June, plants of Erigeron tracyi produce

Oreg., Tex., Utah, Wash., Mexico (n Baja California, Chihuahua, Coahuila, Durango, Sinaloa, Sonora). Subspecies hirsutissima occurs throughout much of the

Legacy Map Ariz., N.Mex., Tex., Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Nayarit, Nuevo León, San Luis Potosí, Tamaulipas, Veracruz, Zacatecas)

700-1300[-2100] m Generated Map Legacy Map Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Zacatecas). Mammillaria pottsii superficially resembles Coryphantha

Generated Map Legacy Map Tex., Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). Castilleja mexicana

Map Legacy Map Ariz., Colo., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora). Castilleja integra is widespread and common in the

, Tex., Utah, Mexico (Baja California, Baja California Sur, Chihuahua, Durango, Sinaloa, Sonora). None. None. window.propertiesFromHigherTaxa=[{"rank":"section"

Dak., Okla., S.Dak., Tex., Utah, Wis., Wyo., Mexico (Chihuahua, Coahuila, Durango, Jalisco, Nuevo León, Sonora). Variety commutatum is introduced in Ontario

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Sonora, Chihuahua, and Durango). Some of the specimens referred to Quercus endemica by C. H. Muller should

500-1800(-2100) m Generated Map Legacy Map N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Zacatecas). Adults of Mammillaria

Kans., La., Mo., Nebr., N.Mex., Okla., Tex., Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas). Oenothera speciosa is widely

Generated Map Legacy Map Ariz., Mexico (Aguascalientes, Chihuahua, Colima, Durango, Guerrero, Jalisco, México, Michoacán, Morelos, Nayarit, Oaxaca, Puebla

Utah, Va., Wash., Wyo., Mexico (Baja California, Chihuahua, Coahuila, Durango, Nuevo León, Sinaloa, Zacatecas), introduced in South America (Argentina)

Wyo., Mexico (Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Sonora, Zacatecas). Some authors have included Hypericum scouleri in central

Generated Map Legacy Map Ark., La., Mo., N.Mex., Okla., Tex., Mexico (Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas). Cirsium texanum ranges from the

Pa., S.Dak., Tex., Utah, Wash., Wis., Wyo., Mexico (Chihuahua, Coahuila, Durango, Sonora). Cirsium undulatum is widely distributed in the wstern half of

, Nebr., N.Mex., N.Dak., Okla., S.Dak., Tex., Wyo., Mexico (Chihuahua, Durango, San Luis Potosí). Euphorbia stictospora has been recorded from New York

, Tex., Utah, Wis., Wyo., Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Guanajuato, Hidalgo, Jalisco, México, Nuevo León, Oaxaca, Puebla, San Luis

Map Ariz., N.Mex., Tex., Mexico (Baja California, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Sonora, Tamaulipas, Zacatecas). Most records

1900–3100 m. Generated Map Legacy Map Ariz., N.Mex., Mexico (Chihuahua, Durango, Nayarit, Sonora). Castilleja nelsonii is fairly common in the upper elevations

Generated Map Legacy Map Ariz., N.Mex., Tex., Mexico (Chihuahua, Coahuila, Durango, Sonora). Oenotherabrachycarpa occurs from southeastern Arizona in southern

Idaho, Nev., N.Mex., Oreg., Tex., Utah, Wyo., Mexico (Chihuahua, Coahuila, Durango). Sidalcea neomexicana is variable among and within populations. It is similar

Generated Map Legacy Map Ariz., Mexico (Baja California Sur, Chihuahua, Durango, Sinaloa, Sonora). Subspecies bicuspidatum is the northernmost representative

western Texas, southern New Mexico, and portions of Chihuahua, Coahuila, Durango, Zacatecas, and San Luis Potosí, south to 22° N latitude (J.A. MacMahon