Pinus ponderosa, commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine, is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.
Arbutus is a genus of 12 accepted species of flowering plants in the family Ericaceae, native to temperate regions of the Mediterranean, western Europe, the Canary Islands and North America, and commonly called madrones or strawberry trees. The name Arbutus was taken by taxonomists from Latin, where it referred to the species now designated Arbutus unedo.
Arbutus menziesii, or Pacific madrone, is a species of broadleaf evergreen tree in the family Ericaceae. It has waxy foliage, a contorted growth habit, and flaky bark.
Quercus emoryi, the Emory oak, is a species of oak common in Arizona, New Mexico and western Texas, United States, and northern Mexico. It typically grows in dry hills at moderate altitudes.
Hesperocyparis arizonica, the Arizona cypress, is a North American species of tree in the cypress family Cupressaceae, native to the southwestern United States and Mexico. Populations may be scattered rather than in large, dense stands.
Quercus gambelii, with the common name Gambel oak, is a deciduous small tree or large shrub that is widespread in the foothills and lower mountains of western North America. It is also regionally called scrub oak, oak brush, and white oak.
Abies lasiocarpa, the subalpine fir or Rocky Mountain fir, is a western North American fir tree.
The Sierra Madre sparrow, also known as Bailey's sparrow, is an endangered, range-restricted, enigmatic American sparrow. It is endemic to Mexico and is threatened with extinction through habitat loss.
Arbutus xalapensis, commonly known as the Texas madrone, Amazaquitl, or Texas madroño, is a species of flowering plant in the heather family. It is native to Central America, the southwestern United States, and throughout Mexico. It is found in canyons and mountains, on rocky plains, and in oak woodlands, at altitudes of up to 3,000 m in the south of the range, but lower, down to 600 m in the north of the range.
Quercus toumeyi, the Toumey oak, is a North American species of tree in the beech family. It is found in northwestern Mexico and the southwestern United States. It grows in Sonora, Chihuahua, Arizona, New Mexico, and the extreme westernmost tip of Texas.
Quercus rugosa, commonly known as the netleaf oak, is a broad-leaved tree in the beech and oak family Fagaceae. It is native to southern North America.
Bursera fagaroides is a species of flowering plant in the genus Bursera known by the common names torchwood copal and fragrant bursera. It is widespread across much of Mexico from Sonora to Oaxaca, and its range extends just into Arizona in the United States, although some sources suggest that it may now be extirpated in Arizona.
Quercus turbinella is a North American species of oak known by the common names shruboak, turbinella oak, shrub live oak, and gray oak. It is native to Arizona, California, New Mexico, Utah, Colorado, and Nevada in the western United States. It also occurs in northern Mexico.
Quercus arizonica, the Arizona white oak, is a North American tree species in the beech family. It is found in Arizona, New Mexico, western Texas, Sonora, Chihuahua, Coahuila, Sinaloa, and Durango.
Quercus oblongifolia, commonly known as the Mexican blue oak, Arizona blue oak, Blue live oak or Sonoran blue oak, is an evergreen small tree or large shrub in the white oak group.
Quercus grisea, commonly known as the gray oak, shin oak or scrub oak, is a North American species deciduous or evergreen shrub or medium-sized tree in the white oak group. It is native to the mountains of the southwestern United States and northern Mexico. It hybridises with four other oak species where the ranges overlap, the Arizona white oak (Q. arizonica), the Gambel oak (Q. gambelii), the Mohr oak (Q. mohriana) and the sandpaper oak (Q. pungens).
Quercus hypoleucoides, the silverleaf oak or the whiteleaf oak, is a North American species of oak tree or shrub. It grows in the southwestern United States and northern Mexico.
Quercus chihuahuensis, the Chihuahua oak, is a species of oak in the beech family. It is native to the region from extreme western Texas west to Sonora, Mexico, and south to Zacatecas and San Luis Potosí. It grows mostly at mid elevations, from 400–2,000 metres above sea level, in forests mixed with various pines and other oaks. It is one of the dominant species of the Sierra Madre Occidental in Chihuahua and Sonora.
Opuntia macrorhiza is a common and widespread species of cactus with the common names plains pricklypear or prairie pricklypear or western pricklypear. It is found throughout the Great Plains of the United States, from Texas to Minnesota, and west into the Rocky Mountain states to New Mexico, Utah, and perhaps Idaho, with sporadic populations in the Mississippi and Ohio Valleys. It is also reported from northern Mexico in the states of Chihuahua, Sonora, Coahuila, Nuevo León, Durango, Tamaulipas, and San Luís Potosí., though all Arizona and Mexican records should be considered with caution due to confusion with other similar species. The species is cultivated as an ornamental in other locations.
Heterotheca fulcrata, known by the common name rockyscree false goldenaster, is a North American species of flowering plant in the family Asteraceae. It has been found in northern Mexico and in the western United States.
