desert, painted desert, mesas, buttes, arid, sangre de cristo mountains, canyon, paloverde, sierra madre oriental, scrublands, highlands, pampas, bunchgrass, cactus, massifs, subalpine, borderlands, mountains, ocotillo, horned lizard, arroyos, spinifex, palo verde, cragged, teton range, tableland, canyonlands, hogback, plains, moorlands, semitropical, leopard frog, gnatcatchers, nullarbor plain, ceanothus, mohave desert, umbel, scrub oak, sagebrush, bristlecone pine, savannas, wasatch range, altiplano, thar desert, brittlebush, grasslands, cirques, greasewood, chiricahua, rimrock, tundras, iztaccihuatl, creosote bush, prickly pear cactus, jungly, yucca, landforms, foothills, brushland, escarpments, sonoran, bushveld, valley, frontera, sierra morena, semiarid, mountainsides, adobes, cataract canyon, himalayas, saguaros, mesquite, slickrock, steppe, hillsides, flora, cordillera, tufa, prairies, pinon, mojave rattlesnake, tadpole shrimp, hummocks, appalachian mountains, namib desert, pinon pine, mesoamerica, tarns, savannah, quaking aspen, manzanita, quetzal, montane, tarahumara, xeric, ponderosa, toltecs, bristlecone, cactus wren, agaves, cliffs, creeping thyme