Yucca brevifolia is a plant species belonging to the genus Yucca. It is tree-like in habit, which is reflected in its common names.
Calochortus nuttallii, also known as the sego lily, is a bulbous perennial plant that is endemic to the Western United States. The common name of sego comes from a similar Shoshone word. It is the state flower of Utah.
The white-throated woodrat is a species of rodent in the family Cricetidae. It is found from central Mexico north to Utah and Colorado in the United States. It is primarily a western species in the United States, extending from central Texas west to southeastern California. Populations east of the Rio Grande in New Mexico and Trans-Pecos Texas, previously considered to be variants of the white-throated woodrat, have since 1988 been assigned to the white-toothed woodrat.
Ephedra trifurca is a species of Ephedra known by the common names longleaf jointfir and Mexican tea.
Lycium andersonii is a species of flowering plant in the nightshade family, Solanaceae. Its common names include water-jacket, redberry desert-thorn, Anderson thornbush, Anderson's desert thorn, Anderson boxthorn, Anderson lycium, Anderson wolfberry, and squawberry.
Ephedra cutleri, the Navajo ephedra or Cutler's jointfir, is a species of Ephedra that is native to the Southwestern United States.
Androstephium breviflorum is a species of flowering plant known by the common names pink funnel lily and small flowered androstephium.
Calochortus panamintensis is a rare North American species of flowering plants in the lily family known by the common name Panamint mariposa lily. It is native to Inyo and Kern Counties in California, plus adjacent Nye County, Nevada. It is named after the Panamint Range near Death Valley.
Cirsium mohavense is a species of thistle known by the common names virgin thistle and Mojave thistle. It is native to the southwestern United States, where it grows in moist areas in otherwise dry habitat, such as desert springs. It is most common in the Mojave Desert, found also in the southern Great Basin and other nearby regions of California, Nevada, western Arizona, and southwestern Utah.
Sphaeralcea gierischii, Gierisch's globemallow or Gierisch mallow, is an endangered species of flowering plant in the mallow family, Malvaceae. It is native to the western United States, where it is known only from Utah and Arizona. It was described in 2002.
Sedum albomarginatum is a rare species of flowering plant in the family Crassulaceae known by the common name Feather River stonecrop. It is endemic to California where it is known from fewer than 20 occurrences along the Feather River in Plumas and Butte Counties. It grows on steep cliffs and mountain slopes in rocky serpentine substrates.
Astragalus holmgreniorum is a rare species of milkvetch known by the common names Holmgren milk-vetch and paradox milk-vetch. It is native to a tiny section of desert shrub woodland on the border between Utah and Arizona, in the far northern Mojave Desert. There are six populations remaining. It is a federally listed endangered species.
Schoenocrambe argillacea is a rare species of flowering plant in the mustard family known by the common names clay reed-mustard, Uinta Basin plainsmustard, and clay thelypody.
Schoenocrambe barnebyi is a rare species of flowering plant in the mustard family known by the common names Barneby reed-mustard, Syes Butte plainsmustard, and Barneby thelypody. It is endemic to Utah in the United States, where it is known only from Emery and Wayne Counties. It is threatened by habitat degradation and destruction. It is federally listed as an endangered species of the United States.
Sclerocactus glaucus is a rare species of cactus known by the common name Colorado hookless cactus. It is endemic to Colorado in the United States, where it is known only from the area between Grand Junction and Montrose. It is a federally listed threatened species.
Acamptopappus sphaerocephalus is a species of flowering plant in the family Asteraceae known by the common name rayless goldenhead. It is native to the southwestern United States, where it occurs in southern California, southern Nevada, southern Utah, and Arizona.
Artemisia pygmaea is a North American species of sagebrush in the aster family known by the common name pygmy sagebrush.
Lycium pallidum is a species of flowering plant in the nightshade family known by the common names pale wolfberry and pale desert-thorn. It is native to northern Mexico and the southwestern United States. In Mexico it can be found in Sonora, Chihuahua, Zacatecas, and San Luis Potosi. In the United States it occurs from California to Texas and as far north as Utah and Colorado.
Hilaria rigida is a species of clumping perennial grass that is widespread in California deserts. It is commonly known as big galleta. It is a monocot in the Hilaria genus of the grass family (Poaceae).
