Ipomopsis arizonica is a flowering plant in the family Polemoniaceae, native to the mountains of the Mojave Desert sky islands from southeastern California east through southern Nevada to northern Arizona, growing at 1500–3100 meters in elevation. It is found in rocky places in the desert, as well as washes.
Homogyne alpina, the Alpine coltsfoot or purple colt's-foot, is a rhizomatous herb in the family Asteraceae, which is often used as an ornamental plant. The plant has purple-red flowers, and it is usually associated with the gall flies Ensina sonchi and Acidia cognata.
Draba densifolia is a species of flowering plant in the family Brassicaceae known by the common names Alpine Whitlow-Grass and denseleaf draba. This small perennial is native to western North America, where it is found in mountain environments above 2000 meters from California to Alaska to Wyoming. The plant forms cushion-like mats of small fleshy, hairy, pointed leaves in rocky crevices and on slopes. If it bolts a stem it is no taller than 15 centimeters. The flowers open in an obvious inflorescence of a few tiny blooms at times, but often appear as a layer on the surface of the mat of tiny leaves. The flowers are bright yellow with petals just a few millimeters wide. The fruit is a flat podlike silique less than a centimeter long. Grows in alpine rocky slopes, barren outcrops.
Draba asterophora is a species of flowering plant in the family Brassicaceae known by the common names Lake Tahoe draba or Tahoe whitlow-grass. This rare plant is known only from the Mount Rose and Slide Mountain areas of the northern Carson Range in extreme western Nevada, in and just outside of the Lake Tahoe drainage basin. It is a squat perennial herb which forms small mats in rocky habitat in the alpine climate of the high mountains. It forms a basal patch of thick, hairy oval leaves up to 1.5 centimeters long. A small, erect inflorescence arises from the patch bearing several yellow mustard-like flowers. The fruit is a flat, wavy silique which is oval in shape, somewhat membranous, and up to 1.5 centimeters long. It contains several flat, round seeds with wide wings along the edges.
Draba incrassata is an uncommon species of flowering plant in the family Brassicaceae known by the common name Sweetwater Mountains draba.
Ribes montigenum is a species of currant known by the common names mountain gooseberry, alpine prickly currant, western prickly gooseberry, and gooseberry currant. It is native to western North America from Washington south to California and east as far as the Rocky Mountains, where it grows in high mountain habitat types in subalpine and alpine climates, such as forests and talus. It is a spreading shrub growing up to 1.5 meters tall, the branching stems covered in prickles and hairs and bearing 1 to 5 sharp spines at intervals.
Ipomopsis sancti-spiritus is a rare species of flowering plant in the phlox family known by the common name Holy Ghost ipomopsis. It is endemic to New Mexico in the United States, where it is known from only one canyon in the Sangre de Cristo Mountains. It is a federally listed endangered species.
Ipomopsis polyantha is a rare species of flowering plant in the phlox family known by the common names Pagosa ipomopsis, Pagosa skyrocket and Archuleta County standing-cypress. It is endemic to Colorado in the United States, where it occurs only in the vicinity of Pagosa Springs in Archuleta County. It is threatened by the loss of its habitat to residential and commercial development. It was federally listed as an endangered species in 2011.
Draba serpentina is a species of flowering plant in the family Brassicaceae known by the common name serpentine draba. It is endemic to Nevada in the United States, where it occurs in the Snake Range in White Pine County and the Toiyabe Range of Lander County.
Draba ramulosa is a rare species of flowering plant in the family Brassicaceae known by the common names Mt. Belknap draba and Tushar Mountain draba. It is endemic to Utah, where it is known only from Mt. Belknap in the Tushar Mountains in Beaver and Piute Counties.
Packera castoreus is a rare species of flowering plant in the aster family known by the common names Beaver Mountain groundsel and Beaver Mountain ragwort. It is endemic to Utah in the United States, where it occurs only in the Tushar Mountains.
Primula capillaris is a rare species of flowering plant in the primrose family known by the common name Ruby Mountains primrose, or Ruby Mountain primrose. It is endemic to Nevada in the United States, where it is limited to the Ruby Mountains of Elko County.
Ribes oxyacanthoides is a species of flowering plant in the gooseberry family known by the common name Canadian gooseberry. Its various subspecies have common names of their own. It is native to North America, where it occurs in Alaska through much of Canada and the western and north-central United States.
Cymopterus evertii is a species of flowering plant in the carrot family known by the common names Evert's springparsley and Evert's waferparsnip. It is native to Utah and Wyoming in the United States.
Draba exunguiculata is a species of flowering plant in the family Brassicaceae known by the common names clawless draba and Grays Peak draba. It is endemic to Colorado in the United States.
Draba globosa is a species of flowering plant in the family Brassicaceae known by the common names beavertip draba, round-fruited draba, and rockcress draba. It is native to the western United States, where it occurs in Idaho, Montana, Utah, Wyoming, and possibly Colorado.
Draba graminea is a species of flowering plant in the mustard family known by the common names Rocky Mountain draba and San Juan Whitlow-grass. It is endemic to the state of Colorado in the United States, where it is limited to the San Juan Mountains.
Ipomopsis globularis is a species of flowering plant in the phlox family known by the common name Hoosier Pass ipomopsis. It is endemic to Colorado in the United States, where it grows in the Rocky Mountains.
The flora of the U.S. Sierra Nevada alpine zone is characterized by small, low growing, cushion and mat forming plants that can survive the harsh conditions in the high-altitude alpine zone above the timber line. These flora often occur in alpine fell-fields. The Sierra Nevada alpine zone lacks a dominant plant species that characterizes it, so may or may not be called a vegetation type. But it is found above the subalpine forest, which is the highest in a succession of recognized vegetation types at increasing elevations.
