Draba albertina is a species of flowering plant in the mustard family known as the Arc dome draba,slender draba or slender whitlow-grass. This plant is native to western North America, where it grows at high elevations from Arizona to Alaska and northern Canada. Like many species of Draba, it can grow in alpine and Arctic climates. This is a biennial or short-lived perennial with a single stem or several branching stems which may be very short or up to 40 centimeters in height. The appearance of the plant varies depending on the climate it endures. The leaves are up to 4 centimeters long, roughly hairy, and mostly basal. The stem bears an inflorescence of up to about 30 small yellow flowers. The fruit is a silique up to two centimeters long.
Draba aureola is a species of flowering plant in the family Brassicaceae known as the Mt. Lassen draba or Mt. Lassen whitlow-grass. This plant is native to the Cascade Range of western North America, where it grows at elevations above 2000 meters. This is usually a perennial plant found growing in rocky areas such as volcanic cliffs and scree. It has one or more short, stout stems which are covered in stiff hairs. The leaves grow in a dense basal clump at the ground. They are fat and fleshy and covered in a carpetlike coat of stiff, light-colored, branching hairs. The stem may be erect above the clump of leaves or its inflorescence may rest directly upon them. The spherical or club-shaped inflorescence may have up to 80 small, yellow flowers packed densely in it, each petal about 5 millimeters wide. The fruit is a wavy-edged, hairy silique about a centimeter long and half a centimeter wide.
Draba californica is a species of flowering plant in the family Brassicaceae, known as the California draba.
Draba cuneifolia is a species of flowering plant in the family Brassicaceae known as the wedgeleaf draba or wedgeleaf whitlow-grass. This annual plant is native to the southern half of North America where it grows in open, rocky fields and other disturbed areas. The plant forms a basal cluster of leaves, which are thick, widely toothed, and coated in stiff hairs. It bolts one or more erect stems which may approach 40 centimeters in maximum height. Each hairy stem bears an inflorescence of up to 75 small white flowers that continue at intervals down the stem as the stem grows in height. This family and its plants are easy to identify with its 4 petals and 4 sepals arranged like a "cross", either in an "X" or "H" shape, thus the name "Cruciferae". Mustards have 6 stamens usually 4 are taller and 2 are shorter. Fruits are either a long thin silique or short often rounded silicle.
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 breweri is a species of flowering plant in the family Brassicaceae known by the common names cushion draba, Lanceleaf Draba, Brewer's draba, and Brewer's Whitlow grass. With Draba cana now considered a variety of this species, it is distributed throughout parts of northern and western North America, including much of Canada and the western United States. The less widespread var. breweri is limited to mountainous California and western Nevada.
Draba carnosula is a rare species of flowering plant in the family Brassicaceae known by the common name Mt. Eddy draba. It is endemic to the Klamath Mountains of far northern California, where it is known from fewer than twenty occurrences at Mount Eddy and other peaks in the range. This is a perennial herb forming small clumps in serpentine outcrops. The leaves are located at the base of the plant, each an oval shape under a centimeter long. They are mostly hairless, except for long hairs along the edges. The erect inflorescence bears fewer than 10 yellow mustardlike flowers. The fruit is a lance-shaped silique one or two centimeters long, containing several winged seeds.
Draba howellii is a species of flowering plant in the family Brassicaceae known by the common names rosette draba and Howell's draba. It is endemic to the Klamath Mountains of northern California and southern Oregon, where it grows in rock crevices. This is a tuft-forming perennial herb, sometimes coated in hairs. Most of the leaves are located at the base of the plant, each oval in shape, up to 2.5 centimeters long, and sometimes edged in fine teeth. There may be one or more leaves on the stem as well. The erect inflorescence bears up to 30 yellow mustardlike flowers. The fruit is an oval silique up to a centimeter long containing several seeds.
Draba incrassata is an uncommon species of flowering plant in the family Brassicaceae known by the common name Sweetwater Mountains draba.
Draba pterosperma is an uncommon species of flowering plant in the family Brassicaceae known by the common name wingedseed draba. It is endemic to Siskiyou County, California, where it is known only from the Marble and Salmon Mountains of the Klamath Range. It is a small perennial herb forming dense mats or cushions of hairy, oval-shaped leaves each no more than a centimeter long. The erect inflorescence bears several white flowers that yield flat oval-shaped siliques containing winged seeds.
Draba sharsmithii is an uncommon species of flowering plant in the family Brassicaceae known by the common names Mt. Whitney draba and Sharsmith's draba.
Draba sierrae is an uncommon species of flowering plant in the family Brassicaceae known by the common name Sierra draba. It is endemic to the central Sierra Nevada of California, where it is known from just a few occurrences in rocky alpine habitat. It is a perennial herb forming small, dense cushions of very hairy, oblong or lance-shaped grayish leaves each under centimeter long. The erect inflorescence bears several yellow flowers. The fruit is a flat, twisted, oval-shaped silique under a centimeter long containing a few unwinged seeds.
Cymopterus goodrichii is a rare species of flowering plant in the carrot family known by the common name Toiyabe springparsley. It is endemic to Nevada in the United States, where it occurs in the Toiyabe and West Humboldt Ranges.
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.
Draba burkei is a species of flowering plant in the family Brassicaceae known by the common names snowbasin draba and Burke's draba. It is endemic to Utah in the United States, where it is known from Box Elder, Cache, Morgan, and Weber Counties. This plant was considered a variety of Draba maguirei until 2004, when it was elevated to species status.
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.
