Draba lactea, the Lapland whitlow-grass or milky whitlow-grass, is a flower common throughout the high Arctic. It stretches further south in mountainous areas of Norway, Montana, Canada, and Greenland.
Draba verna, common whitlowgrass, is a species of plant in the cabbage family. It is a small spring-flowering annual which is widely dispersed around the world, and which is found on walls, pavements and patches of bare ground. It has a complex taxonomy which is not yet fully elucidated.
Adenocaulon bicolor, the American trailplant, trailplant, pathfinder, or silver-green, is a flowering plant in the family Asteraceae, native to North America. It is found in southern Canada and across the northern and western United States. It is the only species of Adenocaulon native to the United States or Canada. The genus name Adenocaulon is derived from Greek, and refers to the glandular stem. The English name "Pathfinder" was given to this species, because if you walk through a patch of its leaves you will find the path you made through them, with some of the white undersides of the leaves having been exposed, by them having been twisted. Over time, the plant will turn its leaves back with the green side up, and the white side down.
Draba albertina is a species of flowering plant in the mustard family known as the Arc dome draba,slender draba or slender whitlow-grass.
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.
Erigeron breweri is a North American species of flowering plants in the family Asteraceae known by the common name Brewer's fleabane.
Layia glandulosa is a species of flowering plant in the family Asteraceae known by the common names whitedaisy tidytips and white layia. It is native to western North America south from central Washington (state) to Baja California and east to Utah and Arizona, where it is common in a number of habitat types.
Agoseris aurantiaca is a species of plant in the family Asteraceae, commonly called orange agoseris or mountain dandelion. It is widespread in western North America.
Arnica mollis is a North American species of arnica in the sunflower family, known by the common name soft arnica, or hairy arnica. It is native to Canada and the United States (Alaska and the western mountains as far south as San Bernardino County, California and Rio Arriba County, New Mexico. There are also isolated populations in the White Mountains of Coos County, New Hampshire. The species grows in subalpine mountain habitat such as meadows and streambanks.
Eucephalus breweri is a North American species in the family Asteraceae known by the common name Brewer's aster. It is native to California where it grows primarily in the Sierra Nevada at subalpine elevations. Its range extends into northwestern Nevada and southwestern Oregon.
Balsamorhiza sagittata is a North American species of flowering plant in the tribe Heliantheae of the family Asteraceae known by the common name Arrowleaf Balsamroot. Also sometimes called Oregon sunflower, it is widespread across western Canada and much of the western United States.
Calandrinia breweri is a species of flowering plant in the family Montiaceae known by the common name Brewer's redmaids.
Chaenactis stevioides, with the common names Esteve's pincushion and desert pincushion, is a species of flowering plant in the daisy family. It is also sometimes called false yarrow or broad-leaved Chaenactis.
Boechera breweri is a species of flowering plant in the family Brassicaceae known by the common name Brewer's rockcress.
Erythranthe breweri is a species of monkeyflower known by the common name Brewer's monkeyflower. It is native to western North America from British Columbia to California to Colorado, where it grows in moist spots in several habitat types. This is a hairy annual herb producing a thin, erect stem up to 21 centimeters tall. The herbage is reddish green in color. The paired opposite leaves are linear in shape and up to 3.5 centimeters long. The plant bears small tubular flowers, each with its base encapsulated in a lightly hairy calyx of sepals with tiny equal lobes at its mouth. The five-lobed flower corolla is just a few millimeters long and light purplish pink in color, often with darker spots in the throat. It was formerly known as Mimulus breweri.
Mitella breweri is a species of flowering plant in the saxifrage family known by the common names Brewer's mitrewort and Brewer's bishop's cap. It is native to western North America from British Columbia to central California and Nevada, where it grows in moist meadows, woods, and mountain forests. It is a rhizomatous perennial herb growing up to about 30 or 40 centimeters tall. Most of the leaves occur around the base of the stem. They have rounded blades several centimeters wide and edges divided into dull toothed lobes. The erect inflorescence bears several flowers, sometimes over 50, usually along one side of the stem. The distinctive flower is saucer-shaped with five greenish petals which are divided into narrow, whiskerlike lobes.
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.
Draba norvegica is a species of flowering plant in the mustard family (Brassicaceae) know by the common names Norwegian draba and Norwegian whitlow grass.
Potentilla breweri is a species of Potentilla known by the common name Brewer's cinquefoil.
