Dryas octopetala, the mountain avens, eightpetal mountain-avens, white dryas or white dryad, is an Arctic–alpine flowering plant in the family Rosaceae. It is a small prostrate evergreen subshrub forming large colonies. The specific epithet octopetala derives from Greek octo 'eight' and petalon 'petal', referring to the eight petals of the flower, an unusual number in the Rosaceae, where five is the normal number. However, flowers with up to 16 petals also occur naturally.
There are over 190 vascular plant species on the Norwegian Arctic archipelago of Svalbard. This figure does not include algae, mosses, and lichens, which are non-vascular plants. For an island so far north, this number of species constitutes an astonishing variety of plant life. Because of the harsh climate and the short growing season, all the plants are slow growing. They seldom grow higher than 10 cm (4 in)
Pedicularis is a genus of perennial green root parasite plants currently placed in the family Orobanchaceae.
Pedicularis furbishiae, or Furbish's lousewort, is a perennial herb found only on the shores of the upper Saint John River in Maine and New Brunswick. Furbish's lousewort was first recognized as a new species by Maine naturalist and botanical artist Kate Furbish in 1880. It is considered an endangered species in the United States and Canada, and is threatened by habitat destruction, as well as riverside development, forestry, littering and recreational use of the riverbank. It was formerly in the family Scrophulariaceae, but is now placed in the family Orobanchaceae. Once thought to be extinct, it is considered a Lazarus taxon.
Pedicularis groenlandica is a showy flowering plant in the family Orobanchaceae commonly known as elephant's head, little pink elephant, elephantella, or similar common names inspired by the resemblance of the flower to the head of an elephant. It is also less commonly known as butterfly tongue for the long beak on the flower. Like many other plants in genus Pedicularis, it is a parasitic plant and depends on host plants to survive.
Pedicularis attollens is a species of flowering plant in the family Orobanchaceae known by the common name little elephant's head lousewort. It is native to Oregon and California, where it grows in moist mountainous areas such as meadows and bogs. It is a perennial herb growing up to 60 centimetres (24 in) in maximum height with one or more stems emerging from a caudex. The leaves are comblike, divided into many linear lobes. The inflorescence is a raceme occupying the top of the stem. The sepals of the flowers and the bracts between them are woolly. The flower is under 1 centimetre long and divided into a curving trunklike upper lip and a three-lobed lower lip. It is pink or purplish in color with darker stripes. The fruit is a capsule up to 1 centimetre long containing seeds with netlike surfaces.
Pedicularis centranthera is a species of flowering plant in the family Orobanchaceae known by the common names dwarf lousewort and Great Basin lousewort. It is native to the western United States from eastern Oregon and California to Colorado and New Mexico, where it grows in sagebrush and other basin and plateau habitat. It is a perennial herb producing several short stems a few centimeters tall from a basal caudex. The leaves are up to 20 centimeters long, lance-shaped and divided into many overlapping toothed, wrinkled, or fringed lobes. The inflorescence is a short raceme bearing many long, protruding, club-shaped flowers. Each flower may exceed 4 centimeters in length and is white or pale purple with dark purple tips on the wide ends of its upper and lower lips. The sepals of the flowers are shorter and hairy. The fruit is a capsule around centimeter long containing seeds with netlike surfaces.
Pedicularis contorta is a species of flowering plant in the family Orobanchaceae known by the common names coiled lousewort and curved-beak lousewort. It is native to western North America, including southwestern Canada and the northwestern United States, where it grows in moist mountainous habitat, such as bogs, shady forests, and meadows. It is a perennial herb producing one or more stems up to 40 centimetres (16 in) tall from a caudex. The leaves are up to 18 centimetres (7.1 in) long, lance-shaped to oblong, and divided into many linear lobes which may be toothed or smooth-edged. The inflorescence is a raceme of flowers occupying the top of the stem. Each flower is a centimeter long or slightly longer, white to yellowish in color, and divided into a coiled or curved beak-like upper lip and a flat, three-lobed lower lip. The fruit is a capsule up to a centimeter long containing seeds with netted surfaces.
Pedicularis dudleyi is a rare species of flowering plant in the family Orobanchaceae known by the common name Dudley's lousewort. It is endemic to central California, where it is known from about ten scattered occurrences along the coast and in the coastal mountain ranges. It has been found in three locations along the Central California coast. The species was named for 19th-century Stanford University botanist William Dudley.
Pedicularis howellii is an uncommon species of flowering plant in the family Orobanchaceae known by the common name Howell's lousewort. It is endemic to the Siskiyou Mountains of the Klamath Range in southern Oregon and northern California, where it grows on the edges of coniferous forests. This is a perennial herb producing one or more stems up to 45 centimetres (18 in) tall from a long caudex. The leaves are up to 20 centimetres (8 in) long, lance-shaped, and divided into many toothed oval lobes; those higher on the stem may be unlobed. The basal leaves fall away early. The inflorescence is a small raceme of flowers occupying the top of the stem. Each white to light purple flower is up to one centimetre long and is sickle-shaped, with a curved beak-like upper lip and a three-lobed lower lip which may be tucked into the hairy mass of sepals. The plant is pollinated by bumblebees including Bombus mixtus. Between the flowers are hairy to woolly triangular bracts. The fruit is a capsule just under a centimeter long containing seeds with netted surfaces.
Pedicularis semibarbata, known by the common name pinewoods lousewort, is a species of flowering plant in the family Orobanchaceae.
Pedicularis rainierensis is a species of flowering plant in the family Orobanchaceae commonly known as Mount Rainier lousewort. It is endemic to the vicinity of Mount Rainier in Washington state.
Carex bigelowii is a species of sedge known by the common names Bigelow's sedge, Gwanmo sedge, and stiff sedge. It has an Arctic–alpine distribution in Eurasia and North America, and grows up to 50 centimetres (20 in) tall in a variety of habitats.
Dryas integrifolia is a species of flowering plant in the rose family known by the common names arctic avens, entireleaf mountain-avens, white mountain-avens, northern white mountain avens, and mountain avens. It is native to northern parts of North America, where it occurs from Alaska across Canada to Greenland. It is a common species of the Arctic and it is probably the most common flowering plant on some of the western Arctic islands.
Castilleja kerryana is a species of flowering plant in the family Orobanchaceae. It is commonly known as Kerry's Indian paintbrush or Kerry’spaintbrush. It was formally described in 2013 and so far it is known only from a small population in the state of Montana, in the Northwestern United States.
Pedicularis verticillata, the whorled lousewort, is a species of flowering plant in the family Orobanchaceae which can be found in Alaska, North-Western Canada, and everywhere in China at the elevation of 2,100–4,400 metres (6,900–14,400 ft). Its native habitats include moist meadows and lakeshores.
Pedicularis lanata is a species of flowering plant in the family Orobanchaceae. It is native to Canada and Alaska. Its common names include woolly lousewort and bumble-bee flower.
Pedicularis palustris, commonly known as marsh lousewort or red rattle, is a plant species in the family Orobanchaceae. It is native to central and northern Europe and Asia where it grows in wetlands and boggy habitats. The International Union for Conservation of Nature has assessed its conservation status as being of least concern.
Pedicularis sylvatica, commonly known as common lousewort, is a plant species in the genus Pedicularis. It is native to central and northern Europe where it grows on moist acidic soils, moorland, grassy heathland and the drier parts of marshes.
Pedicularis lapponica, the Lapland lousewort, is a perennial hemiparasitic species of flowering plant in the family Orobanchaceae with yellow to creme coloured flowers.
