Flora of Alaska

Parrya nauruaq is a species of flowering plant in the family Brassicaceae that is native to southern Alaska. A subshrub, it grows on gravelly plains and slopes that support little other vegetation.

Artemisia senjavinensis, the arctic wormwood, is a rare Arctic species of plants in the family Asteraceae. It has been found only on the Seward Peninsula on the Alaskan side of the Bering Strait and on the Chukotka (Chukchi) Peninsula on the Russian side. Artemisia senjavinensis is a shrub up to 90 cm (3 feet) tall, with many stems densely clumped together. Leaves are gray-green, woolly, mostly in rosettes close to the ground. There are many small yellow or tan flower heads. The species grows at low elevations near the shore.

Claytonia scammaniana is a biogeographically significant species of Claytonia, which is indigenous to the mountain chains of Alaska and Yukon. The species has been subject of differing taxonomic opinions and confusion with Claytonia arctica and C. sarmentosa. A taxonomic revision including a review of previous studies of Claytonia scammaniana was published in 2006.

Picea × lutzii is a hybrid spruce tree that is a natural cross between white spruce and Sitka spruce occurring where the ranges of the two species overlap in coastal south-central Alaska and coastal British Columbia. Its common name is Lutz spruce. Its morphology is intermediate between the two parent species, the maritime Sitka spruce and the white spruce of dryer climates further inland. In addition to the parent spruces it shares its ecosystem with Tsuga heterophylla and T. mertensiana. The tree was named for Harold John Lutz, a scientist who specialized in forest soils and worked briefly

Carex arctiformis, the polar sedge, is a species of sedge native to sphagnum bogs and other wetlands in northwestern North America (British Columbia and southeastern Alaska). It was first formally named by Kenneth Mackenzie in 1931.

Boykinia richardsonii is a species of flowering plant in the family Saxifragaceae, endemic to Alaska and the adjacent Canadian territory of Yukon. It is commonly known as Richardson's brookfoam, but has also been called Alaska boykin, bearflower, Richardson's boykin and Richardson's saxifrage. "Bearflower" reflects its popularity with grizzly bears as forage in the summer months when it flowers. The species is named for Scottish naturalist John Richardson, who first identified it on his mid-1820s exploration of the western Canadian Arctic coast with John Franklin. William Jackson Hooker first

Artemisia globularia, the purple wormwood, is a rare Asian and North American species of plants in the family Asteraceae. It is native to Alaska, Yukon Territory, and the Chukotka Autonomous Okrug of Russia.

Erigeron purpuratus is a North American species of flowering plant in the family Asteraceae known by the common name purple fleabane. The species grows in Alaska (part of the United States) and Yukon (part of Canada). Erigeron purpuratus is a perennial herb up to 14 centimeters (5.6 inches) tall, producing a large branching caudex that serves to spread the plant into clonal clumps. The plant generally produces only 1 flower head per stem, the bracts forming the sides of the head appearing purple. Each head has 40–90 purple, pink or white ray florets surrounding numerous yellow disc florets.

Arcteranthis is a genus of flowering plants belonging to the family Ranunculaceae. It contains a single species, Arcteranthis cooleyae. Its native range is Washington, British Columbia and Alaska.

Androsace americana, synonym Douglasia arctica, known as the Mackenzie River dwarf primrose, is a species of flowering plant in the primrose family, Primulaceae. It is native to subarctic North America (Alaska, the Northwest Territories and Yukon).

Penstemon serrulatus is a species of penstemon known by the common names Cascade penstemon, coast penstemon, or serrulate penstemon. It is native to the Pacific Northwest of North America, from Oregon to Alaska.

Coptis aspleniifolia, commonly known as fernleaf goldthread or spleenwort-leaf goldthread, is found in the northern two-thirds of British Columbia, in Alaska, and along the Cascades into Washington and is a native plant of the temperate rain forests of the region. It is often found in the understory of the herb layer of coniferous forests as part of a multilayered canopy system on gleysolic or organic soils. Also found in wet woods and bogs, the fernleaf goldthread is not invasive or poisonous. The plant is considered common and widespread in its native range. An evergreen perennial, the

Cirsium edule, the edible thistle or Indian thistle, is a species of thistle in the genus Cirsium, native to western North America from southeastern Alaska south through British Columbia to Washington and Oregon, and locally inland to Idaho. It is a larval host to the mylitta crescent and the painted lady. Cirsium edule is a tall herbaceous perennial plant, reaching 1–2 m (39–79 in) in height. The leaves are very spiny, lobed, 10–30 cm long and 2–5 cm broad (smaller on the upper part of the flower stem). The inflorescence is 3–4 cm diameter, purple, with numerous disc florets but no ray

Veronica alaskensis, known as Alaska speedwell or northern kittentails, is a flowering plant in the genus Veronica of the family Plantaginaceae. It was first formally named in 1933 by Francis W. Pennell and was transferred to the genus Veronica in 2004. Veronica alaskensis is native to Alaska and Yukon.

Taraxacum carneocoloratum, also known as the pink dandelion or fleshy dandelion, is a perennial species of dandelion. The species is endemic to Yukon and Alaska, occurring only in unglaciated areas of western Yukon, specifically North Fork Pass in the Ogilvie Mountains and Ivvavik National Park. The species is characterized by the absence of horns or tubercles on the tips of the involucral bracts, a typically small height of less than 9 cm, pink to flesh-colored petals, and a yellowish pappus. It blooms between June and August. The species was first described in 1945.

Phyllospadix serrulatus is a species of aquatic plant in the Zosteraceae family. It is referred to by the common name toothed surfgrass, and is found along the shorelines of British Columbia and southern Alaska. It is also found in Oregon. It grows in salt marshes in the intertidal zone. Phyllospadix serrulatus is a grass-like herb with leaves up to 60 cm (24 in) long, with teeth along the margins toward the tip.

Koenigia alaskana (synonym Aconogonon alaskanum, Persicaria alpina) is an Asian and North American species of flowering plant in the buckwheat family known by the common names Alaska wild-rhubarb and alpine knotweed.

Elymus alaskanus, more commonly known as Alaskan wheatgrass, is an autogamous perennial that is native to North America and part of the family Poaceae. This complex is widespread and has diverged into different taxa based on morphological and cytological studies.

Symphyotrichum yukonense (formerly Aster yukonensis) is a species of flowering plant in the family Asteraceae endemic to disjunct areas in Alaska and the Canadian territories of Yukon and Northwest Territories. It has the common name of Yukon aster, and it is a perennial, herbaceous plant 5 to 30 centimeters (2 to 12 inches) in height. Its flowers have purple to blue ray florets and yellow to brown disk florets. S. yukonense grows at elevations of 300–1,500 meters (1,000–4,900 feet) in mud flats and on sandy or silty lake shores. It is a NatureServe Vulnerable (G3) species and is classified

Symphyotrichum pygmaeum (formerly Eurybia pygmaea and Aster pygmaeus) is a species of flowering plant in the family Asteraceae. Commonly known as pygmy aster, it is a perennial, herbaceous plant that may reach heights of 1.5 to 15 centimeters (1⁄2 to 6 inches). Its summer-blooming flowers have purple to violet ray florets and yellow disk florets.

Sanguisorba menziesiii, commonly known as Menzies' burnet, Sanguisorbe de Menzies, and small-head burnet, is a species of flowering plant in the family Rosaceae. It is a perennial or helophyte native to Alaska, British Columbia, and Washington in northwestern North America. It grows in coastal bogs and marshes from coastal southern Alaska through coastal British Columbia to the Olympic Peninsula of Washington (Grays Harbor and Clallam counties). The species was first described by Per Axel Rydberg in 1908.

Rumex beringensis is a flowering plant species in the family Polygonaceae.

Montia bostockii, known by the common name Bostock's minerslettuce, is a species in the genus Montia found in Alaska and northwestern Canada.

Erigeron hyperboreus is a rare Arctic species of flowering plant in the family Asteraceae known by the common name tundra fleabane. It has been found only in arctic tundra in Alaska, Yukon, and Northwest Territories.

Erigeron porsildii is an Arctic species of flowering plant in the family Asteraceae known by the common name Porsild's Arctic fleabane. It has been found in Alaska, Yukon, and the Northwest Territories. Erigeron porsildii is a perennial herb up to 25 centimeters (10 inches) tall, spreading by means of underground rhizomes. Leaves and stems are covered with many hairs The plant generally produces only one flower head per stem. Each head has 65–110 blue, lavender, or white ray florets surrounding numerous yellow disc florets. The species grows on cliffs, talus, gravel, and dry tundra.

Erigeron muirii, or Muir's fleabane, is a rare Arctic species of flowering plant in the family Asteraceae. It has been found only in northern Alaska and the northern Yukon Territory, including Herschel Island in the Arctic Ocean. It grows in tundra, dry slopes, and rock outcrops. Erigeron muirii is a small perennial herb rarely more than 12 cm (5 inches) high, covered with thick wool that gives it a gray-green appearance, spreading by means of underground rhizomes. The plant generally produces only one flower head per stem, the head containing sometimes as many as 100 ray florets surrounding

Cypripedium yatabeanum, known as the spotted lady slipper or palomino lady's slipper, is a species of terrestrial orchid in the family Orchidaceae. It is native to Alaska (including the Aleutian Islands), to the Russian Far East (Kamchatka and the Kuril Islands), and northern Japan. It is distinguished from the closely related Cypripedium guttatum by its yellow-green flowers and narrower, longer lip. It is a perennial herb that grows up to 2 ft (0.61 m) tall. Its habitats include mesic tundra, marsh borders, and beach dune lag.

Tolmiea menziesii is a species of flowering plant in the family Saxifragaceae. It is known by the common names youth on age, pick-a-back-plant, piggyback plant, and thousand mothers. It is a perennial plant native to the West Coast of North America, occurring in northern California, Oregon, Washington, British Columbia and southern Alaska. It occurs as a naturalised plant or garden escapee in Scotland, parts of Wales, Northern Ireland and northern and western parts of England.

Tolmiea is a genus of flowering plants in the saxifrage family containing two species native to northwestern North America. The genus was formerly considered to be monotypic until diploid populations were split off as T. diplomenziesii from the tetraploid populations of T. menziesii. The genus was named after the Scottish-Canadian botanist William Fraser Tolmie.

Sedum oreganum is a species of succulent plant of the genus Sedum. It grows along the Pacific Coast of North America from Alaska to far northern California. The plant, known by the common name Oregon stonecrop, grows in many types of rocky habitat, including coastal bluffs and cliffs and the talus of higher inland mountains.