Flora of Alberta

Potentilla diversifolia or Potentilla × diversifolia is a species of flowering plant in the Rose Family (Rosaceae) known by the common names varileaf cinquefoil, different-leaved cinquefoil, and mountain meadow cinquefoil.

Hesperostellaria is a genus of flowering plants in the family Caryophyllaceae. It contains a single species, Hesperostellaria americana, a perennial native to subalpine areas of Alberta and Montana. The species was first described as Stellaria dichotoma var. americana in 1894, and later renamed Stellaria americana. In 2023 it was placed in the new monotypic genus Hesperostellaria as Hesperostellaria americana.

Hesperostellaria is a genus of flowering plants in the family Caryophyllaceae. It contains a single species, Hesperostellaria americana, a perennial native to subalpine areas of Alberta and Montana. The species was first described as Stellaria dichotoma var. americana in 1894, and later renamed Stellaria americana. In 2023 it was placed in the new monotypic genus Hesperostellaria as Hesperostellaria americana.

Erigeron trifidus is a Canadian species of flowering plant in the family Asteraceae known by the common name Alberta fleabane. It is native to the provinces of Alberta and British Columbia in western Canada. Erigeron trifidus grows on talus and scree slopes in alpine zones at high elevations. It is a small perennial herb rarely more than 10 centimeters (4 inches) tall, producing a branching underground caudex. Leaves are usually 3-lobed, up to 3 cm (1.2 inches) long. The inflorescence is made up of only one flower heads per stem. Each head contains 20–40 white, lavender, or pink ray florets

Erigeron pallens is a species of flowering plant in the family Asteraceae known by the common name pale fleabane. It is native to the Rocky Mountains of western Canada (Alberta + British Columbia). There are some reports of the species in arctic regions but these populations have been reclassified under other species. Erigeron pallens is a tiny, unbranching perennial herb rarely more than 10 centimeters (4 inches) tall, producing a woody taproot. The leaves are covered with wool. The plant generally produces only 1 flower head per stem, each head with 50–60 white, pink, or purple ray florets

Erigeron lackschewitzii is a rare species of flowering plant in the family Asteraceae known by the common name Lackschewitz's fleabane. It is native to the Rocky Mountains in the Canadian province of Alberta and the US state of Montana. Erigeron lackschewitzii is a small perennial herb rarely more than 8 centimeters (0.8 inches) tall, producing a woody taproot. The leaves are mostly crowded around the base of the stem. The plant generally produces only one flower head per stem, each head with up to 68 purple or lavender ray florets each measuring 8-11 millimeters (0.3-0.4 inches) long. These

Arnica louiseana is a Canadian species of flowering plant in the sunflower family, known by the common name Lake Louise arnica or snow arnica. It is native to the Canadian Rockies in Alberta and British Columbia, and named for Lake Louise in Banff National Park. It is a small plant rarely more than 20 cm (8 in) tall. Flower heads are yellow, with both ray florets and disc florets. It grows at high elevations in alpine tundra and rocky outcrops.

Ribes watsonianum is a North American species of currant known by the common names spring gooseberry and wild gooseberry, found in the US states of Washington and Oregon.

Aquilegia jonesii, or Jones' columbine, is a perennial species of plant in the family Ranunculaceae, endemic to Alberta, Montana, and Wyoming.

Potamogeton × griffithii is a hybrid pondweed between Potamogeton alpinus and Potamogeton praelongus. It occurs in oligotrophic, moderate alkalinity lakes.

Erigeron aureus, the Alpine yellow fleabane, is a species of flowering plant in the family Asteraceae, native to the Cascades and Rocky Mountains of northwestern North America (Alberta, British Columbia, Washington). The specific epithet aureus means "golden yellow".

Phacelia lyallii, common name Lyall's phacelia, is a species of plant in the family Boraginaceae. Classifications in older literature place it within the Hydrophyllaceae.

Conimitella williamsii is a species of flowering plant belonging to the family Saxifragaceae. It is the sole species in genus Conimitella. It is a perennial native to Alberta in west-central Canada and to Idaho, Montana, Wyoming, and Colorado in the northwestern United States.

Antennaria aromatica, the scented pussytoes, is a North American species of plants in the family Asteraceae. It is native to the Rocky Mountains of Alberta, Montana, Idaho, and Wyoming. The crushed foliage has a strong scent resembling that of citronella.

Larix lyallii, the subalpine larch, or simply alpine larch, is a deciduous, coniferous tree native to northwestern North America. It lives at high altitudes, from 1,500 to 2,900 meters (4,900 to 9,500 ft), in the Rocky Mountains of Idaho, Montana, British Columbia, and Alberta. There is a disjunct population in the Cascade Range of Washington. Subalpine larch is hardy and can survive at low temperatures and on thin rocky soils, often being found near the tree line. It can grow in a variety of soils as long as the soil is moist but well drained. However, it is relatively shade intolerant.

Lupinus nootkatensis, the Nootka lupine, is a perennial plant of the genus Lupinus in the legume family, Fabaceae. It is native to North America and was introduced to Europe in the late 18th century. It grows up to 60 cm tall, and has bright bluish-purple flowers. The Nootka lupine is common on the west coast of North America, and is one of the species from which the garden hybrids are derived, being valued in Britain and other North-European countries for its tolerance of cool, wet summers. In North America, it grows along roadsides, gravel bars, and forest clearings from the Aleutian

Suckleya is a monotypic genus of flowering plants belonging to the family Amaranthaceae. It only contains one known species, Suckleya suckleyana (Torr.) Rydb. Its native range is western central Canada (within the province of Alberta) to western central and southern central United States (with the states of Colorado, Montana, New Mexico, Texas and Wyoming). The genus name of Suckleya and the Latin specific epithet of suckleyana is in honour of George Suckley (1830–1869), an American physician and naturalist notable as an explorer of the Washington and Oregon territories in the 1850s, and

Sisyrinchium septentrionale, the northern blue-eyed grass, is a plant species native to western North America. It has been known from Canada (British Columbia, Alberta, Saskatchewan, and Northwest Territories), and 4 counties in the US State of Washington (Okanagan, Ferry, Stevens and Pend Oreille) and 2 in Montana (Sheridan and Richland). Sisyrinchium septentrionale is a perennial herb up to 50 cm tall. Flowers are pale blue to light violet-blue, with yellow bases.

Suksdorfia is a genus in the family Saxifragaceae. It has only two accepted species, Suksdorfia alchemilloides and Suksdorfia violacea, native to central South America and northwestern North America, respectively. Asa Gray named the genus Suksdorfia after Wilhelm Nikolaus Suksdorf, a mostly self-taught German botanist who came to the United States at age eight and found the species S. violacea in the northwestern United States. S. violacea is the type species for this genus. Since the International Rules of Botanical Nomenclature of 1906, the genus name Suksdorfia Gray, published in 1879, has

Castilleja parviflora is a species of Indian paintbrush known by the common name mountain Indian paintbrush. It is native to western North America from Alaska to California, where it grows in high mountain habitat, including areas of alpine climate.

Physaria didymocarpa is a species of flowering plant in the mustard family known by the common name common twinpod. It is native to western North America, including British Columbia and Alberta in Canada and the northwestern United States. This perennial herb produces several decumbent stems from a hairy caudex. The stems are around 10 centimetres (3.9 in) in length and have lance-shaped leaves measuring one or two centimeters long. The ends of the stems have inflorescences which are dense racemes of yellow flowers. The petals are roughly one centimeter long. The fruit is an inflated silicle

Castilleja hispida is a species of flowering plant in the family Orobanchaceae, also known by the common name harsh paintbrush, or harsh Indian paintbrush. It is native to British Columbia, Alberta, Washington, Idaho, Montana, and Oregon.

Townsendia condensata is a species of flowering plant in the family Asteraceae known by the common names cushion Townsend daisy and cushion townsendia. It is native to North America where it is known from many scattered occurrences in the mountains of the western United States and Alberta in Canada. It is mainly limited to the alpine climates of high mountain peaks, where it grows in meadows, tundra, and barren, rocky talus. It grows alongside other alpine plants such as Eriogonum androsaceum. This is a petite biennial or perennial herb taking a clumped form just a few centimeters tall, its

Conimitella williamsii is a species of flowering plant belonging to the family Saxifragaceae. It is the sole species in genus Conimitella. It is a perennial native to Alberta in west-central Canada and to Idaho, Montana, Wyoming, and Colorado in the northwestern United States.

Cirsium foliosum , also called leafy thistle, foliose thistle, elk thistle, or Evert's thistle, is a North American plant species in the tribe Cardueae within the family Asteraceae. The species is native to Alaska, Yukon, Northwest Territories, Alberta, British Columbia, and Wyoming. Cirsium foliosum is a biennial or perennial herb up to 70 cm (28 inches) tall, blooming only once before dying. Leaves have thin spines along the edges. There are several flowering heads per plant, with white or pale pink disc florets but no ray florets. The roots and stems are edible raw or cooked. The stem,

Sabulina elegans, the elegant stichwort or Ross' stitchwort, is a species of flowering plant. It is native to Alaska and northwestern Canada (Alberta, British Columbia, Northwest Territories, and Yukon Territory).

Erigeron lanatus is a species of flowering plant in the family Asteraceae known by the common name woolly fleabane. It is native to western North America, where it occurs in the mountains straddling the border between British Columbia and Alberta and Montana, with isolated populations occurring as far north as Yukon and as far south as Colorado. Erigeron lanatus is a small perennial herb growing just a few centimeters tall. The leaves are mostly basal, each roughly lance-shaped and up to 3 centimeters (1.2 inches) long. They are coated in loose, woolly fibers. The inflorescence is made up of

Oreocarya nubigena, synonym Cryptantha nubigena, is a perennial plant in the borage family (Boraginaceae), native to western North America. It may be called the Sierra cryptantha and Sierra oreocarya.

The western larch (Larix occidentalis) is a species of larch native to the mountains of western North America (Pacific Northwest, Inland Northwest); in Canada in southeastern British Columbia and southwestern Alberta, and in the United States in eastern Washington, eastern Oregon, northern Idaho, and western Montana. It is the most productive of the three species of larch native to North America.

Sedum divergens, commonly called spreading stonecrop, Cascade stonecrop or Pacific stonecrop, is a low growing flowering plant of the genus Sedum. It is native to western North America from Alaska to northern California. This plant is common in the lava beds of Northwest British Columbia where it is one of the food plants of the Nisga'a first nation.