Arnica is a genus of perennial, herbaceous plants in the sunflower family (Asteraceae). The genus name Arnica may be derived from the Greek arni, "lamb", in reference to the plants' soft, hairy leaves. Arnica is also known by the names mountain tobacco and, confusingly, leopard's bane and wolfsbane—two names that it shares with the entirely unrelated genus Aconitum.
Eurybia conspicua, commonly known as the western showy aster, is a North American species of plants in the family Asteraceae. It is native to western Canada and the western United States.
Arnica longifolia is a North American species of arnica in the sunflower family, known by the common names seep-spring arnica, longleaf arnica and spearleaf arnica. This flowering perennial is native to the forests of western Canada and the western United States.
Arnica parryi is a North American species of flowering plant known by the common names Parry's arnica or nodding arnica. It is native to western Canada and the western United States as far south as Inyo County, California and McKinley County, New Mexico. It grows in temperate coniferous forests and alpine meadows in mountainous areas, primarily the Rocky Mountains, Cascades, and Sierra Nevada.
Arnica cordifolia is a species of arnica in the sunflower family, known by the common name heartleaf arnica. It is native to western North America.
Arnica discoidea is a North American species of arnica in the sunflower family. It is known by the common name rayless arnica because its flower heads have disc florets but none of the showier ray florets. It is native to the woodlands, forests, and chaparral of the western United States (Washington, Oregon, California, and western Nevada.
Arnica latifolia is a species of arnica in the sunflower family, known by the common names broadleaf arnica, broad leaved arnica, mountain arnica, and daffodil leopardbane. It is native to western North America from Alaska east to Northwest Territories and south to Mono County, California, and Taos County, New Mexico. It grows in mountain habitat such as forest and meadows.
Arnica mollis, the soft arnica or hairy arnica, is a perennial herbaceous flowering plant in the family Asteraceae. It is native to Canada and the United States. There may be a disjunct population of this species in Coös County, New Hampshire. The species grows in subalpine mountain habitat such as meadows and streambanks.
Arnica venosa is a rare California species of flowering plant in the family Asteraceae known by the common name Shasta County arnica. It should not be confused with the Mt. Shasta arnica, A. viscosa.
Symphyotrichum campestre is a species of flowering plant of the family Asteraceae commonly known as western meadow aster. It is native to much of western North America where it grows in many habitats, generally at some elevation.
Symphyotrichum eatonii is a species of aster known by the common name Eaton's aster. It is native to much of western North America from British Columbia to Saskatchewan, the Sierra Nevada in California, the Rocky Mountains region, to Arizona and New Mexico, where it grows in many habitats, especially wet areas such as meadows and near ditches. It is also known by the scientific name Symphyotrichum bracteolatum.
Arnica dealbata is a species of Californian plants in the tarweed tribe within the aster family
Arnica lonchophylla is a species of flowering plant in family Asteraceae. The common names for this species includes longleaf arnica, northern arnica, and spear-leaved arnica. It has daisy-like yellow flowers that are 2.5 to 5 cm across with a yellow center disks.
Arnica gracilis is a North American species of flowering plant in the family Asteraceae, known by the common name smallhead arnica. It is native to western Canada and the northwestern United States (Washington, Oregon, Idaho, Montana, Wyoming, north-central Colorado, and northern Utah.
Arnica ovata is a North American species of flowering plant in the family Asteraceae, known by the common name sticky leaf arnica. It is native to western Canada, and the western United States.
Arnica rydbergii is a North American species of flowering plant in the family Asteraceae, known by the common name Rydberg's arnica or subalpine arnica or subalpine leopardbane. It is native to western Canada, and the western United States.
Helianthus mollis is a species of sunflower known by the common names ashy sunflower or downy sunflower. It is widespread across much of the United States and Canada, primarily the Great Lakes region from Ontario south to Texas and Alabama. Additional populations are found in the states of the Atlantic Coast from Maine to Georgia, but these appear to be introduced.
Edith May Farr (1864-1956) was an American botanist noted for her study of Rocky Mountain and Canadian flora. Originally from Philadelphia, she was active collecting plants in the Selkirk Range and in the southern Canadian Rockies. In 1904, she collected specimens for the University of Pennsylvania in the Rocky Mountains with Mary Schäffer Warren and Olive S. Day.
Symphyotrichum tradescantii is a species of flowering plant in the family Asteraceae native to northeastern North America. Common names include Tradescant's aster and shore aster.
Symphyotrichum yukonense 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 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 in mud flats and on sandy or silty lake shores. It is a NatureServe Vulnerable (G3) species and is classified Imperiled (S2) in its Canadian range.
