Arnica louiseana

Arnica louiseana is a Canadian species of flowering plant in the family Asteraceae, known by the common name Lake Louise arnica or snow arnica.[1][2] It is native to the Canadian Rockies in Alberta and British Columbia, and named for Lake Louise in Banff National Park.[3]

Arnica louiseana
Lake Louise arnica painted by Mary Vaux Walcott, 1905
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Arnica
Species:
A. louiseana
Binomial name
Arnica louiseana

Arnica louiseana is a small plant rarely more than 20 cm (8 inches) tall. Flower heads are yellow, with both ray florets and disc florets. It grows at high elevations in alpine tundra and rocky outcrops.[1][3]

References
  1. Flora of North America, Lake Louise arnica, snow arnica, Arnica louiseana
  2. Biota of North America Program 2014 state-level distribution map
  3. Farr, Edith May 1906. Ottawa Naturalist 20(5): 109


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