Arnica longifolia
Species of flowering plant
From Wikipedia, the free encyclopedia
Arnica longifolia is a North American species of arnica in the sunflower family, known by the common names seep-spring arnica,[2]: 112 longleaf arnica and spearleaf arnica.[3] This flowering perennial is native to the forests of western Canada (British Columbia + Alberta[4]) and the western United States (Rocky Mountains, Cascades, Coast Ranges, Sierra Nevada and other mountains of California, Oregon, Washington, Idaho, Nevada, Utah, Wyoming, Colorado, and Montana).[5]
| Arnica longifolia | |
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Arnica |
| Species: | A. longifolia |
| Binomial name | |
| Arnica longifolia | |
| Synonyms[1] | |
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Description
Arnica longifolia is a rhizomatous plant forming large bunching patches of groundcover in moist, cool areas. The foliage is rough, mint-green, and sometimes sticky with glandular secretions. The stems are erect and bear daisylike flower heads with a diameter of 2 cm,[4] with deep yellow ray florets and yellow to reddish or orange disc florets. The fruit is a reddish achene with a small pappus.[6]
