| Arnica gracilis | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Arnica |
| Species: | A. gracilis |
| Binomial name | |
| Arnica gracilis Rydb. | |
| Synonyms | |
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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 (Alberta, British Columbia) and the northwestern United States (Washington, Oregon, Idaho, Montana, Wyoming, north-central Colorado (Jackson County), and northern Utah (Cache, Summit, + Daggett Counties).
Arnica gracilis is an herb up to 30 cm (12 inches) tall. Flower heads are yellow, with both ray florets and disc florets.
References
- The Plant List Arnica gracilis Rydb.
- ^ Flora of North America, Smallhead arnica, Arnica gracilis
- Rydberg, Per Axel 1897. Bulletin of the Torrey Botanical Club 24(6): 297
- Biota of North America Program 2014 county distribution map
External links
- Paul Slichter, The Arnicas of Mt. Adams (Washington State), Slender Arnica, Mountain Arnica Arnica gracilis
- Eastern Washington University, Flora of Eastern Washington and Adjacent Idaho
| Taxon identifiers | |
|---|---|
| Arnica gracilis |
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