Arnica parryi
| Arnica parryi | |
|---|---|
 | |
| Arnica parryi in Alpine Lakes Wilderness | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Tribe: | Heliantheae |
| Genus: | Arnica |
| Species: | A. parryi |
| Binomial name | |
| Arnica parryi Gray | |
Arnica parryi is a species of arnica known by the common name Parry's arnica. It is native to western North America from Yukon to California to Colorado, where it is a resident of temperate coniferous forests.
This is a rhizomatous perennial herb producing a single unbranched stem to heights between 10 and 60 centimeters. There are oval-shaped leaves around the base of the stem and a few pairs of longer, narrower petioled leaves above them. The leaves may approach 20 centimeters in length on larger individuals.
The inflorescence holds one to several daisylike flower heads, which nod as buds and then pull erect when the face opens. Each head has a center filled with yellow disc florets and usually several yellow ray florets around the edge. The fruit is a cylindrical achene about half a centimeter long with a bristly pappus.
External links
Media related to Arnica parryi at Wikimedia Commons