bio.wikisort.org - Plant

Arnica parryi is a North American species of flowering plant known by the common names Parry's arnica or nodding arnica.[3] It is native to western Canada (Yukon, British Columbia, Alberta) 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.[4]

Arnica parryi
Alpine Lakes Wilderness, Washington
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Arnica
Species:	A. parryi
Binomial name
Arnica parryi Gray
Synonyms[1]
Arnica sonnei Greene Arnica angustifolia A.Gray 1862 not Vahl 1816 nor Turcz. ex Ledeb. 1845[2] Arnica eradiata (A.Gray) A.Heller

Arnica parryi 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.[5]

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 no ray florets. The fruit is a cylindrical achene about half a centimeter long with a bristly pappus.[5]

References

External links

• Media related to Arnica parryi at Wikimedia Commons
• Jepson Manual Treatment
• united States Department of Agriculture Plants Profile
• Callphotos Photo gallery, University of California

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