UW Burke Herbarium species comparison

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Arnica parryi

Parry's arnica
Habit Heads generally several, narrow, with few disk flowers; involucre 10-14 mm. high with pointed bracts, covered with stalked glands; rays about 8 or about 13, 1.5-2 cm. long; pappus straw-colored, sub-plumose.
Leaves

Cauline leaves 2-4 pairs, strongly reduced upward, with lanceolate or lance-ovate blades 5-20 cm. long and 1.5-6 cm. wide.
Flowers

Heads several, nodding in bud, rayless;

involucres 10-14 mm. high, their bracts sharp pointed;

pappus tawny, sub-plumose.
Fruits

Achenes glabrous to glandular or hairy.

Arnica parryi
Identification notes The other rayless species in our area, Arnica discoidea, has wider leaves, and the heads are upright in bud.
Flowering time June-August
Habitat Open woods and meadows, from middle elevations to the alpine.
Distribution
Occurring on both sides of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Not of concern
Sibling taxa
A. chamissonis, A. cordifolia, A. discoidea, A. fulgens, A. gracilis, A. lanceolata, A. latifolia, A. longifolia, A. mollis, A. nevadensis, A. ovata, A. rydbergii, A. sororia
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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