Burke: Arnica ovata

	Arnica ovata
	sticky arnica, sticky-leaf arnica
Habit	Perennial from a freely rooting rhizome, the stems solitary or tufted, 1.5-4 dm. tall.
Leaves	Cauline leaves 3-4 pairs, mostly sessile, ovate to deltoid or elliptic, irregularly toothed, the middle ones the largest, with blades 4-8 cm. long and 2-6 cm. wide.
Flowers	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.
Fruits	Achene.

	Arnica ovata
Flowering time	July-September
Habitat	Rocky places from middle elevations to the subalpine and alpine.
Distribution	Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana and Utah. [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. parryi, A. rydbergii, A. sororia
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Arnica ovata

sticky arnica, sticky-leaf arnica

Habit

Perennial from a freely rooting rhizome, the stems solitary or tufted, 1.5-4 dm. tall.

Leaves

Cauline leaves 3-4 pairs, mostly sessile, ovate to deltoid or elliptic, irregularly toothed, the middle ones the largest, with blades 4-8 cm. long and 2-6 cm. wide.

Flowers

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.

Fruits

Achene.