Burke: Arnica lanceolata vs. Arnica lanceolata ssp. prima

	Arnica lanceolata	Arnica lanceolata ssp. prima
	clasping arnica, stream bank arnica	clasping arnica, streambank arnica, streambank leopardbane
Habit	Perennial from a freely-rooting rhizome, 3-8 dm. tall, more or less glandular and hairy.
Leaves	Cauline leaves 5-12 pairs, not much reduced upward, narrowly lance-elliptic or lance-ovate, sessile, more or less toothed, 5-12 cm. long and 1.2-6 cm. wide.
Flowers	Heads several; involucre 9-15 mm. high, its bracts sharply pointed; rays 8-14, pale yellow, 1-2 cm. long; pappus tawny, sub-plumose.
Fruits	Achenes sparsely hirsute and sometimes glandular.

	Arnica lanceolata	Arnica lanceolata ssp. prima
Flowering time	June-August	June-August
Habitat	Streambanks, moist woods and meadows from middle elevations to the subalpine.	Streambanks, moist woods and meadows from middle elevations to the subalpine.
Distribution	Occurring on both sides of the Cascades crest in Washington, including the Olympic Mountains and the northeastern region; Alaska to California, east to the Rocky Mountains, also in northeastern North America. [WildflowerSearch map] [BONAP county map]	Occurring on both sides of the Cascades crest in Washington, including the Olympic Mountains and the northeastern region; Alaska to California, east to the Rocky Mountains, also in northeastern North America. [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	A. chamissonis, A. cordifolia, A. discoidea, A. fulgens, A. gracilis, A. latifolia, A. longifolia, A. mollis, A. nevadensis, A. ovata, A. parryi, A. rydbergii, A. sororia
Subordinate taxa	A. lanceolata ssp. prima
Web links	Local floras: BC, OR, WA Local Web sites: 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	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Arnica lanceolata ssp. prima

clasping arnica, stream bank arnica

clasping arnica, streambank arnica, streambank leopardbane

Habit

Perennial from a freely-rooting rhizome, 3-8 dm. tall, more or less glandular and hairy.

Leaves

Cauline leaves 5-12 pairs, not much reduced upward, narrowly lance-elliptic or lance-ovate, sessile, more or less toothed, 5-12 cm. long and 1.2-6 cm. wide.

Flowers

Heads several;

involucre 9-15 mm. high, its bracts sharply pointed;

rays 8-14, pale yellow, 1-2 cm. long;

pappus tawny, sub-plumose.

Fruits

Achenes sparsely hirsute and sometimes glandular.

Arnica lanceolata ssp. prima

Flowering time

June-August

Habitat

Streambanks, moist woods and meadows from middle elevations to the subalpine.

Distribution

Occurring on both sides of the Cascades crest in Washington, including the Olympic Mountains and the northeastern region; Alaska to California, east to the Rocky Mountains, also in northeastern North America.

[WildflowerSearch map]

[BONAP county map]