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broad-leaved arnica, mountain arnica, daffodil leopardbane

Habit Perennial, 1-6 dm. tall, glandular at least above.
Leaves

Broad, long-petiolate basal leaves sometimes on short separate stalks; cauline leaves 2-4 pairs, lance-elliptic or broader, rarely cordate, more or less toothed, 2-14 cm. long and 1-8 cm. wide, the middle ones larger than the lower.

Flowers

Heads 1-several;

involucre 7-18 mm. high, more or less glandular;

pappus white, barbellate.

Fruits

Achenes glabrous, at least toward the base.

Arnica latifolia

Identification notes The similar Arnica cordifolia has larger heads, frequently solitary; its leaves and achenes are pubescent.
Flowering time June-August
Habitat Common in forest openings and meadows, and open, rocky areas from middle to high elevations in the mountains.
Distribution
Occurring on both sides of the Cascades crest in Washington; Alaska 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. longifolia, A. mollis, A. nevadensis, A. ovata, A. parryi, A. rydbergii, A. sororia
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