Distribution: Occurring in the Cascades Mountains of Klickitat and Skamania counties in Washington; Washington to California, east to Nevada.
Habitat: Forest openings from middle elevations to the subalpine.
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Apomixis, bumblebees, butterflies
Perennial from long rhizomes, the stems mostly solitary, 2-5 dm. tall, glandular-puberulent and more or less long-hairy.
Long-petiolate, deltoid or sub-cordate basal leaves commonly on separate short shoots; cauline leaves 2-4 pairs, reduced upward, petiolate, ovate, 4-8 cm. long and 1.5-5 cm. wide, irregularly toothed, with long, soft hairs on both sides, pale beneath.
Heads usually several, rayless; involucre 11-13 mm. high, with hairs and stalked glands throughout.
The similar rayless Arnica parryi has narrower leaves and the heads are nodding in bud.