Mt. Shasta Arnica

Arnica viscosa A. Gray, Proc. Am. Acad. 13: 374. 1878
Raillardella paniculata Greene, Erythea 3: 48. 1895.
Rootstock short; stem leafy, 3-5 dm. high, branched above, sulcate, glandular-hirsute; leaves small, the lower scale-like, those higher up 1-3 cm. long, sessile, oblong-ovate, entire, acute, rather thick, densely glandularor viscid-hirsute; heads solitary at the end of the leafy branches; involucre turbinate, rarely 1 cm. high and fully as broad, glandular-hirsute; bracts 1 1-15, lanceolate, acuminate; ray-flowers wanting; disk-corollas ochroleucous, the tube 2 mm. long, the throat 4 mm. long, and the lobes about 1 mm. long; achenes 5 mm. long, sulcate, glabrous or sparingly hirsute; pappus-bristles straw-colored, 5 mm. long, short-plumose.
Type locality: Mount Shasta, California. w
Distribution: Northern California and southern Oregon.