Arnica paniculata A. Nels.

Arnica paniculata A. Nels.; Coult. & Nels. Man. 572. 1909
Rootstock rather stout; stem 4-7 dm. high, ciliate-villous, and glandular-hirsute in the inflorescence; basal leaves long-petioled, the petioles 4-8 cm. long; blades ovate or rhombicovate, 4-10 cm. long, from cuneate to cordate at the base, sparingly and softly villous, sinuatedentate; stem-leaves 3-4 pairs, the lower long-petioled, the uppermo blade ovate or /late, sinuate-denticulate; heads rather many in a leafy-bractcd cymosc panicle; involucre hemispheric, 12 13 mm. high, IS IS mm broad, glandular villous; bracts 12-13, lincar-
otate, acuminate, ray-flowers 8-12, the ligules deep yellow, aboill I cm, long, 4 nun wide , disk -corollas g mm. long; achenes 6 mm long, striate, hirsute; pappus bfistll • B nun long,
white, barbellate.
I .11 bOt u.rrv: Southern Wyoming. Mm no-. Southern Wyoming.