Erect, simple, thinly woolly perennial 1-6 dm; lvs commonly subglabrate above, linear or narrowly oblanceolate, the larger basal and lower cauline ones 3-8 mm wide, those at the base of the infl 2-3 mm wide; infl narrow, spiciform-thyrsoid, somewhat leafy-bracteate, with 10-many heads; invol scarcely woolly, or woolly only at the base, 5-7 mm, its bract rounded or obtuse, light stramineous or greenish-stramineous toward the base, some or all with a conspicuous dark brown, commonly reverse-V-shaped spot above the middle, the tip paler; pappus- bristles united at base, falling in a ring; achenes sparsely strigose; 2n=56. Open woods and waste places; circumboreal, s. to n. Me., n. N.H., n. N.Y., and n. Wis. July-Sept.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.