Annual to perennial with cylindric rootstock. Stems erect, weakly ribbed, glabrous or with sparse fine hairs above, 30-60 cm tall. Lvs linear to lanceolate-subulate, entire, acuminate, 5-25 × 0.1-1 cm; base sheathing; margins undulate or flat. Capitula solitary; peduncles not swollen (< 3 mm thick at fruiting). Involucre with a band of felted or cobwebby tomentum at base; involucral bracts 6-8, lanceolate-acuminate, 3-4 × c. 1 cm at fruiting, usually glabrous, sometimes tomentose near apex. Corolla yellow, < involucre. Achenes fusiform, ribbed, the outer weakly muricate, the inner smooth; body c. 8-10 mm long; beak = or < body, clavate at apex. Pappus sordid, 1.5-2 cm long, plumose, in 2 rows seated on a distinct, tomentose annulus.