Ray florets yellow to orange, neuter, 8–16, tube 2–2.5 mm long, rays (10–)20–30x(3–)8–12 mm; disc florets yellow to golden yellow, 6–8 mm long.
Achenes black, ellipsoid, 4.5–11.5 mm long, strigose; aristae 2, 0.5–2 mm long, divergent, nude or with a few retrorse barbs near the apex.
Leaves simple and narrowly elliptic to linear, or pinnately 3–7-lobed to bipinnatifid with linear segments, 3–15 cm long, the leaf or segments 1–6(–15) mm wide, sessile, apex acute, glabrous except for the revolute margins which have 2 rows of short scabrid hairs, rarely leaf scabrid; pseudo-petiole to 7.5 cm long.
Capitula terminal and few in lax cymes; stalks of individual capitula to 12 cm long; involucre 6–13 mm long; outer phyllaries green, 8–16, glabrous to pubescent, the inner 8–13 phyllaries with scarious margins, glabrous or nearly so; paleae thick, yellowish, 6–9 mm long.
Perennial or rarely annual herb 30–135 cm high, usually with several erect stems from the tuberous rootstock, stems little branched, sparsely pilose.