Perennial herb, 15–50 cm high; rhizome horizontal; stems unbranched except in the inflorescence, distally sparsely hairy, especially near the inflorescence where a patch of white or reddish tomentum subtends the involucre.. Leaves mostly in a rosette, lanceolate, 3–16 cm long, 0.8–2.5 cm wide, base attenuate, the very base slightly amplexicaul, margins dentate or lobed with triangular lobes to 6 mm long, apex obtuse to acute, glabrous; cauline leaves few, similar to basal leaves but with more sagittate base, widely spaced.. Capitula solitary or up to 5 together in dense clusters; involucre 10–15 mm long; phyllaries green, the outer with dark margins and midrib, ovate to lanceolate, 3–15 mm long, acute or obtuse with a hair-tuft, the outermost tomentose near the base, otherwise glabrous.. Florets many; corolla yellow, the outer purplish beneath, tube narrowly cylindric, 7.5–8 mm long, ligule 4.5–5 mm long, 1–1.5 mm wide.. Achenes dark brown to black, narrowly obovoid or ellipsoid, 3–4 mm long, slightly flattened, ribbed; pappus white, 7–9 mm long.
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