Erect herbs to 1.5 m high, commonly leafier in lower 1/3. Tap or primary roots well-developed; secondary roots fine. Stems hispid, sparsely appressed-cottony or ± glabrous. Leaves 3–13 cm long, with l:w ratio c. 2–30, undivided or lobate, with 1–5 triangular projections per side; base with auricles small or moderately developed; margin with scattered teeth or nearly entire; upper surface sparsely to moderately hispid or glabrous; lower surface hispid, cobwebby or somewhat woolly, sometimes glabrous except for midrib, often purple. Capitula usually numerous per stem; calycular bracteoles 6–10, 1–2.5 mm long; peduncle and calyculus often sparsely to moderately cobwebby at anthesis; involucre (4–) 5–8 mm long, 2–2.8 mm diam.; bracts predominantly 12–14, ± glabrous. Florets 30–50. Achenes narrowly obloid, 1.5–2.5 mm long, mid to dark brown, with papillose hairs in broad bands, rarely glabrous; l:w ratio of hairs c. 3. Pappus 5–7 mm long.
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