Plants 20–75 cm. Stems 2–5, erect or strongly ascending, brownish to red-tinged, bases often curved, sparsely to moderately leafy, usually glabrous, sometimes sparsely tomentulose or villous, eglandular. Leaves: basal (tufted) petiolate, blades lanceolate or oblanceolate to elliptic, 50–200(–300) × 4–30 mm, margins spinulose-serrate to entire or undulate, ciliate, apices acute, sometimes recurved; cauline sessile, blades lanceolate, 10–40 × 2–4 mm, reduced distally; faces usually glabrous, sometimes villous. Heads (1–)3–15+ in spiciform, racemiform, or narrowly paniculiform arrays. Peduncles 0–2 cm. Involucres hemispheric to campanulate, 5–15 × 5–18 mm. Phyllaries in 4–5 series, lanceolate to oblanceolate or oblong, 6–13 mm, strongly unequal, margins sometimes ciliate, apices green, obtuse or acute, sometimes recurved, faces glabrous, sparsely tomentulose, or densely villous. Ray florets 7–28; corollas 5–12 mm. Disc florets 20–65; corollas 5–8 mm. Cypselae subcylindric, 2.5–5.5 mm, 4-angled, faces often sericeous or nearly glabrous; pappi tawny, 6.5–8.5 mm.
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