Perennials, 30–130 cm (taproots stout, caudices branched). Stems 1, erect, branched distally, setulose and sometimes glandular proxi-mally. Leaves mostly cauline; petiolate or sessile; blades broadly oblanceolate to elliptic, 15–30 × 4–6 cm, margins closely toothed (teeth corneous apically and sometimes along margins), apices acute, faces scabrous, ± setulose and stipitate-glandular; (cauline sessile, ovate or elliptic, bases auriculate). Heads 1–8, borne singly or (on racemiform branches) in compound, paniculiform or corymbiform arrays. Calyculi of 10–12, lanceolate to linear, sparsely tomentulous bractlets 3–5 mm. Involucres cylindro-campanulate, 10–15 × 6–12 mm. Phyllaries 12–15, lanceolate, 9–10 mm, (bases strongly thickened, margins green), apices (dark) acute, abaxial faces tomentulose, sometimes with setae, adaxial glabrous. Florets 50–90; corollas yellow, 15–18 mm (sparsely tomentulose). Cypselae brown, fusiform, 5–6 mm, apices narrowed (not beaked), ribs 15–20; pappi white (soft), 5–8 mm. 2n = 8.
