Herbs, erect, 3-5(-7) × 0.5-1 dm, tomentose. Stems: caudex absent; aerial flowering stems erect, stout, solid, not fistulose, arising directly from a taproot, 2-4 dm, tomentose. Leaves basal, not in rosettes; petiole 5-15 cm, tomentose to floccose; blade oblong to ovate, (5-)10-15 × 4-8 cm, densely brownish-white-tomentose abaxially, floccose or glabrous and green adaxially, margins entire, plane. Inflorescences compound-umbellate, 10-40(-50) × 8-30(-50) cm; branches tomentose; bracts 3-6, leaflike at proximal node, 1-10(-12) × 0.5-4(-5) cm, often scalelike distally. Involucres 1 per node, campanulate, 3-5(-7) × (4-)5-8 mm, tomentose; teeth 5-7, erect or slightly spreading, 0.8-1.5 mm. Flowers 3-7 mm, including 1-1.5 mm stipelike base; perianth bright yellow, densely pubescent abaxially; tepals dimorphic, those of outer whorl broadly lanceolate to elliptic, 3-6 × 1.5-3 mm, those of inner whorl elliptic to fan-shaped, 4-7 × 2.5-4 mm; stamens exserted, 3-5(-7) mm; filaments pilose proximally. Achenes light brown to brown, 4-6 mm, glabrous except for sparsely pubescent beak.
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Tomentose perennial 3–5 dm, erect from a thick, woody root, branched above; lvs glabrescent above, the basal ones long-petioled, with ovate or ovate-oblong blade 5–15 × 2–7 cm, the cauline ones in whorls of 3–5, short-petiolate, oval or oblong, progressively reduced; infl broad and rather flat-topped, with many invols, these 6–8 mm, lobed to the middle; perianth tapering to a shortly stipitate base; tep bright yellow, broad, obtuse, 3 mm, the outer glabrous, the inner inconspicuously hairy below; filaments villous toward the base. Shale-barrens; w. Va. and adj. W.Va. July, Aug
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