Herbs, perennial; rhizome thick. Stems solitary, erect, 12-70 cm, simple, ± densely white arachnoid and villous, long-stipitate glandular (notably above), partly glabrescent. Leaves: basal and lowest cauline petiole short, winged, blade ovate to lanceolate, sometimes obovate to oblanceolate, 4-20 × 3-17 cm, abaxially densely lanate to arachnoid, adaxially arachnoid, short-stipitate glandular, base attenuate, decurrent on stem, margin irregularly denticulate to dentate, apex obtuse or rounded, mucronate; mid cauline several, oblong, lanceolate, or ovate, sometimes obovate, apex obtuse or acute; upper cauline gradually reduced, surfaces white arachnoid-lanate or arachnoid, abaxially more densely so, adaxially ± glabrescent. Capitula (1 or)2-14, in corymbiform synflorescences, rarely solitary. Involucre hemispheric, 1.5-3.5 cm; phyllaries 3-or 4-seriate, subequal, herbaceous (inner papery), ovate to lanceolate-ovate, 13-18 × 2-5 mm, sometimes sparsely to densely white arachnoid, densely stipitate glandular, margin villous, long-stipitate glandular, distally moderately arachnoid ciliate, apex long acuminate. Ray florets yellow, oblong, 9-18 × 2-4 mm, distinctly exceeding involucre; inner tubular 2-or 3-seriate, 1.8-3.5 mm, truncate; disk florets yellow, tubular, 4-5.3 mm, lobes glandular. Achenes oblong, 4-4.5 mm, moderately strigose, 10-ribbed (sterile disk ovary glabrous or sparsely strigose distally). Pappus of straw-colored, coarse bristles 4-5 mm, plus some short, thin bristles, those of disk lacking or few and thin. Fl. Apr-Sep.
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