Herbs, perennial; rhizome woody. Stems erect, 35-80 cm tall, arachnoid and sparsely villous, stipitate glandular, densely so above. Leaves: basal and lower cauline petiole long, 6-20 cm, blade cordate to orbicular or broadly ovate, 6-19.5 × 5-16.5 cm, abaxially densely arachnoid-tomentose, adaxially arachnoid or glabrate, short-stipitate glandular, base cordate or abruptly attenuate, margin shallowly dentate, long-stipitate glandular, teeth obtuse or acute, mucronate, apex obtuse, mucronate; mid and upper cauline sessile, ± decurrent, abruptly smaller, decreasing upward, lanceolate, sometimes ± clasping. Capitula 3-18 in corymbiform synflorescences. Involucre hemispheric, 1.5-2 cm in diam.; phyllaries 3-or 4-seriate, lanceolate, subequal, abaxially sometimes sparsely to ± densely arachnoid, densely long-stipitate glandular, papery, margin long-stipitate glandular, sparsely arachnoid, moderately so apically, that of inner sometimes narrowly scarious, apex long acuminate. Ray florets yellow, lamina narrowly oblong, 9-15 × 1-3 mm, distinctly exceeding involucre; inner tubular 1-or 2-seriate, 2-4 mm, truncate, fimbriate; disk florets yellow, lobes ± glandular. Achenes narrowly oblong, 3-4 mm, strigose, 8-10-ribbed. Pappus of yellowish bristles 3-4 mm, some shorter and thinner, those of disk fewer, thinner. Fl. Jun-Sep.
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