Herbs, perennial, 150-180 cm tall, sparsely pubescent and tomentose. Lower and middle stem leaves: petiole 3-4 cm; leaf blade oblong or ovate, 14-17 × 8-11 cm, abaxially densely gray arachnoid tomentose, adaxially densely or sparsely glandular pubescent, 2(or 3)-pinnatisect; segments 5 or 6 pairs, elliptic or oblong, 4-7 × 3-6 cm; lobules 4-6 pairs, margin 5-or 6-toothed; rachis winged. Uppermost leaves and leaflike bracts 1-or 2-pinnatisect, serrate. Synflorescence a broad panicle. Involucre ovoid, 1-1.5 mm in diam.; phyllaries glandular pubescent and sparsely eglandular deciduous puberulent. Marginal female florets 2 or 3. Disk florets 3-5, bisexual. Achenes obovoid. Fl. and fr. Aug-Nov.
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