Subshrubs, 100-130(-200) cm tall, yellowish pubescent. Lower and middle stem leaves: petiole 1-3.5 cm; leaf blade ovate or broadly ovate, 6-22 × 5.5-18 cm, abaxially densely arachnoid pubescent, adaxially sparsely pubescent or glabrescent, gland-dotted, 1(or 2)-pinnatipartite; segments 2 or 3 pairs, elliptic or narrowly elliptic, rarely elliptic-lanceolate, 4-13 × 2-4 cm, rachis winged, 1-5-serrate. Uppermost leaves pinnatipartite; leaflike bracts 3-5-lobed or entire; lobes or entire bracts lanceolate or linear-lanceolate. Synflorescence a broad panicle. Involucre ovoid or ovoid-campanulate, 3.5-5 mm in diam.; phyllaries arachnoid pubescent, glabrescent. Marginal female florets 8-13. Disk florets 13-26, bisexual. Achenes oblong or oblong-ovoid. Fl. and fr. Aug-Oct.
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