Herbs, perennial, 30-50 cm tall, densely gray arachnoid tomentose, later partly glabrescent or sparsely tomentose. Lower stem leaves: petiole 5-8 mm; leaf blade ovate, densely arachnoid pubescent, later sparsely pubescent, 2(or 3)-pectinately pinnatisect; segments 3(or 4) pairs; lobules 10-25 × 0.5-1 mm, serrate or pectinate, obtuse apically. Middle stem leaves 1-or 2-pectinately pinnatisect; segments 2 or 3 pairs; lobules serrate or shortly linear. Upper leaves and leaflike bracts pinnatisect or 3-lobed. Synflorescence a lax, broad conical panicle; branches at ca. 90° to main stem. Involucre oblong or oblong-campanulate, 2-2.5 mm in diam.; phyllaries arachnoid puberulent. Florets 5-8. Achenes obovoid or oblong-ovoid. Fl. and fr. Aug-Oct.
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