Herbs, perennial, 50-120 cm tall, glabrescent. Lowermost and middle stem leaves: petiole 2-4 cm; leaf blade ovate-oblong or ovate, 7-15 × 5-10 cm. Lower leaves 3-pinnatisect; middle leaves 2-or 3-pinnatisect; segments 4 or 5 pairs, ovate-oblong or oblong, 3-6 × 2-3 cm; lobules 2 or 3 pairs, lacerate; rachis narrowly winged. Uppermost leaves and leaflike bracts 1-or 2-pinnatisect or-partite. Capitula in somewhat broad panicles. Involucre ovoid, 1-1.5 mm in diam. Marginal female florets 2-4. Disk florets 3-8, bisexual. Achene obovoid. Fl. and fr. Aug-Nov.
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