Herbs ca. 80 cm tall, perennial. Stem solitary, erect, apically branched and sparsely glandular hairy. Middle stem leaves with petiole 2.5-4 cm, very narrowly winged; leaf blade ovate to elliptic, 9-11 × 6-7 cm, pinnatisect to subpinnatisect, base ± truncate, margin dentate; lateral lobes 2 or 3 pairs, lanceolate, apex acute, acuminate, or obtuse; upper and middle lobes 2-4.5 × 1-1.5 cm; lower lobes smaller; terminal lobe elliptic-lanceolate, ca. 4 × 1.5 cm. Upper stem leaves similar to middle stem leaves but smaller; uppermost leaves linear. Synflorescence narrowly paniculiform, with numerous capitula. Capitula with usually 15-20 florets. Involucre cylindric to campanulate, ca. 1.5 × 0.5 cm. Phyllaries with an obtuse to acute apex; outer phyllaries lanceolate, hispid. Florets purplish. Achene ca. 6 mm; body pale brown, ellipsoid, compressed, lateral ribs broadened, apex contracted into a ca. 2 mm beak. Pappus double, outer hairs inconspicuous, bristles ca. 8 mm. Fl. and fr. Aug-Oct.
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