Herbs, perennial, 40-100 cm tall. Rhizomes procumbent, reddish brown. Stems erect, green or reddish purple, few branched or apically synflorescence branched, sparsely puberulent, more densely on synflorescences and peduncles. Median stem leaves large, 3-sect or 3-partite; petiole 0.7-1 cm; terminal lobe large, narrowly elliptic, elliptic-lanceolate, or oblanceolate, 5-10 × 1.5-2.5 cm, apex acuminate; lateral lobes identical to terminal lobe but smaller, pinnately veined; margin coarsely toothed or irregularly finely toothed; lower stem leaves gradually smaller; radical leaves withered by anthesis. Capitula numerous in apical compound corymbs; synflorescence 3-6(-10) cm in diam. Involucre campanulate, 6-7 cm; phyllaries 2-or 3-seriate, imbricate, outer phyllaries short, ovate-lanceolate; median and inner phyllaries gradually longer, narrowly elliptic, ca. 7 mm; all phyllaries purple-red, without hairs and glands, apex obtuse; corollas white or reddish, ca. 5 mm, eglandular. Achenes black-brown, elliptic, 3-4 mm, 5-angled, glabrous and eglandular; pappus white, ca. 5 mm. Fl. and fr. Jul-Nov. 2n = 40.
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A shrub. It grows 1-1.5 m tall and spreads 30 cm-1 m wide. It forms clumps and keeps growing from year to year. The leaves are opposite and divided. They have sharp teeth. The flowers are white and in groups.
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