Rhizomes thick and short. Flowering stem about 80-150 cm. Lower stem leaves long petiolate, biternate, 35-65 cm x 25-60 cm, upper stem leaves with short petiole or sessile, smaller. Inflorescence simple, cymose, 30-60 cm long. Flowers greenish-yellow, minute. V - mid spring to late autumn (in St. Petersburg May to late October). Fl - July-September for 3-4 weeks. Fr - October. P - by division or seed. Shade-tolerant. Z 4 (3).

Siberia (southeastern regions) and Mongolia. Forests, glades and meadows.