The Bugbane is a species in the genus Cimicifuga (bugbane (Cimicifuga)) which contains 18 species and belongs to the family of the Ranunculaceae (Buttercup Family). Cimicifuga dahurica is native to east Sibiria, Mongolia, China and Japan. Rhizome robust, blackish. Stems to 1 m tall, glabrous or slightly pubescent. Proximal cauline leaves 2 or 3 × ternate, long petiolate; petiole to 17 cm; leaf blade triangular, to 22 cm wide; terminal leaflet broadly rhombic, 5--10 × 3.5--9 cm, 3-parted, margin serrate; lateral leaflets long elliptic-ovate, slightly oblique, abaxially sparsely pubescent at veins, adaxially glabrous. Distal cauline leaves similar to proximal cauline ones, but smaller, shortly petiolate. Inflorescence compound racemose, 7--20-branched; rachis and pedicels gray glandular pubescent; bracts subulate, apex acuminate. Pedicel 2--8 mm. Flowers unisexual. Sepals broadly elliptic to broadly obovate, 3--3.5 mm. Petals forked, 2-parted, with 2 sterile anthers. Filaments filarious, 4--5 mm; anthers ca. 1 mm.