Actaea heracleifolia (Komarov) J. Compton.

Rhizome robust, blackish. Stems ca. 1 m tall or more, glabrous. Proximal cauline leaves 2 × ternate, glabrous, long petiolate; petiole to 20 cm, glabrous; leaf blade slightly triangular, to 20 cm wide; terminal leaflet obovate to obovate-elliptic, 6--12 × 4--9 cm, base rounded to subcordate, margin dentate, apex 3-lobed; lateral leaflets usually obliquely ovate, smaller than terminal ones, leathery, glabrous, or abaxially sparsely white pubescent at veins. Distal cauline leaves usually ternate. Inflorescence racemose, 2--9-branched; rachis and pedicels gray glandular pubescent and hairy; bracts subulate, ca. 1 mm. Pedicel 2--4 mm. Flowers small, ca. 5 mm in diam. Sepals yellowish white, obovate-orbicular to broadly elliptic, 3--4 × 2.5--3 mm. Petals elliptic, 2.5--4 × 1.6--2 mm, apex white, submembranous, usually entire. Filaments filarious, 3--6 mm; anthers ellipsoid, ca. 0.8 mm. Carpels 3--5, shortly stalked, glabrous. Follicles 5--6 × 3--4 mm, with slender stalk ca. 1 mm. Seeds usually 2, ca. 3 mm, with membranous scaly wings all around. Fl. Aug--Sep, fr. Sep--Oct.

Scrub, grassy slopes; sea level to 1000 m. Heilongjiang, Jilin, Liaoning, Nei Mongol [Korea, Russia (Far East)].