Poterium sitchense (C. A. Meyer) S. Watson; Sanguisorba canadensis Torrey & A. Gray subsp. latifolia (Hooker) Calder; S. canadensis var. latifolia Hooker; S. canadensis var. sitchensis (C. A. Meyer) Koidzumi; S. latifolia (Hooker) Coville; S. sitchensis C. A. Meyer; S. stipulata var. latifolia (Hooker) H. Hara.

Herbs perennial, 35–80 cm tall. Rootstock robust, deep, long. Stems glabrous. Radical leaves: stipules yellow-brown, membranous, glabrous; petiole angular, glabrous; leaf blade with 4–6 pairs of leaflets; leaflets petiolulate, green on both surfaces, abaxially more deeply so, elliptic or ovate-elliptic, both surfaces glabrous, base cordate to deeply so, rarely slightly so, margin coarsely acutely incised serrate, apex rounded; cauline leaves 2–4; stipules green, ovate, herbaceous, margin incised serrate; leaf blade resembling that of radical leaves but leaflets fewer higher up stem. Inflorescence erect, spicate; peduncle glabrous; bracts narrowly fasciated, nearly equaling sepals, glabrous or abaxially pilose. Sepals 4, elliptic-ovate, glabrous. Stamens 4; filaments compressed-dilated from middle to apex, broadest at apex, 2–3 × as long as sepal, nearly as broad as anther. Fruiting hypanthium pilose; sepals persistent. Fl. and fr. Jul–Sep.

This species is used medicinally.

Thinned forests, forest margins, mountains, ravines, marshy places; 1400--2300 m. Jilin, Liaoning [Japan, Korea, Russia; North America].