Plant 20-30 cm. Rhizome creeping. Leaves broadly ovate, long-petiolate (up to 25 cm long). Flowers violet, large, 2.5-3.5 cm diam. V - early spring to late autumn, some leaves overwinter. Fl - May-June. Fr - July. P - by seed and easily self-sown. Can grow in a moist partially shaded site. Z 4 (3).

Siberia (eastern regions), Far East (Kamchatka, Kuril Islands, Sakhalin), Japan and Alaska. In meadows, in moist places.