Japan Flora: Rhizomes stout and short; radical leaves 1 or 2, long-petioled, orbicular, peltate, cordate, 1G-25 cm. long and as wide, shallowly palmate-lobed, toothed, obsoletely incised, glabrous or slightly glandular-pilosulous, lustrous above; stems 30-60 cm. long, rather stout, 2- to 3-leaved, the cauline leaves smaller, short-petioled or subsessile; inflorescence several-flowered, the bracts small; calyx-lobes narrowly deltoid, erect, acute, 4-5 mm. long; petals creamy white, broadly oblanceolate, 10-12 mm. long, nearly acute, ascending, few-toothed toward tip; capsules 10-13 mm. long, broadly ovoid, enclosed within the calyx-tube. May-July. Woods in mountains;

Honshu (n. and centr. distr.); rare.