Japan Flora: Radical leaves reniform-orbicular, 6-10 cm. long, 8-10 cm. wide, shallowly and palmately lobed, loosely long-pubescent on upper side, on nerves beneath, and on petioles, the lobes 9-13, ovate to narrowly so, usually again shallowly 3-lobed and loosely toothed, the petioles 8-12 cm. long; scapes 20-35 cm. long, long-pubescent especially on the lower half, longer than the leaves, erect; inflorescence umbellate, terminal, the pedicels minutely glandular-hairy, die bracts oblanceolate, few-toothed; calyx-lobes lanceolate, acuminate, 3-4 nim. long, nearly as long as the tube, glabrous; corolla rose-purple, 15-17 mm. across, the lobes 5, narrowly ovate, obtuse, 5-7 mm, long; anthers 5-6 mm. long, shorter than the style. June. Mountains; Hokkaido (Jozankei).
Cortusa matthioli var. congesta (Miyabe & Tatew.) Ohwi. Leaves more densely pubescent and deeply cordate; flowers rather dense. Hokkaido (Rishiri and Rebun Isis.).
Cortusa matthioli var. yezoensis (Miyabe & Tatew.) H.Hara. Leaves rather densely pubescent and die teeth larger and more acute. Mountains; Hokkaido (Oshima and Ishikari Prov.). The species in the broad sense occurs from Sakhalin, Korea, and n. China to Europe.