Japan Flora: Stems 30-70 cm. long, coarsely pilose with re­cused spreading hairs; lower cauline leaves petiolate, 5-angled, rounded, slightly depressed, 5-10 cm. wide, deeply 5-lobed to below the middle, the lobes rhombic-obovate, irregularly incised, subacute to acute, appressed short-pilose on upper side, with spreading hairs beneath especially on nerves; stipules broad, connate, scarious, brown; flowers rose-purple, 2.5-3 cm. across, the pedicels with short retrorsely curved hairs on upper part; sepals loosely long-pilose; free portion of styles 5-6 mm. long.                July-Sept. Honshu (Suruga Prov. and Chugoku Distr.), Shikoku, Kyushu; rather variable.

var. kaimontanum (Honda) Honda & Hara. Less pubescent; lobes of leaves acute; sepals without long hairs.  Honshu (Kai Prov.)

var. yamatense Hara. Leaves deeply lobed and incised. Mountains; Honshu (Yamato Prov.)

var. yoshiianum (Koidz.) H.Hara. Dwarf phase, 15-30 cm. high; leaves more densely pilose, 1-3 cm. across; pedicels nearly glabrous; flowers 2-2.5 cm. across. High mountains of Yakushima in Kyushu.