Japan Flora: Stems rather stout, creeping and branching below, 30-60 cm. long, with appressed silky pubescence above; leaflets 5-7 (rarely 3)^ nearly sessile, narrowly oblong, 4-7 cm. long, 12-30 mm. wide, green above, whitish beneath, with appressed silky pubescence on both sides or glabrate on upper side; flowers 15-20 mm. across; calyx-segments narrowly ovate, 7-15 mm. long, long-acuminate, pubescent; bracts of caliculus small; petals ovate, purplish, shorter than the calyx-segments; re­ceptacles pilose. June-Aug. Wet places and shallow water around ponds and along ditches in lowlands and on moun­tains.

Hokkaido, Honshu (centr. and n. distr.). Cold regions of the N. Hemisphere.