Distribution: Widely distributed throughout much of Washington; Alaska east across Canada to the Atlantic Coast, south to California and east across the northern half of the U.S.
Habitat: Bogs, wet meadows and lake margins, sea level to subalpine.
Conservation Status: Not of concern
Herbaceous perennial from strong rhizomes, with floating or prostrate, reddish stems up to 1 m. long, glabrous below, becoming hairy and purplish-glandular above. The tips of floating stems often turn upright.
Leaves alternate, pinnate, the leaflets 5-7, mostly glabrous and light green on the upper surface, paler, glaucous, and appressed-silky on the lower, obovate to narrowly elliptic-oblong, 3-6 cm. long, serrate.
Flowers several in open cymes, deep wine-red; tubular part of the calyx bowl-shaped, 5-8 mm. broad; calyx lobes 5, greenish-purple, glandular, ovate-lanceolate, pointed, spreading, 7-11 mm. long, alternating with shorter and narrower bracteoles; petals 5, ovate-lanceolate to elliptic, pointed, about equal to the bracteoles; stamens about 25; pistils many; style reddish, smooth, slender, uniform in diameter, inserted on the side of the ovary, 1.5-2 mm. long.
Achenes broadly ovate, brownish-purple, plump, smooth, 1.5 mm. long.