Distribution: Widely distributed throughout Washington on both sides of the Cascades; Alaska to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Bogs, marshes, ponds and lakes in shallow water, from low to middle elevations in the mountains.
Conservation Status: Not of concern
Perennial, glabrous, fleshy herbs from thick, shallow rhizomes, the stems prostrate and the floral branches ascending.
Leaves alternate, all basal, the petioles 10-30 cm. long, with conspicuous sheathing stipules; leaflets 3, short-stalked, elliptic-ovate to elliptic-obovate, 4-12 cm. long, entire to coarsely wavy.
Inflorescence a raceme, the peduncles 5-30 cm. long, the pedicels 5-20 mm. long; calyx 5-6 mm. long, divided nearly to the base, the 5-6 lobes obtuse; corolla tube narrow, about twice as long as the calyx, whitish, the 5-6 lobes purplish tinged, ovate-lanceolate, 5-7 mm. long, pointed, covered with short scales that extend down into the tube; anthers purplish; ovary 1/3 inferior.
Capsule thick-walled, many-seeded.