Rhizomatous native perennial legume with lemon-yellow pea-like flowers, blooming May to August. Occurs in moist mountain meadows, woods and along streambanks; up to 11,500 ft. elevation. Persists on seasonally wet soils that dry out in summer heat. Use for restoration, roadsides and wildflower mixes. Toxic to browsing animals; increases on overgrazed sites. Attractive to bumble bees.