Cool season, native perennial grasslike with aggressive black rhizomes. Occurs in seasonally moist wetland areas and prairies, from low elevations up to 10,000 ft. Adapted to fine, medium and coarse alkaline and serpentine soils. Highly palatable to livestock and wildlife and tolerant of grazing and trampling. Useful for riparian and wetland reclamation. Occasionally used as a low maintenance lawn, requiring little mowing and irrigation and able to withstand foot traffic.