Prairie bush clover is federally protected under the Endangered Species Act as a threatened species. It is a plant in the pea family and is native to tallgrass prairies of four Midwestern states: Iowa, Illinois, Minnesota and Wisconsin. It has a clover-like leaf comprised of three leaflets
about an inch long and a quarter inch wide. Flowering plants are generally between nine and
eighteen inches tall with the flowers loosely arranged on an open spike. The pale pink or cream colored flowers bloom in mid-July and the entire plant has a grayish-silver sheen.