Big Sagebrush blooms in late summer producing dense clusters of tiny yellow or cream-colored flowers. One mature plant may produce up to one million tiny, black seeds. Big Sagebrush is an important winter browse plant for a number of wildlife species, including pronghorn, mule deer, domestic livestock, sage grouse and many small mammals. More than seventy percent of the sage grouse's diet consists of sagebrush leaves and buds. Both Navajos and Hopis made medicine from the plant to cure stomach-ache. The Navajos also used it to cure colds and headaches.