Once covered by wild grasses, America's heartland is by nature a grassland, populated with plants whose ecological importance, practical value, and subtle beauty we are only now beginning to comprehend. Of the 3,000 species of wild plants in Oklahoma, Kansas, and Nebraska, in the heart of the heartland, only two of every ten are grasses, and in some prairies just one or two of these can account for 80 to 90 percent of the ground cover. It is these major wild grasses, the native and the naturalized, that this field guide covers, as well as some not found in such large numbers but nonetheless...