provides keys, descriptions, and illustrations to identify 73 important range grasses of the American southwest using only vegetative features. An overall line-drawing of each grass plus a detailed sketch of each species' diagnostic ligule and collar area provides a straightforward method to identify grasses early in the season or when not in flower. Illustrations of various grass features, a glossary, index, and distribution map are also included, making the book a valuable field guide for students, ranchers, researchers, and others working in southern California, Arizona, New Mexico, or western Texas.