Prairie Plants of Illinois is an easy-to-use guide for identifying over 100 of the most common grasses, wildflowers, and shrubs found on the prairies of Illinois and in the surrounding region. By using the simple set of keys, identifying an unknown prairie plant will be relatively straightforward. In addition, color photographs, line drawings, and an illustrated glossary supplement the text. Maps show the county distribution of each species both in Illinois and across the central United States.