The Fourth Edition features many new illustrations and incorporates the June 2012 Wetland Indicator Status classification of the National Wetland Plant List; this replaces earlier lists developed by the US Fish and Wildlife Service, and is the standard for use in wetland delineation studies. Definitions for the indicators have been revised, and are based on regions, 4 of which are present in the Great Lakes area: Midwest, Northcentral and Northeast, Eastern Mountains and Piedmont, and Great Plains. The Flora's thoroughness and ease-of-use have made it a favorite reference with botanists, natural resource managers, environmental consultants, students and educators.
Contents- Complete coverage of aquatic and wetland plants of the Upper Midwest - Minnesota, Wisconsin, Michigan, Iowa, Illinois, Indiana and Ohio.