Provides information on all of the herbaceous species - a total of 1,568-recorded in Indiana (except grasses, sedges, and rushes) and includes over 640 color photographs, one for every group of visually similar species. Photographs containing more than one species are accompanied by helpful explanations and numerous drawings of the characteristics that separate each of the individual species. Each species entry includes the scientific name, common name, habitats, general distribution in the state, months of blooming, size of the plants and the flowers or inflorescence, and a brief additional description of the plant. Species are grouped into families, which are arranged so that the most closely related and usually visually similar are in proximity. To assist the reader in identifying unknown wildflowers, a "Flower Finder" section depicts species based on the number of colored parts of the flower and also provides small drawings as visual guides.