Peterson Field Guide to Medicinal Plants and Herbs of Eastern and Central North America contains references to 530 medicinal plants and herbs both native and alien growing in the eastern and central United States and Canada. Steven Foster and James A. Duke have used recent advances in the study of medicinal plants and their combined experience of over 100 years to completely update the Peterson Field Guide to Medicinal Plants. The clear and concise text identifies the key traits, habitats, uses, and warnings for each plant and herb. Seven hundred plus images, the organization-by-color system, and simplified warnings make identifying medicinal plants fast and easy. This third edition volume was published in 2014. Readers are cautioned about ingesting any unknown plants.