A Peterson Field Guide to Western Medicinal Plants and HerbsThe most complete guide ever written on the medicinal plants of western North America. Peterson Field Guide to Western Medicinal Plants and Herbs offers the best information in the world on the current popular and traditional uses of the nearly 500 species covered, much of it available for the first time. More than 530 color photographs illustrate the plants and their flowers, leaves, and fruits. The descriptive text combines scientific,