5000-189 Peterson Western Medicinal Plants & Herbs

The most complete guide to medicinal plants of western North America. This resource has some of the world’s best information on nearly 500 species (and it’s the first time much of it is available). It’s designed to be used in the field, and is organized by flower colour for quick identification. Use the index to medical topics to find information on specific ailments, and pay attention to the symbols for poisonous and allergenic plants. More than 530 colour photos.