This illustrated guide to North American wild medicinals has been a nature classic for over thirty years. In this new edition, David K. Foster revises Bradford Angier's invaluable handbook, updating the taxonomy and adding more than a dozen species, including the purple coneflower, popularly known as echinacea, as well as ephedra, jewelweed, goldenseal, and more. Scientific information for a general audience and full-color illustrations combine with...