Doug Elliott 
Wild Roots [EPUB ebook] 
A Forager’s Guide to the Edible and Medicinal Roots, Tubers, Corms, and Rhizomes of North America

For more than two decades Doug Elliot has wandered the fields, forests, and marshlands of North America gathering roots and herbs, and plant lore. A labor of love, Wild Roots is filled with practical information, extraordinary drawings and lively commentary, and offers a wealth of information about the roots, rhizomes, and tubers of North America.