Free Food and Medicine: Worldwide Edible Plant Guide

The Wild Food Trailguide
By Alan Hall
Describes the appearance, habitats, and culinary uses of numerous North American wild plants and identifies common poisonous plants.
Edible Survival Plants of the Rocky Mountains: A Folding Pocket Guide to Familiar Species
By Jason Schwartz
This beautifully illustrated guide identifies the most familiar plants and includes information on how to harvest and prepare their edible parts.
Plants Feed Me
By Lizzy Rockwell
"Watermelons are fruits. Cabbages are leaves. Walnuts are seeds. Carrots are roots. People eat many parts of plants. Even flowers!--
Edible Medicinal and Non-Medicinal Plants
By T K Lim
The contents include taxonomies, color illustrations, and pharmacological data. This book continues as volume 6 of a multi-compendium on Edible Medicinal and Non-Medicinal Plants.
A Taste of Nature: Edible Plants of the Southwest and How to Prepare Them
By Kahanah Farnsworth
This is not only a complete guide to range, habitat, nutritional and medicinal facts, and identification of common wild plants; it also has useful information about how to prepare them.
Edible: The Illustrated Guide to the World's Food Plants
By Barbara Santich, Limited, Geoff Bryant
This book invites readers on a sumptuously illustrated walk through the world garden to discover the story of some 250 food plants from field to table.