Peterson First Guide To Trees

Plants That Kill: A Natural History of the World's Most Poisonous Plants

Introductory Horticulture

Garden: Exploring the Horticultural World

The Ecology of Plants

Herbal Formularies for Health Professionals, Volume 1: Digestion and Elimination, including the Gastrointestinal System, Liver and Gallbladder, Urinary System, and the Skin

How to Feed the World

The Plant Messiah: Adventures in Search of the World's Rarest Species

Most Delicious Poison: The Story of Nature's Toxins―From Spices to Vices

Southwest Foraging: 117 Wild and Flavorful Edibles from Barrel Cactus to Wild Oregano (Regional Foraging Series)