- Rainforest Remedies: One Hundred Healing Herbs of Belize
- Plants, People, and Culture: The Science of Ethnobotany
- Rodale's 21st-Century Herbal: A Practical Guide for Healthy Living Using Nature's Most Powerful Plants
- Handbook of Poisonous and Injurious Plants
- Plants, People, and Culture: The Science of Ethnobotany