HerbMed® - an interactive, electronic herbal database provides hyperlinked access to the scientific data underlying the use of herbs for health. It is an evidence-based information resource for professionals, researchers, and general public.
The Poisonous Plant database provides access to references in the scientific literature (primarily print literature through about 2007) describing studies and reports of the toxic properties and effects of plants and plant parts.
National Center for Complementary and Integrative Health
The mission of the National Center for Complementary and Integrative Health (NCCIH) is to define, through rigorous scientific investigation, the usefulness and safety of complementary and integrative interventions and their roles in improving health and health care.
The PubMed Dietary Supplement subset is designed to limit search results to citations from a broad spectrum of dietary supplement literature including vitamin, mineral, phytochemical, ergogenic, botanical, and herbal supplements in human nutrition and animal models.
Medline Plus: Complementary and Integrative Medicine