Poisonous Plants of North Carolina
A list of poisonous plants native to North Carolina, USA.
The USDA PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.
Plants for a Future
A plant database with a strong emphasis is on growing perennial plants with some self-seeding annuals.
Databases on toxicology, hazardous chemicals, environmental health, and toxic releases.