- Poisonous Plants of North Carolina
- A list of poisonous plants native to North Carolina, USA.
- PLANTS
- 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.
- ToxNet
- Databases on toxicology, hazardous chemicals, environmental health, and toxic releases.
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