It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Maintained by the USDA National Resources Conservation Service, the PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.
The Tree of Life Web Project is a collaborative effort of biologists and nature enthusiasts from around the world. The project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history.
Below are some links to sites that provide guidance when evaluating websites.