A database of 1,100 vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.
Online system for sharing free, full-text publications by scientists in the U.S. Forest Service. Included in Treesearch are scholarly works published by the agency as well as those published by others, including papers appearing in journals, conference proceedings, or books. All publications appearing in Treesearch are based on peer reviewed research.