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http://www.invasive.org/
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USDA provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.
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Source for authoritative conservation information on more than 50,000 plants, animals, and ecological communities of the United States and Canada.
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Includes an encyclopedia of flowers and plants indexed by botanical and common name as well as links to associations and societies.
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Provides free on-line tools to identify species as well as ways to teach and study nature's wonders, report findings, build maps, process images, and contribute to and learn from Discover Life's species encyclopedia.
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Comprehensive resource for science-based information about the environment. ... About the EarthPortal. Community of Scholars. EoE: Educators' Feedback ...
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eNature: Your Guide to America's Wildlife -- Comprehensive, Accurate, and Local, now including the ... ©2007 eNature.comSite Map User Settings About Us/Contact ...
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Site for K-12 teachers and students looking for international and U.S. databases, research and policy papers, factsheets, lesson plans, and activities on the ...
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