Databases for identifying plants and animals

• Open Directory's Flora and Fauna Section
• Flora of North America
• University of Illinios' Biological Information Browsing Environment (BIBE)
• Missouri Botanical Garden's Vascular Tropicos
• Ohio University's Plantfacts
• The CalFlora Species Database
• USDA Plants Database
• Forest Inventory and Analysis Data Base Retrieval System
• Illinois Plants Web Page
• SimForest Forest Simulator Software and Curriculum/Inquiry Units