Other Sites of Interest

• Association for Biodiversity Information
• Overstory, an on-line journal of Agroforestry
• The Champion Tree Project
• Botanical Checklist of North America
• Endangered and Threatened Species
• GardenWeb
• The Historic Trees Project
• A World Community of Old Trees An Eco-Art Project
• Index Herbariorum
• Integrated Taxonomic Information System
• Internet Directory for Botany
• Nearctica
• Plant Amnesty
• Plant World
• Plants of Horticulture (searchable database at Ohio State University)
• Society for Ecological Restoration
• Treeguide: The Natural History of Trees
• USDA Plant Hardiness Zone Map
• USDA Forest Service Research & Development
• United States National Germplasm System
• University of California Integrated Hardwood Range Management Program
• Wild Ones

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