Broad-Leaved Plants 8,199
Conifers 513
Cycads 469
By Region 20
Tree Identification 15
| | Agriculture and Forestry - Business 8,955
Trees - Plants, Gardening, Home 65
Forestry - Agriculture, Science 270
Forest - Ecosystems, Ecology, Biology, Science 59
Trees - Plants, Conservation, Biodiversity, Environment, Science 2
Forests and Rainforests - Environment, Science 70
 The American WoodsThe American Woods
 Wood sections of 350 North American trees from the 14-volume book The American Woods, published between 1888 and 1910 by Romeyn Beck Hough.
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The Ancient Bristlecone PineThe Ancient Bristlecone Pine
 Dedicated to the oldest-known living tree, growing in the White Mountains in east central California. Information about the location, dendrochronology, photo gallery, and bibliography.
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DendrochronologyDendrochronology
 Information from Wikipedia on tree-ring dating which is a scientific method of dating based on the analysis of tree-ring growth patterns.
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DendrologyDendrology
 Information from Wikipedia on the study of woody plants including trees, shrubs and lianas.
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Forest Biology and Dendrology at Virginia TechForest Biology and Dendrology at Virginia Tech
 Information about courses, trees, and forest biology. Includes fact sheets on over 450 species of trees.
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International Dendrological Research InstituteInternational Dendrological Research Institute
 Nonprofit organization dedicated to documenting the woody flora worldwide.
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Silvics of North AmericaSilvics of North America
 Compendium of research papers describing the characteristics and distribution of important broadleaf and coniferous forest trees of the United States and Canada, plus many of the native and naturalized trees of Mexico, the Caribbean Islands, and Hawaii. Compiled over several decades by USDA Forest Service scientists.
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Tree MattersTree Matters
 Site for The Dendrologist, a quarterly magazine. Also contains tree tips and a record of the dates of upcoming dendrology events in the UK.
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Tree Root Architecture, Root Dynamics and Rhizosphere ProcessesTree Root Architecture, Root Dynamics and Rhizosphere Processes
 Information on research into tree root architecture, tree root growth and tree stability.
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