The WVU Tree Bark Home Page  
   Designed to provide a place to learn about the anatomy and physiology of tree bark, fungal canker diseases that affect tree bark, the wound responses of injured tree bark, and the role of wound responses in the resistance of living tree bark to woun
   http://www.caf.wvu.edu/bark/

University of Alabama in Huntsville Grounds Management Page  
   A resource for Southern gardeners who need information on trees that grow well in their area.
   http://www.uah.edu/admin/Fac/grounds/

Southern African Trees  
   A listing of southern african trees with photos, providing general and cultivation information, concentrating on plants suitable as bonsai, potplants or with edible fruit.
   http://www.africantrees.com/

State and Provincial Trees  
   A list of official state and provincial trees of all 50 U.S. states and 13 Canadian provinces and territories including both common and scientific names and images of official flags.
   http://www.state-tree.com

Arnold Arboretum  
   The Arnold Arboretum is a research and educational institution. It manages a collection of hardy trees, shrubs, and vines located in Boston, Massachusetts and associated herbarium and library collections.
   http://arboretum.harvard.edu/

How to Grow and Maintain Birch Trees  
   Learn how to care for a birch tree, including selecting the correct site and type of birch, watering, fertilizing, mulching, and monitoring for problems.
   http://www.birch-tree.com

Collier Arbor Care  
   Tree, shrub and turf information, IPM practices, insect and disease articles, tree care information, annual garden calendar.
   http://www.collierarbor.com/

How to Plant Trees  
   Gives information on where to use trees and how to plant them correctly.
   http://backyardgardener.com/tree/index.html

Ice Damage On Trees  
   Heavy accumulations of snow and ice can cause major structural damage to trees and shrubs. The damaged limbs should be properly removed. The following links will provide a guide for homeowners seeking to repair damaged plant material.U.of Illinois
   http://www.urbanext.uiuc.edu/icedamage/

TreeHelp.com  
   Source of information regarding tree and shrub care including how-to articles, species profiles, insect and disease information and other features.
   http://www.treehelp.com/

Oak Wilt Treatment and Prevention  
   Specializing in the analysis, prevention and treatment of oak wilt using Alamo fungicide and root trenching. Offers free consultation, cedar clearing, dead tree removal, and replanting services.
   http://www.stopoakwilt.com/

English Oak Trees  
   Natural history of English Oaks (Quercus robur), their life, conservation and woodland restoration. How to obtain acorns from old oak trees by mail order.
   http://www.oldknobbley.com

Staking and Guying Trees  
   Contains information and diagrams.
   http://www.ag.ohio-state.edu/~ohioline/hyg-fact/1000/1141.html

Deciduous Trees and Shrubs With All-Season Interest  
   Contains information and pictures.
   http://www.ag.ohio-state.edu/~ohioline/hyg-fact/1000/1143.html

Better Homes and Gardens: Tree Pictures  
   A collection of American tree pictures.
   http://www.bhg.com/home/Tree-Pictures.html

The Trees of Reed College  
   Offers photographs and descriptions for a variety of trees that can be found on the campus of Reed College in Portland, Oregon. Visitors can identify trees by location or find the location of examples of a certain kind of tree.
   http://web.reed.edu/trees/

Acer palmatum - Japanese Maple  
   Provides a brief summary to the variety, growth, character of Acer palmatum for hardiness zones 5 through 8.
   http://www.msue.msu.edu/msue/imp/modop/00000018.html

Trees of the Pacific Northwest  
   An identification guide to conifers of the Pacific Northwest provided by Oregon State University.
   http://oregonstate.edu/trees/

What Tree Is That?  
   Arbor Day Society's online tree identification site for Eastern/Central and Western USA trees.
   http://www.arborday.org/trees/treeID.html

Flowering Trees  
   Articles on flowering trees used in landscaping, including weeping trees, saucer magnolias, dogwoods and crape myrtles. Each illustrated article spans several pages.
   http://landscaping.about.com/od/floweringtrees/

West Coast Native Tree ID  
   A dichotomous key to identify trees native to the West coast of the United States. Includes photos and information on these trees.
   http://signsofdissent.com/webbedfeet/tree/treebegin.html

Technical Tree Biology Dictionary  
   An extensive alphabetical listing of tree terms - some with just a short definition, others with links to longer articles and photographs.
   http://www.treedictionary.com

The-Tree  
   Resource for a wide range of information about trees and forests: Trees and the environment, British trees, cultivation, tree medicine, news and other features.
   http://www.the-tree.org.uk/

Betula lenta  
   Uses, cultivation and description for this tree, commonly known as cherry birch, sweet birch, or black birch.
   http://www.hort.purdue.edu/newcrop/duke_energy/Betula_lenta.html

Ask An Arborist  
   Professional arborist M.D. Vaden shares photos and tree care articles on this informational site. Also answer questions in a personal forum.
   http://askanarborist.com/