Trees of Ottawa
A photographic index of tree species that grow in Ottawa, Ontario, Canada.
Tree Atlas of the Panama Canal Watershed
Species accounts with images and maps, arranged by scientific name, tanomomy, and common name. In English and Spanish.
About.com: Top 100 Trees
Find information on more than 100 trees in North America
Trees and Shrubs of Ontario
Designed to assist those interested in learning some of the common trees and shrubs found in the province.
Conifers in the Pacific Northwest
A site that covers common conifers only. Uses an interactive web based dichotomous key.
Trees of Ilalo
Photographic guide to the trees of Ilalo, a mountain in the inter-Andean Valley near Quito, Ecuador.
Catalog of the Woody Plants of Oklahoma
Descriptions, images, and range maps.
British Trees
Guide to the native trees of Britain, plus links to other web resources on forestry and conservation of British Native trees, including forest conservation organizations.
Common Trees of Pennsylvania
Guide to common trees with laymans descriptions of each tree, and a simple key to start with. Line drawings of leaves and fruit.
Trees, Shrubs, and Woody Vines of Central North Carolina
Photographs and information on over 160 species, identification key, and full species lists for two counties.
Identification of Common Trees of Iowa
An interactive guide to trees, using a simple visual dichotomous key.
Trees of Alabama and the Southeast
Brief text and numerous photos of both native and planted trees. Includes section illustrating terminology with photographs.
Ariadne's Trees and Forests
Glossary of tree-related terms; articles on California trees, hiking, and meditation.
Trees of Eastern North American Forests
Descriptions and images of various trees native to the eastern forests of North America.
Identifying Trees of Michigan
A page on the common trees of Michigan with a key.
Forest Trees of Florida
Descriptions and images of over 70 species.
The Tree Register of the British Isles
Historical, ancient, and biggest trees of Great Britain and Ireland.
Goo's Tree Encyclopedia
Names and illustrations of Japanese trees.
Top Trees UK
Searchable database of notable UK trees. Tree quotes, news, photo galleries, and forums.
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