Open directory - By Region - Dendrology - Botany - Biology

About.com: Top 100 Trees - Find information on more than 100 trees in North America

Ariadne's Trees and Forests - Glossary of tree-related terms; articles on California trees, hiking, and meditation.

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.

Catalog of the Woody Plants of Oklahoma - Descriptions, images, and range maps.

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.

Conifers in the Pacific Northwest - A site that covers common conifers only. Uses an interactive web based dichotomous key.

Forest Trees of Florida - Descriptions and images of over 70 species.

Goo's Tree Encyclopedia - Names and illustrations of Japanese trees.

Identification of Common Trees of Iowa - An interactive guide to trees, using a simple visual dichotomous key.

Identify America’s Common Trees - Provides quick identification of 100 common conifer and evergreen trees of the North American forest using a tree finder key, photographs and other features.

Identifying Trees of Michigan - A page on the common trees of Michigan with a key.

SelecTree for California - A tree database for California. Includes non native trees.

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.

The Tree Register of the British Isles - Historical, ancient, and biggest trees of Great Britain and Ireland.

Trees and Shrubs of Ontario - Designed to assist those interested in learning some of the common trees and shrubs found in the province.

Trees of Alabama and the Southeast - Brief text and numerous photos of both native and planted trees. Includes section illustrating terminology with photographs.

Trees of Ilalo - Photographic guide to the trees of Ilalo, a mountain in the inter-Andean Valley near Quito, Ecuador.

Trees of London - Tree identification using examples of trees located in London. Illustrated with photographs of trees, bark, flowers, fruit and leaves.

Trees of Ottawa - A photographic index of tree species that grow in Ottawa, Ontario, Canada.

Trees, Shrubs, and Woody Vines of North Carolina - Photographs and information on over 400 species, identification key, and full species list for the state.

By_Region

By_Region