The Tree Register of the British Isles - Historical, ancient, and biggest trees of Great Britain and Ireland. Conifers in the Pacific Northwest - A site that covers common conifers only. Uses an interactive web based dichotomous key. About.com: Top 100 Trees - Find information on more than 100 trees in North America Catalog of the Woody Plants of Oklahoma - Descriptions, images, and range maps. Ariadne's Trees and Forests - Glossary of tree-related terms; articles on California trees, hiking, and meditation. Goo's Tree Encyclopedia - Names and illustrations of Japanese trees. 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. SelecTree for California - A tree database for California. Includes non native trees. Trees of London - Tree identification using examples of trees located in London. Illustrated with photographs of trees, bark, flowers, fruit and leaves. Trees, Shrubs, and Woody Vines of North Carolina - Photographs and information on over 450 species, identification key, and full species list for the state. 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.