National Audubon Society Field Guides

A portable, comprehensive field guide to over 650 species of trees in the western region of North America —from the National Audubon Society, the go-to reference source for over 18 million nature lovers.

In this must-have companion for any enthusiast’s day pack or home library, nearly 700 species of trees are detailed in beautiful, full-color photographs of leaf shape, bark, flowers, fruit, and fall leaves, accompanied by informative text. Both compact and comprehensive, and featuring a durable vinyl binding, this is the ideal field guide for beginner and advanced tree-peepers alike. 

Note: the Eastern Edition generally covers states east of the Rocky Mountains, while the Western Edition covers the Rocky Mountain range and all the states to the west of it.The author, Elbert L. Little, was Chief Dendrologist of the U.S. Forest Service. After retiring, he served as a Research Associate in the Department of Botany, U.S. National Museum of Natural History, Smithsonian Institution.