National Audubon Society Field Guide to North American Trees: Western Region

The first all-photographic field guide. All 855 identification pictures are full-color photographs of significant details of virtually all native trees and many cultivated species as you see them in their natural habitat. The first field guide to be organized with a visual key. Arrangement by leaf shape, flowers, cones and fruit--plus drawings of tree silhouettes plus drawings of tree silhouettes as they appear in winter--makes identification simple at any time of year. SC, 639 pages.