National Audubon Society Field Guide to Wildflowers: Western Region
Here's what other sites are saying:
Fully revised field guide, with 941 full-color pictures, brings a new level of beauty, accuracy and usefulness to wildflower enthusiasts. Softcover; 862 pages; photos and illustrations. National Audubon Society; copyright 2001. Full-color photographs show flowers close-up and in their natural surroundings. A total of 654 species are covered in detail, plus notes on hundreds more. Photography organized by flower color and shape, with a visual key to make identification simple and accurate. Complete glossary of terms and species index.