158 trees and shrubs are grouped and color coded for easy location in the book. Also features a 5-page photo key to all the shrubs. Includes 260 color photos and 130 illustrations, distribution maps for tree species, native uses of plants, edible berries and notes from such explorer-botanists as Lewis and Clark.This book is a companion to Chess Lyons' earlier book, Wildflowers of Washington (Lone Pine, 1997), The author's non-academic approach brings the botanical information into a pleasantly readable text with photographs.