"The scope of this book is biological rather than political," writes author Glen Blouin. "It is neither a Native Trees of Canada , nor a Native Trees of the United States . Trees are apolitical characters. They do not recognize international boundaries. They grow where they are comfortable, where the climate and soils suit them." This one-of-a-kind book is certainly an excellent guide to identifying the almost fifty major tree species east of the Rockies by their components (size, wood, bark, leaf, flower, fruit, twig, etc.), but it goes far beyond such basic details. It also