Smithsonian Trees of North AmericaAn indispensable illustrated source of information for hundreds of species of North American trees This authoritative reference on native and non native trees of North America, by Smithsonian veteran W. John Kress, provides an unprecedented appraisal of more than 325 common species. More than a field guide, it includes * over 300 range maps and 3,000 photographs of leaves, flowers, fruits, seeds, and bark; * an in depth introduction to the biology of