By: Ruth Ashton Nelson (Author), Roger L Williams (Author)
460 pages, 8 plates with 72 colour photos; 350 b/w line drawings
A completely revised edition of Williams's previous work with the late Ruth Ashton Nelson, Handbook of Rocky Mountain Plants, this edition uses simple and clear keys to identify more than 350 species of plants found in the Rocky Mountain region from the United States to Canada. Useful in the classroom as well as the field, the new edition also contains seventy-two color plates of popular species in addition to over 350 line drawings.
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Author of over twenty books, Roger L. Williams is Professor Emeritus of History at the University of Wyoming. He is currently writing a book on the early botanical expeditions of the American West. He lives in Laramie, Wyoming.
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