Rick Cech

Weighing in at more than three pounds, this book is not intended to be a field guide that you can tuck in your back pocket. But it is easy to use if not to carry, and its girth allows it to be wonderfully comprehensive: 234 species each get their own big page, complete with range maps, color photographs and in-for-mation on preferred plants.

Just describes the most common species. Paperback 448 pp.