This book is the most comprehensive work on alders, birches, oaks, poplars, willows and other catkin-bearing plants in British Columbia. Dr. T. C. Brayshaw describes all 67 speciesand many subspecies and varietieseach accompanied by a detailed line drawing and a distribution map. The book also includes diagnostic keys to the families, genera and species. | Catkin-Bearing Plants of British Columbia by T. Christopher Brayshaw, Paperback | Indigo Chapters