Catkin-Bearing Plants of British ColumbiaPaperback, 15 June 2006

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 species--and many subspecies and varieties--each accompanied by a detailed line drawing and a distribution map. The book also includes diagnostic keys to the families, genera and species.