This guide covers over 250 major species--by asthetic character, culture requirements, and ecology--and presents essential design information through scale illustrations.
This hefty volume is packed with fact sheets outlining many native plants and how to use them in varied landscapes. The detailed sketches of the plant's form are much more helpful than photographs, as are the identification keys, two-page synopses on many species, location maps (Canada and US), and cultural details.
This is a reference manual and rather pricey. The format is dry and to the point, but sometimes that is exactly what you want. There are many plant lists and charts for selection based on ecological and cultural requirements. Phenological calendars and pollution tolerances are also provided. You may not see fit to own it, but this book is a robust resource that needs to be made available through libraries, conservation districts or organizations of naturalists.