This is the first ever field guide to deal with the extraordinarily diverse flora of Colombia, Ecuador and Peru. All families that contain woody, epiphytic or scandent species in this region of northwestern South America are included. The book includes an extensive key to families, accounts for all families with main characteristics, and for most families, listings and descriptions of all genera. These generic listings give number of Neotropical species, and common names where they exist. Most of the woody genera are illustrated. Finally, there is a common names index, and a scientific names index. A key botanical work on a previously poorly covered area.