Deciduous azalea hybrids selected from a native population near Lake Keowee, South Carolina have been determined to be triploids using flow cytometry by a team lead by Dr. Ranney.
Summary of Ploidy Levels
Triploid Deciduous azalea hybrids from Lake Keowee population
Source: Lake Keowee population
Source: Clarence Towe
John and Sally Perkins