Cultivars and Names of Lagerstroemia
"In addition to breeding, evaluating, and selecting new and improved cultivars of crapemyrtles, the National Arboretum is also responsible for serving as the International Cultivar Registration Authority (ICRA) for the genus Lagerstroemia. The ICRA serves several important roles in promoting stability in nomenclature, including registering and publishing cultivar names and maintaining records of historical and current cultivar names, origins, and descriptions.
"The last version of the Lagerstroemia (crapemyrtle) checklist was published in 1978, which is the same year that the first two hybrid crapemyrtles Natchez and Muskogee were introduced by the National Arboretum. Since then, many new crapemyrtle cultivars have been developed and introduced by the Arboretum and other programs." [from Website]
Cultivar Selection, Genetics