Strickland-Constable, R., H. Schneider, S.W. Ansell, S.J. Russell, and S. Knapp. 2010. Species identity in the Solanum bahamense species group (Solanaceae, Solanum subgenus Leptostemonum). Taxon 59(1): 209-226.

The three varieties no longer considered distinct are either nonstandard (var. bahamense, var. luxurians, and var. rugelii.).  Inactivating these records from Biotics is desired.