Symon (1985) pp. 156-158 (S. grandiflorum); Vorontsova et Knapp (2016); Z. O. Gbile, S. K. Adesina, "Nigerian Solanum Species of Economic Importance" in Annals of the Missouri Botanical Garden vol. 75 (1988) pp. 862-865 JSTOR
Charles B. Heiser, "Ethnobotany of the Naranjilla (Solanum quitoense) and Its Relatives" in Economic Botany vol. 39 (1985) pp. 4-11 JSTOR