Medicinal source:

Otieno, J., Abihudi, S., Veldman, S., Nahashon, M., van Andel, T. & de Boer, H.J. (2015). Vernacular Dominance in Folk Taxonomy: a Case Study of Ethnospecies in Medicinal Plant Trade in Tanzania. Journal of Ethnobiology and Ethnomedicine. 11 (10).