Medicinal source:

Bussmann, R.W., Paniagua-Zambrana, N., Chamorro, M.R., Moreira N.M., Cuadros Negri, M.LdR. & Olivera, J. (2013). Peril in the Market-Classification and Dosage of Species Used as Anti-Diabetics in Lima, Peru. Journal of Ethnobiology and Ethnomedicine. 9: 37.