Medicinal source:

Ali, H., Sannai, J., Sher, H. & Rashid, A. (2011). Ethnobotanical Profile of Some Plant Resources in Malam Jabba Valley of Swat, Pakistan. Journal of Medicinal Plants Research. 5 (17): 4171-4180. [MPNS is grateful to Maroof Shah for providing the data from this reference.]