Khler's Medizinal-Pflanzen in naturgetreuen Abbildungen mit kurz erluterndem Texte :.Gera-Untermhaus :Fr. Eugen Khler,[1883-1914].biodiversitylibrary.org/page/303324
Chewed by half a billion people in conjunction with a piper leaf and an alkaline agent. Known in Indonesia as Pinang. Said to be mildly intoxicating, as well as addictive, carcinogenic and tooth staining. I