sentences:  For centuries the indigenous peoples of the Amazon have used the bark and leaves of iporuru ("Alchornea castaneifolia") for many different purposes and prepared it in many different ways.The "Alchornea castaneifolia" plant commonly is used with other plants during shamanistic training and, sometimes is an ingredient in ayahuasca (a hallucinogenic, multi-herb decoction used by South American shamans).Throughout the Amazon the bark or leaves of iporuro are tinctured (generally with the local rum, called "aguardiente") as a local remedy for rheumatism, arthritis, colds, and muscle pains.