Ethnobotanist Cassandra Quave (IMAGE) Emory Health Sciences Caption Emory University ethnobotanist Cassandra Quave, shown in her lab with berries from the Brazilian peppertree. The plant is native to South America where traditional healers in the Amazon have used it as a treatment for skin infections. Credit Emory University Usage Restrictions Must include credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.