Chinchona bark comes from the Cinchona tree, native to the tropical regions of South America. This bark is known for its high content of quinine, a compound that has been used for centuries to treat malaria. The tree's bark is harvested and dried, making it a valuable resource in traditional medicine. In addition to its medicinal uses, Chinchona bark has played a significant role in the history of medicine. Quinine, derived from the bark, was the first effective treatment for malaria and has contributed to the development of various antimalarial drugs. Today, it is also used in tonic water and some soft drinks for its distinct bitter flavor.