Quina is a term that refers to a type of tree from the South American Andes. It is commonly used in herbal medicine to treat a variety of ailments. However, there are several synonyms that can be used interchangeably with quina. The most notable synonym is Cinchona, which is the botanical name for the quina tree. Additionally, quina bark can be referred to as that of the Jesuit's bark, Peruvian bark, or simply bark of the cinchona tree. Historically, the use of quina has been instrumental in the treatment of malaria, and the various synonyms ensure the plant is well-understood across various cultures and languages.