Cinchona is a genus of flowering plants in the family Rubiaceae, native to the tropical Andean forests of western South America. The genus includes a number of species, the bark of which contains a variety of alkaloids, including quinine and cinchonine, which have been used to treat malaria and other conditions. The most well-known species is Cinchona officinalis, commonly known as quinine tree or jsyquinine tree in English, quinineboom in Dutch, and quininebaum in German. In Hebrew, it is referred to as עץ הקינין (etz hakinin). The bark of cinchona trees has been used medicinally for centuries, with historical records indicating its use by indigenous peoples of the Andes. The introduction of cinchona bark to Europe in the 17th century revolutionized the treatment of malaria, which was previously a significant cause of morbidity and mortality. The active compounds, particularly quinine, were isolated in the 19th century, leading to the development of synthetic derivatives and other antimalarial drugs.