Cinchona pubescens Cinchona pubescens Cinchona pubescens, also known as red cinchona and quina (Quechua) ( "Cascarilla, cinchona"; "quina-do-amazonas, quineira"), is native to Central and South America. It is known as a medicinal plant for its bark's high quinine content- and has similar uses to "Cinchona officinalis" in the production of quinine, most famously used for treatment of malaria. "C. pubescens" varies from small to large in size, growing to 10 meters in height (33 ft). When cut, the bark tends to turn red. Leaves are elliptical to oblate and thin. The leaves have pubescent teeth that turn red when they are older,
Jesuit's bark of the long list of brochures defending its use and the only independent article on this bark which has been issued by a Jesuit. The two Genoese, Girolamo Bardi, a priest, and Sebastiano Baldo, a physician, who were among the pioneer advocates of the plant, were intimate with the cardinal, and Baldo prefixed to his principal work a letter from de Lugo, dated 1659, on cinchona, which shows that the cardinal even when seventy-seven years old was still active in its behalf. Circumstances created a suitable opportunity for disseminating the bark from Rome throughout Europe by means of the Jesuits.