Cinchona officinalis

Cinchona officinalis is a South American tree in the family Rubiaceae. It is native to wet montane forests in Colombia, Ecuador, Peru and Bolivia, between 1600–2700 meters above sea level.
Description.
Cinchona officinalis is a shrub or tree with rugose bark and branchlets covered in minute hairs. Stipules lanceolate or oblong, acute or obtuse, glabrous. Leaves lanceolate to elliptic or ovate, usually about . long and . wide; acute, acuminate, or obtuse tip; base rounded to attenuate; coriaceous, glabrous above and often lustrous; glabrous beneath or puberulent or short-pilose, especially on the veins. Inflorescences in terminal panicles, many-flowered; hypanthium with short coarse hairs; reddish calyx, glabrous or nearly so, with triangular lobes; pink or red corolla, sericeous, the lobes ovate, acute, the corolla tube being about 1 cm. long. Fruit and oblong capsule, 1.5–2 cm. long, almost glabrous.
Vernacular names.
English: quinine, red cinchona, cinchona bark, Jesuit’s bark, loxa bark, Jesuit’s powder, countess powder, Peruvian bark.
Spanish: quina, cascarilla, cargua cargua, corteza coja.
French: quinquina, écorce du Pérou.
Uses.
"Cinchona officinalis" is a medicinal plant, one of several "Cinchona" species used for the production of quinine, which is an anti-fever agent. It is especially useful in the prevention and treatment of malaria. Other alkaloids that are extracted from this tree include cinchonine, cinchonidine and quinidine.