Cinchona pubescens, the Quinine Tree, is known for because its bark has a lot of quinine. It has similar uses to "Cinchona officinalis" in making quinine, used for treatment of malaria. It is native to Costa Rica, Venezuela, Ecuador, Peru and Bolivia. In Ecuador, "C. pubescens" is found at altitudes from 300 to 3900 m above sea level. It grows to about 10 metres in height. It has the widest distribution of all Cinchona species 