Coffee is a favorite beverages on every continent and is one of the largest international commodities. Coffea cahephora 'Robusta' coffee is native to the forests of Ethiopia and today it is grown throughout Asia and Africa. Coffea arabica makes up the majority of cultivated coffee and is considered of finer quality. While it is native to Yemen, it is grown in much of South America and Asia. Conservation work in the native habitats is being carried out on both of these economically important plants.