Oolong Tea
Camellia sinensis

The leaves of Camellia sinensis trees become oolong tea by being only partially oxidized before they are fired. These same leaves can be made into black tea by being more fully oxidized before the final firing. Oolong tea leaves are a greenish-brown color, which indicates their unique place just between green tea and black. Oolong is a bit of a delicacy in the world of tea, and most of it is produced by people on the Formosa Island off the southeast coast of China. Some studies indicate oolong tea leaves contain phenols that can inhibit cholesterol absorption. Oolong teas also contain caffeine, in slightly lower quantities than most black teas, though.