All tea is processed from the same bush called Camellia Sinensis. White tea is tea made from new growth buds and young leaves of the plant. The leaves are steamed or fried to inactivate oxidation, and then dried. Green Tea is processed by steaming and scalding the tea leaves for several minutes; they are then rolled and dried. Black Teas go through a different process; the tea leaves are not steamed, but are oxidized or fermented and then dried. The fourth type of tea, which is oolong, goes through the same process as black tea, but it is only oxidized for half the time.