Oolong is a partially oxidized tea, with a taste somewhere between green and black tea - it's a world of its own waiting for you to discover it. Oolong is made from slightly larger leaves, and is referred to as light or dark oolong depending on the degree of oxidation. Because oolong often has complex flavors, they are fun teas to try in combination with different dishes or desserts. The lighter varieties are normally hard-rolled and often have a floral scent, while the darker oolong teas have even more complex flavors that go well with heavier foods, cheese or even chocolate.
Most oolong - sometimes written as wulong - comes from Fujian in southeast China, or Taiwan ('Formosa oolong').