What are the different kinds of Korean tea?

Originally "tea" in Korean referred to an aromatic beverage prepared by pouring hot water over treated (but not fermented or oxidated) leaves of the Camellia Sinensis plant. However, nowadays "tea" in Korea also refers to beverages from other sources. These are officially called "replacement tea". Thus, Korean tea (Korean: 차 Korean pronunciation: [tɕʰaː]) is a common name for a variety of herbal and plant infusions, including the leaves of the tea bush (Camellia sinensis). Like brews made from tea leaves, Korean tea is prepared by infusing fruits, leaves, roots, or grains in hot water. The resulting drink is served hot or cold.