This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Herbal Tea".
An herbal tea, tisane, or ptisan is an herbal infusion made from anything other than the leaves of the tea bush (Camellia sinensis). The English word "tisane" originated from the Greek word ptisane, a drink made from pearl barley.
Herbal teas can be made with fresh or dried flowers, leaves, seeds or roots, generally by pouring boiling water over the plant parts and letting them steep for a few minutes. Seeds and roots can also be boiled on a stove. The tisane is then strained, sweetened if so desired, and served. Many companies produce herbal tea bags for such infusions.
Many blends of real tea are prepared by adding other plants to an actual tea (black, oolong, green, yellow or white tea); for example, the popular Earl Grey tea is black tea with bergamot, Jasmine tea is Chinese tea with Jasmine, and Genmaicha is green tea with roasted rice. Such preparations are still called "tea".