Tea is an extremely popular beverage made from (usually) the leaves of the flowering plant Camellia sinensis. Sometimes the stems, oil or buds are also used. The words chai and cha are occasionally used in Commonwealth English, particularly in former British colonies, and are also heard in England and the United States.
Tisanes, infusions made with flowers, berries and herbs from other plants, are also in common use, either for their medicinal properties or as non-stimulating alternatives to tea proper.