Greek Mountain Tea is made using the dried leaves and flowers of Sideritis plants (ironwort). The tea is aptly named: the plant used to make it is found on rocky slopes at elevations over 3,200 feet (1000 meters). These plants are hardy flowering perennials that have adapted to survive with little water and little soil. Only one type of this plant, Sideritis raeseri, is cultivated - and only in Greece; otherwise, this and other types are gathered in the wild.
Mountain Tea is enormously popular in Greece, and used most often in winter when levels of physical activity decrease and colds, aches, and pains increase. It is said to have a positive effect on almost anything that ails but, most notably, it is used for colds, respiratory problems, digestion, the immune system, mild anxiety, and as an anti-oxidant. It is also used as an anti-inflammatory and to reduce fever.