1911 Encyclopædia Britannica/Labrador Tea

LABRADOR TEA, the popular name for a species of Ledum, a small evergreen shrub growing in bogs and swamps in Greenland and the more northern parts of North America. The leaves are tough, densely covered with brown wool on the under face, fragrant when crushed and have been used as a substitute for tea. The plant is a member of the heath family (Ericaceae).