mountain balm
/ˌmaʊntɪn ˈbɑːm/Chiefly US
noun
1A medicinal herb of the genus Eriodictyon (family Hydrophyllaceae), especially E. californicum.
2A white-flowering shrub, Ceanothus velutinus (family Rhamnaceae), of the western U.S., the leaves of which are used as a tobacco substitute by some North American Indians.
Origin
Early 19th century (in an earlier sense). From mountain + balm.