杜香(原变种) du xiang (yuan bian zhong)

Ledum tomentosum Stokes, nom. illeg. superfl.; Rhododendron palustre (Linnaeus) Kron & Judd (1990), not Turczaninow ex de Candolle (1839); R. tomentosum Harmaja.

Shrubs often erect. Leaf blade linear, 1–3 × 0.1–0.3 cm, abaxially densely rufous-woolly, not white-pubescent, margin strongly recurved.

Often dominant in coniferous forests, marshes; 400–1400 m. Heilongjiang, Nei Mongol [Mongolia; NE Asia, C and N Europe, North America].