S.Vietnam, Thua Thien Hue Prov., Xuan Loc Distr., Bach Ma National Park, steep S slopes along Dong Truoi ridge around point 16°14′11′'N 107°44′28′'E at elev. 600-800 m a.s.l.
Broad-leaved evergreen primary closed wet forest along steep rocky slopes and cliffs of shady stream canyon. Terrestrial and lithophytic herb in wet shady place among stream rocks. Leaves with red hairs, uniform green. Very common.
HLF 1653 8 May 2003.
Coll. N.T.Hiep, L.Averyanov, N.T.Vinh et al. Grant from Henry Luce Foundation.