S.Vietnam, Thua Thien Hue Prov., Phu Loc Distr., Bach Ma National Park, SW slope of Bach Ma mt system around point 16°11′22′'N 107°50′48′'E at elev. 750-850 m a.s.l.
Broad-leaved evergreen primary closed forest along very steep rocky slopes and bluffs of high waterfall faced to the S. Terrestrial fern on steep shady river slopes among mossy rocks. Not common.
HLF 1636 4 May 2003.
Coll. N.T.Hiep, L.Averyanov, N.T.Vinh et al. Grant from Henry Luce Foundation.