Vietnam, Nghe An Prov., Tuong Duong Distr., Tam Quang Municipality, Tung Huong village, along Khe Mat stream around point 19°03′15″N 104°36′19″ at elevation about 350 m a.s.l.
Lowland closed secondary and primary old evergreen forest on steep slopes along rocky stream slopes composed with shale and sandstone.
Terrestrial white achlorophyllous erect herb along ridge. Very rare.
HLF 6671 17 March 2007.
Coll. Averyanov L., P.K.Loc, N.V.Trai, N.T.Vinh, N.D.Phuong, Averyanova A. Grant from Henry Luce Foundation.