FLORA OF VIETNAM
Orchidaceae
Polystachya concreta (Jack.) Garay & Sweet.

Vietnam, Quang Tri Prov., Huong Hoa Distr., Huong Phung Municipality, vicinities of Sa Mui pass, around point 16°46′49″N 106°35′28″E at elevation about 600-700 m a.s.l.

Remnants of primary broad-leaved evergreen submontane forest along rocky river valley on shale rocks.

Lithophytic herb on vertical mossy rocky cliffs. Not common.

HLF 5896 30 March 2006.

Coll. N.T.Hiep, L.Averyanov, P.K.Loc, P.V.The, N.S.Khang, P.H.Duc, L.T.Son, S.Bounphanmy, T.K.Ratana, O.Sonliya, T.Q.Dang, N.V.Hien, H.T.N.Trang, L.T.Chau.
Grant from Henry Luce Foundation.