FLORA OF VIETNAM Orchidaceae Dendrobium tortile Lindl.
Vietnam, Thua Thien – Hue Prov., Nam Dong Distr., Huong Son Municipality, around point 16°10′22′'N, 107°36′24′'E.
Fractionally logged primary closed broad-leaved evergreen lowland forest along La Ma River on very steep hill slopes composed with clayey shale and sandstone at elevation about 300 m a.s.l.
Epiphyte on mossy tall trees along rocky stream valley. Flowers with light sweet fragrance, tepals light olive-yellow, tips light violet, Lip deep purple-violet with yellow base and light olive-yellow apex. Not common.