FLORA OF VIETNAM Lycopodiaceae Huperzia carinata (Poir.) Trevis.
Vietnam, Thua Thien – Hue Prov., Nam Dong Distr., Huong Son Municipality, around point 16°09′58′'N, 107°36′07′'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 300-400 m a.s.l.
Humus epiphyte on tall trees along rocky stream valley. Not common.