FLORA OF VIETNAM Orchidaceae Arundina graminifolia (D. Don) Hochr.
Vietnam, Thua Thien – Hue Prov., A Luoi Distr., Hong Van Municipality, Ta Lo village, around point 16°21′52′'N, 107°09′36′'E at elevation about 800-1000 m a.s.l.
Secondary wet broad-leaved closed forest on steep mountain slopes composed with shale and granite.
Terrestrial herb up to 1.5 m tall on open rocky slope along trail. Tepals white or white with light pink tint, lip purple-violet with yellow-orange center. Very common.