FLORA OF VIETNAM Orchidaceae Bulbophyllum ambrosia (Hance) Schltr.
Vietnam, Ha Giang Prov., Quan Ba Distr, about 2 km to the NE of Quan Ba town, around point 23°05′49″N, 105°01′00″E at elevation about 1150 m a.s.l.
Primary coniferous forest with Calocedrus rupestris, Callitropsis vietnamensis and Pseudotsuga sinensis on rocky highly eroded marble-like limestone remnant mountains.
Creeping epiphyte on very steep mossy rocky slope. Flowers white, sepals with purple stripes. petals white with yellow to greenish tint, lip light yellow to white with purple markings. Very common.