FLORA OF VIETNAM Orchidaceae Juss. Vanda concolor Blume
N. Vietnam, Hoa Binh prov., Da Bac distr., to the SW of Doan Ket village (20°54′01′'N, 105°04′19′'E). Primary broad-leaved evergreen forest on steep slopes of remnant highly eroded limestone ridge at elev. 800-1000 m a.s.l. Epiphyte. Not common.