FLORA OF VIETNAM Orchidaceae Dendrobium signatum Rchb.f.
Quang Binh Prov., Minh Hoa Distr., Hoa Tien municipality, La Van village, around point 17°51′45”N 105°49′45”E.
Highly degraded primary and secondary evergreen broadleaved forest on very steep rocky slopes of remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. 200-450 m a.s.l.
Epiphyte on old trees on very steep rocky slope near to top of ridge. Tepals white with purple-violet tint, lip light yellowish, with 2 dark puple-violet spot at the base. Not common.