FLORA OF VIETNAM Orchidaceae Habenaria ciliolaris Kraenzl. ?
Northern Vietnam, Thai Nguyen Prov., Vo Nhai Distr., Thuong Nung Municipality, in the vicinity of point 21°48′50′'N, 105°57′05′'E. Primary dry evergreen seasonal broad-leaved forest (with Burretiodendron hsienmu as a main co-dominant of the first forest stratum) on highly eroded remnant ridge composed with solid hard marble like limestone at elev. 550 m a.s.l. Terrestrial ephemeroid tuberiferous herb in open grassy place among rocks. Locally common.