FLORA OF VIETNAM Sterculiaceae Pterocymbidium tinctorium (Blanco) Merr.?
Quang Binh Prov., Minh Hoa Distr., Thuong Hoa municipality, around point 17°41′19”N 105°53′35.5”E.
Primary closed evergreen broad-leaved forest on higher part of remnant mountain rocky slope composed with solid highly eroded crystalline limestone at elevation about 566 m a.s.l.