N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Co Lung Municipality, Phia village, around point 20°26′44′'N, 105°11′13′'E. Secondary heavily logged dry evergreen seasonal broad-leaved lowland forest on crystalline marble-like highly eroded limestone, rocky hill slope at elev. 500-600 m. Epiphyte. Occasional.
Flowered in in Hanoi (N.T.Hiep garden) in culture at 04 May 2004. Flowers odorless: tepals light greenish, lip light greenish with brown-purple stripes, column white, anther light yellowish.