N. Viet Nam, Ha Giang Prov., Quan Ba Distr., Degraded forest along mountain ridge to south of Sin Suoi Ho School around point 23°06′57″N, 105°01′48″E at elev. 1000-1100 m. Exposed limestone outcrops. Epiphyte. Occasional.
3 April 2000. Collectors: D.K.Harder, N.T. Hiep, L.V. Averyanov, N.Q. Hieu, DKH 5016. Det.: L. Averyanov, Aug. 2002.