Ha Giang Prov., Bac Me Distr., Phieng Luong municipality, around Phieng Day village.
Degraded primary broad-leaved humid evergreen forest along rocky canyon of small stream at the base of mountains composed with solid crystalline highly eroded limestone at elevation 900-1000 m a.s.l. around point 22°38′43.8″N 105°19′19.8″E.
Clustering epiphyte on old mossy trees. Flowers white, petals with pink-purple margins. Very common.