Lao Cai Prov., Sa Pa Distr., slopes of Hoang Lien Son Range in vicinities of Sa Pa town.
Evergreen broad-leaved montane forest on very steep mountain slopes at elevation about 1500-1800 m a.s.l.
Epiphytic undershrub on tall mossy trees. Flowers white with greenish tinp, tepals sometimes with light pinkish tips. Floral bracts pale red. Occasional.
HAL 11138 25 Apr. 2007. Photo. Coll.: L.Averyanov, P.K.Loc, A.Averyanova.