Dien Bien Prov., Tua Chua Distr., Sin Chai Municipality, around point 22°03′38”N 103°19′56”E. Primary humid evergreen broad-leaved forest on very steep rocky slopes and on tops of remnant mountain composed with highly eroded marble-like solid crystalline limestone at elevation 1350-1500 m a.s.l. Creeping lithophyte on mossy rocky outcrops on top of ridge. Flowers white, lip side lobes with purple stripes, lip apex yellow. Very common. CPC 942 14 December 2010 Photos Coll.: L.Averyanov, P.K.Loc, P.V.The, N.T.Vinh.
Coordinates (geographic position):22° 3′ 38″ N, 103° 19′ 56″ E ±1000 mRecord creation: 2020-06-26, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01068131 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01068131