Vientiane Prov., Vang Vieng Distr., Na Po village, about 12 km to the W of Vang Vieng town, Pa Nang Oua Mt., around point 18°55'44.9"N 102°20'20.1"E. Dry broad-leaved primary and secondary evergreen and semideciduous forest on very steep rocky slopes and on vertical cliffs of remnant highly eroded rocky limestone mountains composed by solid crystalline limestone at elevation 500-1000 m. Creeping epiphyte. Occasional. LA-VN 514 17 March 2013. Coll.: N.T.Hiep, L.Averyanov, K.Chantthavongsa, N.S.Khang, P.V.The, S.Lorphengsy. Fl. in December 2014. Flowers greenish, tepals with reddish nerves, lip red. Photos. L.Averyanov
Coordinates (geographic position):18° 55′ 44.9″ N, 102° 20′ 20.1″ E ±1000 mRecord creation: 2019-06-12, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055236 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055236