Vientiane Prov., Vang Vieng Distr., Phol Xai village, about 8 km to the W of Vang Vieng town, Phar Poon Mt., around point 18°56'11.5"N 102°20'05.0"E. Dry broad-leaved primary and secondary evergreen forest on very steep rocky slopes and on vertical cliffs of remnant highly eroded rocky limestone mountains composed by solid crystalline limestone at elevation 300-900 m. Creeping epiphyte and lithophyte on rocky tops of mountain at elevation 800-900 m. Common. LA-VN 482 15 March 2013. Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, P.V.The, S.Lorphengsy
Coordinates (geographic position):18° 56′ 11.5″ N, 102° 20′ 5″ E ±1000 mRecord creation: 2019-06-12, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055200 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055200