Vientiane Prov., Vang Vieng Distr., Nathong village, about 5 km to the W of Vang Vieng town, Tham Kang Mt., around point 18°55’51.4”N 102°23’50.6”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 300-400 m. Clustering terrestrial and lithophytic herb with erect to suberect many branching rhizome. Not rare.
14 March 2013, N.T.Hiep, L.Averyanov, N.S.Khang, P.V.The, S.Lorphengsy, LA-VN 421.
Record creation: 2021-11-12, Leonid Averyanov, PhotoScan D2Citation: Specimen LE 01122747 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01122747