Luang Prabang prov., Ngoy distr., Ngoy village, Pha Noi Mountain, around point 20°42'53.6"N 102°40'34.7"E. Remnants of primary evergreen forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 400-450 m a.s.l. Creeping lithophyte on mossy rocks on mountain top. Very common, occasionally abundant. LA-VN 1967 1 April 2017. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Vichith Lamxay, Koudkeo Phommachanh, Phizar Sayalath, Keooudone Souvannakhoummane.
Coordinates (geographic position):20° 42′ 53.6″ N, 102° 40′ 34.7″ E ±1000 mRecord creation: 2019-06-12, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055303 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055303