Luang Prabang prov., Pon Xay distr., Houay Man village, Phou Tham Keo Mountain, around point 19°57'44.2"N 102°25'45.8"E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 500-650 m a.s.l. Terrestrial herb on shady rocky slope. Leaves uniform green or with dull unclear yellowish spots. Common. LA-VN 2078 4 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):19° 57′ 44.2″ N, 102° 25′ 45.8″ E ±1000 mRecord creation: 2019-02-22, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01049926 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01049926