Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23º03ʹ00.4ʺN 104º52ʹ02.2ʺE, steep rocky slopes of river valley composed with eroded limestone at elevation 1000–1060 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb on mossy wet slope. Flowers white. Common. 19 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Quang Ngan, VR 1037.
Coordinates (geographic position):23° 3′ 0.4″ N, 104° 52′ 2.2″ E ±1000 mComment:
Record creation: 2019-05-09, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01049032 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01049032