Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23º03ʹ13.4ʺN 104º51ʹ48.8ʺE, steep rocky slopes of stream valley composed with eroded stratified highly eroded limestone at elevation 1000-1200 m a.s.l. Primary evergreen broad-leaved very humid forest. Densely clustering herb on open wet mossy river rocks. Flowers yellowish to green. Locally abundant. 23 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 763.
Coordinates (geographic position):23° 3′ 13.4″ N, 104° 51′ 48.8″ E ±1000 mRecord creation: 2022-10-08, Larisa Orlova, PhotoScan D2. Part 1.. Processing status: work_status_1Citation: Specimen LE 01193211 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01193211