Ha Giang prov., Quan Ba distr., Tung Vai commune, Thang village, around point 23º03ʹ04.2ʺN 104º51ʹ09.7ʺE, steep rocky slopes near mountain top composed with eroded stratified highly eroded limestone at elevation 1200-1450 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Flowers white to light yellowish. Not common. 24 April 2018, L. Averyanov, Nguyen Sinh Khang, Nguyen Tien Hiep, Nguyen Quang Hieu, Chuong Quang Ngan, T. Maisak, VR 856.
Coordinates (geographic position):23° 3′ 4.2″ N, 104° 51′ 9.7″ E ±1000 mRecord creation: 2019-05-03, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01054232 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01054232