Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Va Thang 1 village, around point 23º05ʹ52.6ʺN 104º51ʹ26.4ʺE, steep alluvial slopes and flattened mountain summits based on limestone at elevation 1400–1480 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb on steep open grsaay slope. Not common. 22 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1220.1.
Herbarium prepared in 27.05.2020, flowers odorless, entirely light green, L. Averyanov, T. Maisak, VR 1220.1.1 (LE01073232).
Coordinates (geographic position):23° 5′ 52.6″ N, 104° 51′ 26.4″ E ±1000 mRecord creation: 2020-06-12, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01074666 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01074666