Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Terrestrial herb in mossy shady place. Occasional. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1410.5 (HN, LE).
Herbarium prepared in 15 March 2021. Flowers entirely light yellow green. L. Averyanov & T. Maisak, VR 1410.5.
Coordinates (geographic position):23° 3′ 12.56″ N, 104° 51′ 52.06″ E ±1000 mRecord creation: 2021-04-14, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01077026 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01077026