Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988ºN 105.08646ºE. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Primary and secondary evergreen broad-leaved humid forest. Terrestrial herb on shady very steep stream slope. Locally common. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1525b (HN, LE01067122, LE01070235).
Fl. et coll. under cultivation on 26 10 2021, L. Averyanov, T. Maisak, VR 1525b
Coordinates (geographic position):22° 58′ 11.57″ N, 105° 5′ 11.26″ E ±1000 mRecord creation: 2021-11-09, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01077333 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01077333