Son La Prov., Van Ho Distr., Xuan Nha Municipality, Muong An village, territory of Xuan Nha natural reserve.
Primary broad-leaved evergreen humid forest on very steep slopes and cliffs of remnant mountain composed by solid highly eroded crystalline limestone at elevation 800-1000 m a.s.l. around point 20°45′06.5″N 104°46′37.8″E.
Epiphytic erect herb on old mossy trees on very steep mossy shady rocky slope near mountain top. Common on mountain top.
Record creation: 2020-10-17, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01073815 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01073815