Houphan Prov., Hem Distr., Nacoc village, Puphadeng mountain, around point 20°09'52.6''N 103°10'19.4''E. Primary and secondary broad-leaved evergreen open dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 1000-1200 m a.s.l. Epiphyte on old trees on mountain top. Common.
Record creation: 2026-02-10, Galina Savich, PhotoScan D2Citation: Specimen LE 01318770 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01318770