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. Terrestrial fern on steep rocky slope near mountain top. Very common.
Record creation: 2026-02-17, Galina Savich, PhotoScan D2Citation: Specimen LE 01318769 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01318769