Houphan Prov., Hem Distr., Khon Ngua village, around point 19°55'53.2''N 103°16'24.2''E. Secondary broad-leaved evergreen open dry forest with bamboo on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 700-950 m a.s.l.
Terrestrial fern on steep shady rocky slope. Common.
Record creation: 2026-02-17, Galina Savich, PhotoScan D2Citation: Specimen LE 01318702 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01318702