Vietnam, Thua Thien – Hue Prov., Nam Dong Distr., Huong Son Municipality, around point 16°09'52''N, 107°36'22''E. Heavily logged primary closed broad-leaved evergreen lowland forest along La Ma River on very steep hill slopes composed with clayey shale at elevation about 300-450 m a.s.l. Terrestrial and lithophytic fern along shady stream slopes. Common.
Record creation: 2026-02-28, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203738 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203738