N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Hong Municipality, around point 18º34'06''N, 105º11'40''E. Primary broad-leaved evergreen forest on steep mt slopes composed with granite along Khe Van stream at elev 350-450 m a.s.l. Terrestrial fern. Very common.
Record creation: 2026-03-03, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203818 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203818