N.Vietnam, Cao Bang Prov., Trung Khanh Distr., Ngoc Khe Municipality, Pac Nga village, around point 22º54'59''N, 106º31'44''E, at elevation 500-600 m a.s.l. Secondary open shrubs on wet rocky slope of N exposition. Terrestrial and lithophytic fern on mossy places. Not common.
Record creation: 2026-02-25, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203645 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203645