Vietnam, Ha Giang Prov., Hoang Su Phi Distr., Ho Thau Municipality, around Chien Thang village, about 4 km to NW of Ho Thau village (22º37’24’’N, 104º38’00’’E) at elev. 1200-1500 m a.s.l. Remnants of heavily logged primary and secondary closed evergreen broad-leaved forest on very steep slopes of mountains composed with shale and granite with quartzite. Terrestrial fern in open secondary forest with bamboo. Rare.
Record creation: 2026-02-25, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203612 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203612