Vietnam, Lang Son Prov., Bac Son Distr., Tan Tri Municipality, around Na Mau village, Khau Kieng ridge composed with shale.
Deeply degraded remnants of primary and secondary broadleaved evergreen wet forest with bamboo at elevation 800-1100 m a.s.l. Terrestrial sedge on shady rocky slope. Very common.
Record creation: 2023-08-07, Tatiana Maisak, PhotoScan D2.Citation: Specimen LE 01232363 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01232363