N. Vietnam, Ha Giang prov., Dong Van distr., Tu Tinh municipality (N 23°05′ E 105°15′), 40.7 km to 43° of Ha Giang city. Remnants of dry broadleaved evergreen forest on steep slopes and cliffs near the top of karst limestone isolated mesae at elev. 600-750 m a.s.l. Lithophyte on mossy crevices of shady cliff. Rare. NTH 3530 10 Oct. 1999 Collectors: N.T. Hiep, N.Q. Binh, L. Averyanov, P. Cribb.
Coordinates (geographic position):23° 5′ N, 105° 15′ E ±1000 mRecord creation: 2022-01-18, Galina Savich, PhotoScan D2Citation: Specimen LE 01167239 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01167239