N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality, village Phia Khao, around point 22°15′35′'N, 105°31′17′'E at elevation 800-900 m a.s.l. Remnants of primary broad-leaved evergreen closed wet forest on very steep slopes and cliffs of rocky ridges and mesae composed with solid marble-like stratified limestone. Lithophyte on shady cliff. Not rare. HAL 4628 19 May 2004 Collectors: L.Averyanov, N.T.Hiep, P.V.The, N.T.Vinh.
Coordinates (geographic position):22° 15′ 35″ N, 105° 31′ 17″ E ±1000 mRecord creation: 2020-06-26, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01068102 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01068102