N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality,. village Phia Khao, around point 22°15'52"N, 105°32'01"E at elevation. 800-900 m a.s.l. (Po Luong mountain). Primary broad-leaved evergreen closed forest on very steep slopes and. cliffs near and on tops of rocky ridge composed with solid marble-like. stratified limestone. Terrestrial herb. Occasional. No HAL 4735 21 May 2004. Collectors: L.Averyanov, N.T.Hiep, P.V.The, N.T.Vinh.
Coordinates (geographic position):22° 15′ 52″ N, 105° 32′ 1″ E ±1000 mRecord creation: 2019-05-30, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01054763 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01054763