N. Vietnam, prov. Cao Bang, distr. Ha Lang, municipality Thang Loi, vicinities of Lung Sam village (N 22°45′ E 106°42′). Secondary wet evergreen broadleaved forest with remnants of primary elements on steep slopes and bluffs of karst remnant limestone ridge at 550-600 m elev. Lithophyte on vertical cliffs of N exposition. Rare.
CBL 1690 24 April 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)
Collectors: P.K.Loc, P.H.Hoang, Averyanov L.
Coordinates (geographic position):22° 45′ N, 106° 42′ E ±1000 mRecord creation: 2020-02-21, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01068242 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01068242