N. Vietnam, prov. Cao Bang, distr. Tra Linh, municipality Luu Ngoc,. vicinities of Lung Mu village (N 22°47' E 106°18'), about 14 km from. Cao Bang town to the N. Secondary evergreen broadleaved closed forest. on steep slopes and bluffs of remnant limestone ridge at 650-800 m. alt. Epilite herb on shadow rocks. Not rare. No CBL 1201 13 Dec. 1998. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). Collectors: N.T.Hiep, N.Q.Binh, P.K.Loc, N.X.Tam, Averyanov L.
Coordinates (geographic position):22° 47′ N, 106° 18′ E ±1000 mRecord creation: 2019-02-22, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01049891 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01049891