N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Dinh Phung,. Nam Linh mt. (N 22°47' E 105°49'). Old secondary broadleaved wet mossy. cloud forest along tops of remnant karst limestone Nam Linh ridge at. 1550-1600 m alt. Terrestrial and lithophyte herb up to on open wet. mossy vertical cliffs. Flowers lilac. Very common. No CBL 1396 15 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° 47′ N, 105° 49′ E ±1000 mRecord creation: 2019-02-22, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01049311 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01049311