N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Dinh Phung, Nam Linh mt. (N 22°47′ E 105°49′). Secondary mossy short tall grasslands among limestone rocks on shale alluvial foothills of karst limestone Nam Linh ridge at 1450-1500 m alt. Prostrate herb. Flowers blue-violet. Very common.
CBL 1400 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: 2019-08-29, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01055941 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055941