N. Vietnam, prov. Cao Bang, distr. Ha Lang, municipality Thang Loi,. vicinities of Ban Hao (N 22°43' E 106°40'), about 43 km to E from Cao. Bang town. Secondary evergreen broadleaved closed forest on steep. slopes near the tops of remnant limestone ridges at 700 m alt. Herb on. steep slopes. Flowers pale yellow with violet tint. Very common.
No CBL 679
26 Nov. 1998. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). Collectors: Averyanov L., P.K.Loc, N.X.Tam.
Coordinates (geographic position):22° 43′ N, 106° 40′ E ±1000 mRecord creation: 2019-03-16, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01049956 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01049956