Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23º05ʹ13.5ʺN 104º48ʹ30.2ʺE, rocky outcrops on steep rocky slopes composed with eroded karstic limestone at elevation 1750–1950 m a.s.l. Highly degraded remnants of primary evergreen broad-leaved very humid forest and evergreen secondary shrubs. Herbaceous vine 1–2 m long among open secondary shrubs. Flowers light blue. Common. 20 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1061.
Coordinates (geographic position):23° 5′ 13.5″ N, 104° 48′ 30.2″ E ±1000 mComment:
Record creation: 2019-05-23, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01054633 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01054633