Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ38.6ʺN 104º56ʹ06.8ʺE, steep rocky slopes near hill top composed with stratified highly eroded limestone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest. Terrestrial and lithophytic herb to 0.5 m tall in shady rocky places. Flowers blue. Locally very common. 3 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1246.
Coordinates (geographic position):23° 4′ 38.6″ N, 104° 56′ 6.8″ E ±1000 mComment:
Record creation: 2019-12-29, Аверьянов Леонид ВладимировичCitation: Specimen LE 01061256 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01061256