Son La Prov., Mai Son Distr., Hat Lot town, around point 21°13′05”N 104°06′44”E. Secondary evergreen dry open broad-leaved forest on very steep rocky slopes and on tops of remnant mountain composed with highly eroded marble-like solid crystalline limestone at elevation 550-650 m a.s.l. Clustering lithophytic herb on rocky shady slope. Common. CPC 1146 21 December 2010 Coll.: L.Averyanov, P.K.Loc, P.V.The, N.T.Vinh.
Coordinates (geographic position):21° 13′ 5″ N, 104° 6′ 44″ E ±1000 mRecord creation: 2020-06-26, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01068087 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01068087