Son La Prov., Son La City, Chieng Co Municipality, around point 21°18'24"N 103°52'53"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 800-900 m a.s.l. Lithophytic creeping herb on open rocky outcrops. Very common. CPC 1111 20 December 2010. Coll.: L.Averyanov, P.K.Loc, P.V.The, N.T.Vinh.
Coordinates (geographic position):21° 18′ 24″ N, 103° 52′ 53″ E ±1000 mRecord creation: 2019-06-11, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055147 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055147