Hoa Binh Prov., Lac Son Distr., Tu Do Municipality, Mon village, around point 20°24′57”N 105°13′16”E. Secondary scrub in alluvial valley between limestone hills at elevation about 200 m a.s.l. Herb to 1 m tall. Flowers purple. Very common. CPC 1394 23 March 2011 Coll.: N.Q.Hieu, L.Averyanov, N.T.Hiep, P.K.Loc, P.V.The, N.T.Vinh, T.B.Ngan, N.Tap, D.D.Dao, V.T.Ha.
Coordinates (geographic position):20° 24′ 57″ N, 105° 13′ 16″ E ±1000 mRecord creation: 2021-11-09, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01077394 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01077394