Quang Binh Prov., Tuyen Hoa Distr., Lam Hoa municipality, Hung village, around point 17°55'41"N 105°49'43"E. Highly degraded primary and secondary evergreen broadleaved forest on very steep rocky slopes of remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. 200-300 m a.s.l. Lithophytic and epiphytic creeping herb on steep rocky slope. Locally common. CPC 2609f 1 May 2011. Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, P.V.The, N.T.Vinh. Fl. in cultivation it 24 July 2013. Flowers dark violet, apical half of lateral sepals light dull dirty-violet to whitish-violet. Averyanov L.
Coordinates (geographic position):17° 55′ 41″ N, 105° 49′ 43″ E ±1000 mRecord creation: 2019-06-12, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055315 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055315