Thanh Hoa Prov., Thuong Xuan Distr., Van Xuan Municipality, Hang Cao village, Xuan Lien Natural Reserve. Remnants of primary and secondary broad-leaved evergreen forest on highly eroded rocky limestone hills at elevation 100-200 m a.s.l. around point 19°50'47.2"N 105°14'42.7"E. Creeping lithophyte on open mossy rocks near top of mountain. Occasional. 8 November 2013 CPC 6892. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, N.D.Thang, L.D.Qui. Fl. in 16 August 2016. Flowers yellowish with purple marks ans veins. Photos L. Averyanov.
Coordinates (geographic position):19° 50′ 47.2″ N, 105° 14′ 42.7″ E ±1000 mRecord creation: 2019-06-12, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055232 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055232