Son La Prov., Moc Chau Distr., Chieng Son comm., Pha Luong village, Pha Luong Mountains. Primary and secondary evergreen broad-leaved forest on very steep slopes and cliffs of highly eroded red-brown sandstone at elevation 1000-1050 m a.s.l. around point 20°42′02.1N 104°37′23.1E. Terrestrial herb in shady rocky place on steep slope. Flowers dirty purple-brown, stigma white. Not common. 22 September 2016 CPC 7912. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.
Coordinates (geographic position):20° 42′ 2.1″ N, 104° 37′ 23.1″ E ±1000 mRecord creation: 2021-12-02, Tatiana Maisak, PhotoScan D2Citation: Specimen LE 01077644 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01077644