Son La Prov., Moc Chau Distr., Chieng Son comm., Pha Luong village, Pha Luong Mountains. Primary evergreen broad-leaved and mixed forest with Pinus cernua on mountain tops and steep summit slopes composed with highly eroded red-brown sandstone at elevation 1400-1500 m a.s.l. around point 20°41′33.2N 104°37′37.0E. Terrestrial herb in shady place in middle part of mountain slope. Not rare. 22 September 2016 CPC 7947. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.
Coordinates (geographic position):20° 41′ 33.2″ N, 104° 37′ 37″ E ±1000 mRecord creation: 2021-12-02, Tatiana Maisak, PhotoScan D2Citation: Specimen LE 01077651 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01077651