Son La Prov., Moc Chau Distr., Chieng Son comm., Pha Luong village, Pha Luong Mountain (elevation from Pha Luong village at 930 m to Mt. peak at 1860 m a.s.l.). Primary cloud evergreen broad-leaved forest on flat Pha Luong summit composed with eroded red-brown sandstone at elevation 1750-1850 m a.s.l. around point 20°40'23"N 104°37'52"E. Creeping lithophytic and terrestrial herb on shady mossy boulders. Not common. 23 September 2016 CPC 8001. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.
Coordinates (geographic position):20° 40′ 23″ N, 104° 37′ 52″ E ±1000 mRecord creation: 2019-06-21, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055650 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055650