Phu Tho Prov., Tan Son Distr., Xuan Son Municipality, Du village, around point 21°06′57”N 104°57′17”E. Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation 400-600 m a.s.l. Creeping epiphyte on gnarled trees on rocky tops of limestone ridge. Flowers dull yellow. Very common. HAL 12627 16 February 2009 Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.
Coordinates (geographic position):21° 6′ 57″ N, 104° 57′ 17″ E ±1000 mRecord creation: 2020-09-11, Анна Леонидовна Аверьянова. Processing status: work_status_1Citation: Specimen LE 01068957 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01068957