N. Vietnam, prov. Son La, distr. Moc Chau, municipality Chieng Hac, vicinities of Co Liu village (N 20°51′ E 104°38′). Primary evergreen broadleaved wet forest on very steep slopes and bluffs of remnant karst limestone ridge at 700-800 m elev. Terrestrial and lithophyte forb up to 1.5 m hg. Petiole green-brown/white tessellated. Common at elev. 700-1100 m. NTH 2941 29 May 1999 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: N.T.Hiep, P.H.Hoang, Averyanov L.
Coordinates (geographic position):20° 51′ N, 104° 38′ E ±1000 mRecord creation: 2022-01-18, Galina Savich, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01167411 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01167411