N. Vietnam, prov. Son La, distr. Moc Chau, municipality Chieng Hac, vicinities of Co Liu village (N 20є51' E 104є38'). Primary evergreen broadleaved wet mossy forest along rocky tops of remnant karst limestone ridge at 1200-1240 m elev. Lithophyte forb on mossy vertical shady cliffs of N exposition. Not common.
No NTH 2971 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: 2020-11-02, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01074851 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01074851