N. Vietnam, Prov. Thai Nguyen, distr. Dai Tu, vicinities of Tam Dao town, NE macroslope of Tam Dao ridge at 950-1000 m alt. (N 21°27′ E 105°38′). Closed wet evergreen broad-leaved primary forest on very steep mt slope. Epilite on vertical open rocky bluffs. Abundant. VH 5044 31.05.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)
Collectors: L.Averyanov, N.T.Hiep, P.K.Loc
Coordinates (geographic position):21° 27′ N, 105° 38′ E ±1000 mRecord creation: 2020-09-03, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01068764 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01068764