N. Vietnam, prov. Cao Bang, distr. Ha Lang, municipality Duc Quang, vicinities of Lung Hoai village (N 22°43' E 106°40'), about 43 km to E from Cao Bang town. Primary open coniferous and mixed semideciduous forest (with Pinus kwangtungensis and Pseudotsuga brevifolia) along tops of remnant limestone ridge at 600-650 m alt. Epilite and terrestrial herb on steep shadow slopes. Not common. No CBL 760 28 Nov. 1998 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: Averyanov L., P.K. Loc.
Coordinates (geographic position):22° 43′ N, 106° 40′ E ±1000 mRecord creation: 2019-01-13, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01048979 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01048979