N Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Co Lung Municipality, Eo Dieu village, around point 20º25'35''N, 105º14'46''E. Primary evergreen seasonal broad-leaved closed lowland forest on crystalline marble-like highly eroded limestone, very steep rocky mt slopes at elev. 400-500 m. Herb vine 10-15 m lg on open cliff. Flowers white with brown-purple marks and black appendages of tepals with white ciliae. Rare.
Record creation: 2023-01-03, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01123778 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01123778