Bac Kan Province, Ba Be District, Ba Be National Park. Dray evergreen broad-leaved old secondary forest with domination of Burretiodendron hsienmu, Streblus asper and Arenga pinnata on crystalline highly eroded rocky limestone near the boat station at elevation 250–300 m a.s.l. Tree 10-15 on shady rocky steep slope. Flower tube white outside, inside white with many reddish purple marks, pistil and anthers white. Not common.
18 November 2022, Nguyen Huu Cuong, Cao Xuan Hai, L. Averyanov, T. Maisak, AL 1682.
Record creation: 2023-01-13, Galina Savich, PhotoScan D2.. Processing status: work_status_1Citation: Specimen LE 01169975 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01169975