Bac Kan Province, Ba Be District, Nam Mau Municipality, central part of Ba Be National Park. Rather dray evergreen broad-leaved old secondary forest with domination of Burretiodendron hsienmu and Streblus asper on crystalline highly eroded rocky limestone at elevation 600-750 m a.s.l. Terrestrial and lithophytic herb in wet humid rocky valley between limestone hills. Occasional.
16 November 2022, Nguyen Huu Cuong, Cao Xuan Hai, L. Averyanov, T. Maisak, AL 1665.
Flowered in culture on 14 July 2025, flowers pure white, anthers light yellow-greenish, L. Averyanov, T. Maisak, AL1665.
Record creation: 2025-07-23, Иван Владимирович Татанов. Processing status: work_status_1Citation: Specimen LE 01282500 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01282500