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.
Lithophytic herb of shady vertical cliff near hill top. Leaves uniform light green, sometimes with unclear palmate white spots. Not common.
16 November 2022, Nguyen Huu Cuong, Cao Xuan Hai, L. Averyanov, T. Maisak, AL 1666.
Record creation: 2023-01-13, Galina Savich, PhotoScan D2.. Processing status: work_status_1Citation: Specimen LE 01169973 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01169973