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 on shady rocky steep slope. Flowers: tepals dull yellowish with violet tint, corona dull violet. Very common.
16 November 2022, Nguyen Huu Cuong, Cao Xuan Hai, L. Averyanov, T. Maisak, AL 1661.
Record creation: 2023-01-31, Tatiana Maisak, PhotoScan D2.. Processing status: work_status_1Citation: Specimen LE 01169989 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01169989