Lang Son Province, Bac Son District. Secondary scrub and secondary evergreen broad-leaved forest on remnant limestone hills composed with highly eroded solid crystalline limestone at elevation 600-700 m a.s.l. Lithophytic and epiphytic herb with ascending stem to 1 m long on and near hill top. Presently very rare.
13 November 2022, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, T. Maisak, AL 1642 (only living plant).
Fl. in cult 24.04.2023, L. Averyanov AL1624. Flowers yellow with purple spots.
Record creation: 2023-05-10, Galina Savich, PhotoScan D2.. Processing status: work_status_1Citation: Specimen LE 01170568 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01170568