Hoa Binh Province, Lac Son District, Tu Do Municipality, Mon village, around point 20°25′14.1″N 105°19′42.5″E. Growing in a very steep primary evergreen broad-leaved forest covering limestone outcrops and cliffs, in shady clearings in humid humus rich soils, elevation 460–470 m a.s.l., rare, 22.01.2018, Bleddyn Wynn-Jones, BWJ 15732.
Coordinates (geographic position):20° 25′ 14.1″ N, 105° 19′ 42.5″ E ±1000 mComment:
Record creation: 2020-06-03, Аверьянов Леонид ВладимировичCitation: Specimen LE 01073317 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01073317