Quang Ninh Province, Van Don special administrative region, Bai Tu Long National Park, Cai Lim protection sector, around point 21º06’04’’N 107º33’86’’E. Young secondary evergreen broad-leaved forest on steep sandstone and limestone slope at elevation about 65-100 m a.s.l. along a forest trail. Terrestrial rhizomatous herb in a shady place. Flowers dirty violet. Locally common.
29 October 2025, Cuong Huu Nguyen, Nam Van Duong, Tuan Thanh Tran, Hai Xuan Cao, NHC249.
Record creation: 2025-11-22, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203518 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203518