N.Vietnam, Cao Bang Prov., Trung Khanh Distr., Ngoc Khe Municipality, Pac Nga village, around point 22º54'59''N, 106º31'44''E, at elevation 800-850 m a.s.l. Remnants of primary broad-leaved and coniferous forest on ridge tops and on very steep slopes and cliffs of rocky ridges and mesae composed with light gray solid marble-like highly eroded crystalline limestone. Lithophyte. Flowers light violet-purple, lip white with pink tint, anther deep violet, column white to light green. Occasional.
Record creation: 2020-12-13, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01088419 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01088419