Houphan Prov., Hem Distr., Nacoc village, Puphadeng mountain, around point 20°09'52.6''N 103°10'19.4''E.
Primary and secondary broad-leaved evergreen open dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 1000-1200 m a.s.l.
Epiphyte on old trees on mountain top. Flowers light purple-violet, lip dark red-brown, column green. Common.
Record creation: 2021-01-15, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01088933 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01088933