Vietnam, Quang Binh Prov., Bo Trach Distr., Hung Trach Municipality, Khe Ba Tanh locality, around point 17º27'24''N, 106º23'14''E at elev. 600-700 m a.s.l. Slightly logged primary closed broad-leaved evergreen forest on slopes of mountains composed with shale, sandstone and occasionally granite. Terrestrial and lithophytic herb on shady slope of stream valley along stream. Flowers olive-brownish, lip white. Locally common.
Record creation: 2021-04-30, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01122131 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01122131