Vietnam, Lang Son Prov., Bac Son Distr., Tan Tri Municipality, around Na Mau village.
Highly degraded primary and secondary broad-leaved evergreen forest on very steep slopes and along tops of ridge composed with solid highly eroded crystalline gray marble-like limestone at elevation about 500-600 m a.s.l.
Creeping lithophyte on open mossy rocks. Sepals green-brown, petals white. lip with greenish central spot. Leaves dull green-silver-brownish. Locally very common.
Record creation: 2020-09-06, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01068386 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01068386