Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son village, around point 20°46’02.0N 104°37’03.1E.Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1100-1050 m a.s.l.
Lithophytic herb on vertical cliff. Flowers bright yellow, lip center chestnut-brown. Not rare.
Record creation: 2020-12-17, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01088508 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01088508