Houphan Prov., Xon Distr., Nong Hua Pa Noi village, around point 20°13'02.1''N 103°24'23.3''E. Primary and secondary broad-leaved evergreen forest on very steep rocky mountain slopes composed by shaly limestone at elev. 1100-1200 m a.s.l. Tree 20-25 m tall in open secondary forest on rocky slope. Locally common. Occasional secondary forest co-dominant.
Record creation: 2026-03-18, Аверьянов Леонид ВладимировичCitation: Specimen LE 01204063 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01204063