Houaphan Prov., Viengxay Distr., Xieng Luong village, around point 20°22'06.1"N 104°17'18.6"E. Primary and secondary broad-leaved evergreen dry forest on very steep rocky slopes of highly eroded mountains composed by solid marble-like limestone at elev. 600-700 m a.s.l. Undershrub to 1 m tall on mossy shelves of shady vertical cliff near mountain top. Not rare. TM1282 8 April 2015. Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Hieu, T.Maisak, Somneuk Bouthamounty.
Flowered in culture on 09.06.2026, L. Averyanov, TM1282
Record creation: 2026-06-30, Tatiana Maisak, PhotoScan D2Citation: Specimen LE 01317839 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01317839