Luang Prabang prov., Pon Xay distr., Houay Man village, Phou Tham Keo Mountain, around point 19°57'44.2''N 102°25'45.8''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 500-650 m a.s.l. Woody wine to 10 m long on open mossy rocks on mountain tops. Flowers light pink with bright red nerves. Not rare. LA-VN 2066 4 April 2017. Photos.
Record creation: 2020-02-29, Аверьянов Леонид ВладимировичCitation: Specimen LE 01073017 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01073017