Luang Prabang prov., Pon Xay distr., between Houay Man and Nam Bo villages, Phou Hua Ben Toc Mountain, around point 19°57'33.1''N 102°25'25.8''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. Creeping fern on mossy rocks on mountain top. Leaves with white along nerves (fungi infection?) Common.
Record creation: 2026-03-01, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203784 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203784