Bolikhamsai prov., Thaphabat distr., Nam Bon village, Phou Khao Khouay national park, Tad Xai Waterfall, around point 18°27'25.9''N 103°08'17.5''E. Degraded primary and secondary evergreen dry forest along river on eroded sandstone at elev. About 340 m a.s.l. Lithophytic and occasionally terrestrial large herb on shady mossy boulders and river cliffs. Leaves uniform green, fruits glossy green. Rare, but locally abundant.
Record creation: 2026-03-01, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203757 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203757