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. Terrestrial herb on shady river slope, on sandy soil. Old inflorescences spadix-like with sessile flowers. Not rare. LA-VN 2201 11 April 2017. Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak.
Coordinates (geographic position):18° 27′ 25.9″ N, 103° 8′ 17.5″ E ±1000 mRecord creation: 2019-03-31, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01049867 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01049867