Borikhamxai Prov., Khamkeut Distr., Phone Sa At Village around point 18°01’48”N 105°02’30”E. Remnants of primary swamp Glyptostrobus coniferous forest along narrow flat swampy valley of small stream coming from N to the S at elevation 615 m a.s.l. Terrestrial swampy fern. Very common. Main dominant of swam forest herbaceous stratum.
Record creation: 2026-03-01, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203759 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203759