Publication: Verh. K.K. Zool.-Bot. Ges. Wien. 38(Sitzungsber.): 49. 1888.
Origin: Introduced from Eurasia
selected vouchers: WTU
Notes: FNA23: "In North America Schoenoplectus triqueter is known only from the tidal Columbia River system (B. W. Lightcap and A. E. Schuyler 1984), where it forms fertile hybrids with S. tabernaemontani [S. ×kuekenthalianus (Junge) D. H. Kent = Scirpus ×scheuchzeri Brugg]. Fertile hybrids between the same species also occur in Europe."