Distribution: Occurring west of the Cascades crest in Washington in the lower Columbia River; southwestern Washington to adjacent northwestern Oregon.
Habitat: Freshwater intertidal zone.
Flowers: July-September
Origin: Introduced from Eurasia
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Wind
[none provided]
PNW Herbaria: Specimen records of Schoenoplectus triqueter in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Schoenoplectus triqueter checklist entry.
OregonFlora: Schoenoplectus triqueter information.
E-Flora BC: Schoenoplectus triqueter atlas page.
CalPhotos: Schoenoplectus triqueter photos.
USDA Plants: Schoenoplectus triqueter information.