Distribution: Occurring west of the Cascades crest along the coast; southwestern British Columbia to western Washington.
Habitat: Tidal mudflats and salt marshes.
Flowers: June-August
Origin: Introduced from Europe
Growth Duration: Perennial
Conservation Status: Not of concern
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PNW Herbaria: Specimen records of Spartina ×townsendii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Spartina ×townsendii checklist entry
OregonFlora: Spartina ×townsendii information
E-Flora BC: Spartina ×townsendii atlas page
CalPhotos: Spartina ×townsendii photos