Distribution: Occurring on both sides of the Cascades crest in Washington; southern Washington to California, east to Nevada; also in eastern North America.
Habitat: Damp, silty riverbanks.
Flowers: June-August
Origin: Introduced from Eurasia
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Wind
[none provided]
PNW Herbaria: Specimen records of Cyperus fuscus in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Cyperus fuscus checklist entry.
OregonFlora: Cyperus fuscus information.
E-Flora BC: Cyperus fuscus atlas page.
CalPhotos: Cyperus fuscus photos.
USDA Plants: Cyperus fuscus information.