Distribution: Occurring in the Columbia River Gorge in Washington; southwestern British Columbia to California.
Habitat: Stream banks, floodplains, wet prairie, swales, and vernal pools.
Flowers: April-July
Origin: Native
Growth Duration: Annual
Conservation Status: Endangered in Washington (WANHP)
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PNW Herbaria: Specimen records of Juncus kelloggii in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Juncus kelloggii checklist entry.
OregonFlora: Juncus kelloggii information.
E-Flora BC: Juncus kelloggii atlas page.
CalPhotos: Juncus kelloggii photos.
USDA Plants: Juncus kelloggii information.