Distribution: Oregon and California, occasional in estern Washington
Habitat: Margins of vernal pools and ponds.
Flowers: May - June
Origin: Native
Conservation Status: Threatened in Washington (WANHP)
[none provided]
PNW Herbaria: Specimen records of Juncus uncialis in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Juncus uncialis checklist entry.
E-Flora BC: Juncus uncialis atlas page.
CalPhotos: Juncus uncialis photos.
USDA Plants: Juncus uncialis information.