Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada.
Habitat: Vernal pools, drying shores,and rocky swales.
Flowers: May-June
Origin: Native
Growth Duration: Annual
Conservation Status: Threatened in Washington (WANHP)
Pollination: Wind
[none provided]
PNW Herbaria: Specimen records of Juncus uncialis in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Juncus uncialis checklist entry.
OregonFlora: Juncus uncialis information.
E-Flora BC: Juncus uncialis atlas page.
CalPhotos: Juncus uncialis photos.
USDA Plants: Juncus uncialis information.