Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the norther Great Plains.
Flowers: June-August
Origin: Native
Conservation Status: Not of concern
Pollination: Wind
[none provided]
PNW Herbaria: Specimen records of Juncus balticus ssp. ater in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Juncus balticus ssp. ater checklist entry
OregonFlora: Juncus balticus ssp. ater information
E-Flora BC: Juncus balticus ssp. ater atlas page
CalPhotos: Juncus balticus ssp. ater photos