Eriophorum vaginatum var. opacum Bjornstr. Ground level or underground stems not developed horizontally or vertically. Leaves mostly basal. Leaf or reduced bract closely associated with the base of the inflorescence absent. Terminal spike with both sexes in each floret.
Flowers sessile or subsessile.
Stigmas per style 3. Range in the Canadian Arctic Archipelago limited. Ecology and habitat. A muskeg species that rarely extends far beyond tree line. Arctic Island distribution .