Eriophorum gracile
 
Slender Cottongrass

Inflorescence

Greenbush Bog, 20 km West of Hudson Bay, SK on Highway #3
11-June-2017

Note there is a single leaf-like bract at the base of the inflorescence and that this bract is shorter than the inflorescence.   Note also that the inflorescence contains more than one spikelet.