Carex albicans var. albicans
Family: Cyperaceae
blunt-scaled oak sedge, dry woods sedge, oak sedge, white-tinge sedge
[Carex artitecta Mack.,  more...]
Carex albicans var. albicans image
from USDA Plants website  
Carex albicans var. albicans image
University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium (UWSP)