Carex lenticularis  
Family: Cyperaceae
lakeshore sedge, lenticular sedge, shore sedge, tufted sedge
Carex lenticularis image
Emmet J. Judziewicz  
Carex lenticularis image
Emmet J. Judziewicz  
Carex lenticularis image
Carex lenticularis image
Carex lenticularis image