Carex bushii

Carex bushii is a species of sedge in the genus "Carex". It native to the eastern United States where it is found in areas of natural grassland.
"Carex bushii" is distinguished from the similar "Carex caroliniana", "Carex complanata", and "Carex hirsutella" by having pistillate scales that are at least as long as the perigynia (the covering of the achene).