Not satisfied at all with this determination. This actually keyed out snugly to Carex panicea, which is unknown in Ohio. Abandoning this lead, I was left with Cx meadii or Cx tetanica, which are difficult to separate. Cx meadii is known to occur in dry or wet prairies, while the only time I've run into Cx tetanica was in a bog.

Infrequent in disturbed wet prairie; culms arising singly, bases pale brown.

Essentially the only extant site left in the state of Ohio. Population in good health, numbers, and blooms! Specifically the globally rare eastern variety laxus. Location purposefully inaccurate (even if obscured).