Hello, Dr. Hill,
This sedge is growing in the fall line where hardwoods were cleared years ago so it has been thriving in full sun and was photographed on Mar. 28. The seed head is pretty distinctive. Thanks in advance.
I sent the pictures you sent to Paul Marcum, a colleague here in Illinois who knows more about sedges than I do. He replied “This one looks like a Scleria sp. (nutsedge) but I cant see enough to say for sure which species”. It is very immature.
Dr. Steven Hill, Botanist, SCNPS