this plant likes wet soil, it grows in the septic field and drainage ditches. doesn't seem to mind the clay soil at all. cluster is about 2-3 ft high, seeds developing now. If better pictures are needed, please let me know.
Where is Lonoke? There is a Lonoke in Texas, and one in Arkansas. A common one around here is soft rush, Juncus effuses, but there are also sedges that look similar.
I live in Austin, which is in Lonoke county in Arkansas Lonoke is also the name of the Lonoke county seat in AR. I checked out your suggestion at the plants.USDA.gov website and the description/images matches with your id: Junus effuses L. or common rush- thanks for your help.