plants of that kind are mixed in with a flower garden near farm fields - the stems are smooth, photos show the plant passed the flower stage, what you see are already seeds or empty pods at the top of each stem -
I'm not sure it is an A. virginica, the stems are not hairy, as described on the link A. virginica, yes- I'm in AR, Lonoke County- thanks for identifying the genus- the plants covered some bare spots and looked pretty in the flower beds.