There isn't good enough resolution to read leaves for texture and pubescence, and I can't determine if the photo is sun bleached or the plant has silvery foliage. A wild guess based on shape alone I'd guess Dulichium arundinacea or Pycnanthemum tenuiflorum. I can't deterrmine if the leaf surfaces are sedge-like? It's always a good idea to check for leaf fragrances. If it was Pynanthemum knowing the smell would help.
Jay 6a Chicago
Jay 6a Chicago