This is Eragrostis, Love Grass 2011, half the size of Muhly.
This is Gulf Muhly, 2012
Eragrostis is native to much of the eastern half of the U S. As best as I can determine, Muhly and Love Grass are related but do not come from a common ancestor.
I had Eragostis in my garden before I knew its name. I dug it off the roadside. It finally died out because it was not in an ideal location. I may try again.
It has not been easy for me to stop considering grasses as forage, hay or weeds and start to think of them as other than either lawn or weedy in the garden.