Does anyone know what this is? It has invaded part of my yard. It sends out runners like a warm season grass, was thinking maybe bermuda but it doesn't really look like it. Thought it might be a weed so sprayed it with 2-4d and that didn't kill it so makes me think it's some kind of grass. Not the best picture but under me holding it you can see it on the ground as well. Also I live in North Carolina with a zoysia lawn.