Hi guys, I've been trying to identify a grass and can't find it anywhere in pictures or descriptions. I'm sorry - but I don't have an immediate picture available. Hopefully this description will ring a bell. - Northeast / NY (but not necessarily native) - Forms intense clumps about the size of your fist. - Very short - **Very** thin blades, almost like stiff threads or thin wires, but hundreds of them. You could thread one through the eye of a needle. - Very intense / matted root network - dethatching is difficult, and pulls the whole clump. - When it browns, there's lots of thatch. We've had it grow under some tall oak trees. It was green this spring, then it died and formed brown clumps. I could just pull each up with a dethatching rake, but generally, the whole clump comes with it and the root network is a matted mess of tangled, thin roots that are impossible to pull up. I thought it might be a form of fine fescue, but it doesn't look like anything I've seen in pictures. About a 20x15 area of the side of our house is all of this type of grass, and it's mixed in elsewhere - I'm tempted to yank it all up since it's already dying back.