Agrostis scabra is a common species of grass known by the common names hair grass, rough bent, rough bent grass, winter bent grass, and ticklegrass. A tumbleweed, It is a bunchgrass native to Asia and much of North America, and widely known elsewhere as an introduced species. It occurs in most of the United States except parts of the Southeast and most of Canada except for the farthest northern regions. It can be found in Mexico and California, and across Alaska to far eastern Asia as far south as Korea.