Axonopus is a genus of grasses, commonly known as carpet grass, native to tropical and subtropical Americas, used for lawns, erosion control, and pasture due to its dense, mat-forming growth. Key species include A. compressus (broadleaf carpet grass) and A. fissifolius (common carpet grass), which are valued for their tolerance to shade, poor soils, and heavy grazing, though they can become weedy.