You're asking what pig's-tail grass looks like, right? Grass that has strips of ribs on the stem and more branches. Pig's-tail grass is usually about 30 to 50 centimeters tall, with strips of ribs on the stem and more branches, the rhizome grows horizontally or obliquely, with most of the nodal fibrous roots, and the leaves are basal 30-120 centimeters long and 3-10 millimeters wide, with an acuminate apex and an enlarged base that becomes sheathing, and the sheath margins membranous, and the scape is terete, and the outer whorl of the perianth segments is smaller, sepal-like, and green.