Perennial with delicate, often tufted, erect or decumbent culms from a slender rhizome; culms 10–40(60) cm. long.
Panicle 1.5–7 cm. long, ovate, sparsely branched, the branches spreading at maturity.
Leaf laminae 2–6 cm. long and 2–6 mm. wide, flat, acute or acuminate.