Spikelets 2–2.5 mm. long, ovate-elliptic, glabrous, acute or apiculate; inferior glume 1/3–1/2 the length of the spikelet, broadly ovate, 3-nerved, acute; superior glume ovate, 7-nerved, acute; inferior lemma ovate, 7-nerved, sterile, its palea absent; superior lemma and palea dark, glossy.
Panicle 5–20 cm. long, ovate, sparsely to moderately branched, the branches delicate, ascending or spreading.
Slender, glabrous or sparsely pilose annual with erect culms 25–60 cm. high.
Leaf laminae 7–25 cm. long and 2–6 mm. wide, linear, acuminate.