Inferior glume 1/8–1/4 length of spikelet, truncate to obtuse, the superior 3/4 to as long as spikelet.
Leaf laminae broadly linear to narrowly lanceolate, plicate, thin.
Spikelets 2–2.5 mm. long, narrowly elliptic.
Culms 50–200 cm. high.
Loosely tufted annual.
Superior lemma smooth.