Inferior glume less than 0.5 mm long, broadly obtuse to truncate.
Superior lemma granulose, mucronulate, shorter than spikelet.
Inferior lemma with a hyaline groove down the midline.
Spikelets 3.5–4 mm. long, broadly elliptic, glabrous.
Culms 20–60 cm. high, ascending.
Annual.