Plants rhizomatous. Culms 90-150 cm tall, 2-4 mm thick. Basal leaves bladeless or with reduced blades; cauline sheaths mostly glabrous, but pilose at the collar; ligules of cauline leaves 2-3 mm, ciliate on the erose margin; cauline blades to 35 cm long, 8-20 mm wide, pilose on both surfaces, margins ciliate near the base, cilia papillose-based. Panicles 12-20 cm long, 2-4 cm wide, shortly exserted; rachises glabrous, smooth; primary branches 2-6 cm; rames 2-3.5 cm. Spikelets 4.5-5.5 mm. Lower glumes pilose throughout, 5-9-veined; upper glumes of the sessile spikelets pilose on the margins, those of the pedicellate spikelets pilose throughout; callus hairs about 1/4 as long as the spikelets; awns 0.7-1.2 cm; anthers of the sessile spikelets about 2 mm, those of the pedicellate spikelets about 3 mm. 2n = 40, 42.
"decumbent" is not a number."elongated" is not a number.