The species is a tufted
deciduous perennial with elongated
rhizomes. It has erect
culms which are long. The leaf sheaths are tubular and closed; the
ligule is an
eciliate membrane. The leaf blades are flat, stiff, and long by wide. Their surface is
scabrous and
glabrous and the tip is attenuate. The
panicle is contracted, reaching in length. The
spikelets are
cuneate with one fertile
floret. The florets are on
pedicels. Both the lower and upper
glumes lack keels. They are membranous, ovate, long, and 5-veined. The
palea have 2-veined, ciliated keels while the fertile
lemma is keelless, lanceolate, with an acute apex and ciliated margins. The lemma is long with 7–9 veins. The flowers are fleshy, oblong, truncate, with two
lodicules and three
anthers. The fruit is a
caryopsis. ==References==