Annual or perennial grasses, culms erect or
decumbent. Leaf-blades convolute to lanceolate. Inflorescence of irregular
racemes, these digitate or in whorls on a common axis, each with a slender
unilateral rachis. Spikelets ovate-elliptic, paired or clustered, lower glume
shorter than the spikelet, acute to acuminate, 3-nerved, upper glume equalling
the spikelet, 5-7 nerved, ciliate along margins; lower floret staminate, lemma
herbaceous; upper lemma crisply chartaceous, margins inrolled, shortly awned,
upper palea acute, flaps basally auriculate. Caryopsis ellipsoid.