grasses, tufted or stoloniferous, culms geniculate, often ascending.
Leaf-blades lanceolate, firm, ligules absent or ring of bristles. Inflorescence
of few-flowered panicle, spikelets single or in clusters. Spikelets narrowly
elliptic or oblong, awnless, 2-flowered, falling entire; lower floret neuter or
staminate, upper floret bisexual; glumes equal, glabrous, awnless, lower glume
3-nerved; upper glume 3-5 nerved; lemma of upper floret coriaceous with narrow,
hyaline margins, awnless to mucronate, 3-5 nerved; palea similar to lemma in
texture, 2-nerved. Lodicules 2, fleshy. Stamens 3. Caryopsis compressed