Decumbent perennial up to 1000 mm high; rhizomatous; culms geniculate, branched. Leaf blade 50-100 x 5-15 mm, linear-lanceolate, constricted at base, acutely acuminate. Inflorescence 70-150 mm long; pedicel terete. Spikelet 2.2-2.5 x 1 mm, dull green; upper glume 2.5 mm long; upper lemma hairy; anthers 0.5 mm long.
Perennial, rhizomatous, up to 1 m high. Leaf blades 50-100 mm long, 5-15 mm wide, linear-lanceolate, constricted at base, point acutely acuminate. Culms erect, geniculate and branched. Spikelets 2.2-2.5 mm long, 1 mm wide. Inflorescence 70-150 mm long; spikelets dull green; upper glume 2.5 mm long.