Culms rooting from lower nodes, up to 3 m long, smooth, glabrous, much branched in upper part, branches flexuous. Leaf sheaths usually glabrous; leaf blades flat, 10–30 × 0.5–2 cm, attenuate to a setaceous apex; ligule 1–2 mm. Spathate panicle up to 50 cm, branches very slender with spaced spathes subtending small clusters of spatheoles; spatheole ovate in side view, herbaceous, multiveined, up to 1 cm, often tipped by a fimbriate ligule and narrow vestigial blade; peduncle 1–1.5 mm; raceme 7–10 mm; pedicels oblong, 3–4 mm, glabrous or ciliate upward. Sessile spikelet 4–5 mm; lower glume narrowly elliptic-lanceolate; lower lemma as long as or shorter than lower glume; upper lemma deeply 2-lobed with 4–12 mm awn, or entire to emarginate and awnless. Pedicelled spikelets lanceolate, awnless. Fl. and fr. Jul–Dec.
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