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Culms 0.1–0.6 m high, with nodes straight or geniculate. Leaf blades 250 mm long, 3–6 mm wide. Inflorescences with 200 spikelets. Bisexual spikelets 3.5–5 mm long, with 5–7 florets; glumes shorter than spikelet, shorter than basal lemmas, pale brown; lower glume 2–2.2 mm long; lemma 1.1–1.5 mm long, with 1.2–2.2 mm long awn, glabrous, scabrous or prickly hairy; palea elliptic to ovate, 1–1.3 mm long, glabrous between keels; palea flanks developed into wings of variable width, triangular and acute or wing-like and rounded, usually reflexed upwards, and when big, enclosing the floret in the next series above; anthers 0.2–0.4 mm long. Caryopsis 0.5–0.9 mm long.
Annual; culms 5–60 cm. high, erect.. Leaf-blades up to 25 cm. long and 4 mm. wide.. Panicle 2–30 cm. long, the glomerules (3–)5–7 mm. in diameter, often confluent, rarely elongated into short side branches, the bracts scarcely exceeding the spikelets.. Lower glume 1.5–2 mm. long, the upper 1.5–2.5 mm. long; lemma 2–2.5(–3) mm. long (including awn), drawn out in a slender awn of variable length but commonly about as long as the body of the lemma; palea-wings very variable in size and shape; lodicules 1–2; anthers 1–3, 0.3 mm. long.. Fig. 45, p. 136.
Glumes 1.8–2.3 mm long, lanceolate, scabrid; lemmas (1)2–2.5(3.2) mm long (including awn), broadly elliptic, drawn out into a slender awn 1–2.5 times as long as the body of the lemma; palea wings inconspicuous, enfolded by the lemma.
Inflorescence 3–30 cm long, the glomerules ovoid to cylindrical, 5–7 mm in diameter, often confluent, the bracts scarcely exceeding the spikelets.
Annual up to 60 cm tall, erect or geniculately ascending; leaf lamina up to 30 cm × 4 mm, glabrous.
Annual, 15–60 cm. high
