Annual. Culms slender, prostrate and mat-forming, rooting at lower nodes, 10–20 cm tall. Leaf sheaths loose, glabrous or upper margins ciliolate; leaf blades soft, lanceolate, 1–3 × 0.2–0.5 cm, glabrous or hirtellous along veins; ligule hairs 0.1–0.5 mm. Panicle linear, loosely spiciform, 3–8 × 0.5–1 cm, spike-lets borne on short erect branches. Spikelets green or often purplish, 2–3 mm; rachilla internode 0.6–0.8 mm; glumes broadly ovate, herbaceous with membranous margins, lower glume 0.9–1.2 mm, 1–3(–5)-veined, upper glume ca. 1.5 mm, 5–7-veined; lemmas lanceolate, lower lemma 2–2.3 mm, glabrous or puberulous, lower palea equal to lemma; upper lemma 1.6–1.7 mm, pubescent below middle on center back and margins. Anthers 2–3, ca. 0.3 mm. Caryopsis brown at maturity, ca. 1.2 mm. Fl. and fr. Sep–Dec.
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