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Annual or short-lived perennial; culms slender, 15–70(–100) cm. long, scrambling, often decumbent and rooting at the lower nodes.. Leaf-blades narrowly lanceolate, 3–11 cm. long, 3–10(–12) mm. wide, straight at the base, flat, membranous, glabrous to pilose, acute or acuminate.. Panicle broadly ovate, 4–16(–22) cm. long, sparsely branched, the branches slender, spreading at maturity.. Spikelets ovate, 2.5–3.5 mm. long, striate, pubescent, pale or dark olive-green, acuminate; lower glume as long as the spikelet, ovate, 5(–7)-nerved; upper glume ovate, 7-nerved, acute; lower lemma 5-nerved, sterile, its palea poorly developed; upper lemma pale, shining.
Annual or short-lived perennial; scrambling, trailing, decumbent, rooting at nodes; rhizome present or absent; culm to 1000 mm long. Leaf blade 30-110 x 3-10(-12) mm; ligule a fringed membrane. Inflorescence sparsely branched, usually spreading at maturity, sometimes contracted, branches naked for a long distance, with 5 spikelets crowded at the apex; exserted from uppermost leaf. Spikelet 2.5-3.5(-4.0) mm long, acuminate, glabrous or pubescent; lower glume as long as spikelet, 3-5-nerved; upper glume 7-nerved; lower floret sterile, lemma 5-nerved, palea reduced; upper lemma pale, shiny; anthers 1.2-1.5 mm long.
Short-lived perennial or annual, scrambler (trailing, decumbent and rooting at nodes). Culms up to 1 m long. Leaf blades 30-110 mm long, 3-10(-12) mm wide. Spikelets 2.5-3.5(-4.0) mm long. Inflorescence sparsely branched, usually spreading at maturity, sometimes contracted, branches naked for a long distance, with 2-5 spikelets crowded at apex, exserted from uppermost leaf; spikelets acuminate, pubescent, lower glume as long as spikelet, 5(-7)-nerved; upper glume 7-nerved; lower floret sterile, lemma 5-nerved, palea reduced; female-fertile (upper) lemma pale and shiny.
Spikelets 3–4 mm. long, ovate, pilose or glabrous, acuminate; inferior glume as long as the spikelet, 3(5)-nerved; superior glume 7-nerved; inferior lemma 5-nerved, its palea poorly developed, sterile; superior lemma and palea pallid.
Panicle 4–8(20) cm. long, broadly ovate, glabrous or pilose, sparsely branched, the branches spreading at maturity.
Annual or short-lived perennial with delicate trailing culms 15–70 cm. long, from a slender rhizome.
Leaf laminae 2.5–8 cm. long and 2–9 mm. wide, narrowly lanceolate, flat, acuminate.
