Perennial; culms 45–150 cm. long, scrambling.. Leaf-blades lanceolate to narrowly ovate, 6–10 cm. long, 15–25 mm. wide, cordate or abruptly tapering at the base, glabrous, scabrid or pilose with tubercle-based hairs, cross-veins present, acuminate.. Panicle oblong, 15–30 cm. long, much branched.. Spikelets ovate, 2.5–3 mm. long, scaberulous; lower glume 1/2–2/3 the length of the spikelet, ovate, 0–1(–3)-nerved, blunt; upper glume ovate, 5-nerved, acute or acuminate; lower lemma 5-nerved, ♂, its palea well developed, or sterile and its palea poorly developed; upper lemma pale, shining.
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