Tall perennial forming large clumps; culms 1–2 m. high, stout, erect.. Leaf-blades broadly linear to narrowly lanceolate, 20–60 cm. long, 10–50 mm. wide, conspicuously plicate, sometimes falsely petiolate.. Panicle narrowly lanceolate, 25–50 cm. long, erect, pagoda-like, with short stiff spreading branches and puberulous rhachis; bristles 3–15 mm. long.. Spikelets ovate, 3–3.5 mm. long, pallid, acute; lower glume 1/4–1/3, the upper 1/2–2/3 the length of the spikelet; lower floret sterile, its lemma thinly coriaceous, as long as or longer than the upper lemma, with a well-developed palea; upper lemma smooth.
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