Plants with horizontal or ascending rhizome, erect or decumbent or ascending. Culms 30–75 cm high. Leaves auriculate with auricular setae or non-auriculate; ligule 0.3–0.5 mm long, ciliolate; blade flat or involute, usually short, 2.5–25 cm long, 2–8 mm wide, abaxially glabrous or scabrous to hirsute. Inflorescences paniculate or racemose, 7–19 cm long. Spikelets 15–50 mm long; rachilla slightly elongated between glumes. Glumes equal to unequal; lower glume 0.3–3.8 mm long, keeled; upper glume 0.3–3.7 mm long, acute, nerveless or 1-nerved. Sterile florets: lemmas with nerves distinctly raised, glabrous or scabrous; lemma awns shorter than lemma body to more than twice body length, 6–30 mm long; lower lemma stipitate, bearded at base; upper lemma 8–15 mm long. Bisexual floret: lemma 5.5–11 mm long, 5–7-nerved, glabrous or scabrous; palea keeled, nerveless or 1-nerved, with nerves glabrous or scabrous; stamens (2–) 4 (–6).
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