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Robust perennial 150-800 mm high; with rhizomes or stolons; basal leaf sheaths strongly keeled, flabellate. Leaf blade 100-350 x 3-6 mm; apex obtuse, sometimes narrowly so. Inflorescence digitate, racemes usually 2-5, 30-80 mm long, yellowish; spikelets overlap for most of their length. Spikelet 2-4 mm long, 2-flowered, rarely 3; lower glume 1.7-2.5 mm long; upper glume 2.75-3.50(-4.00) mm long; lowest lemma 2-3(-4) mm long, obovate-oblanceolate, hairy on the margins and keel, awn 4-11 mm long, callus pungent; second lemma 1.3-3.0 mm long, clavate, glabrous, awn 3-8 mm long; third lemma reduced to an awnless, clavate scale or absent; anther 0.5-1.0 mm long.
Spikelets 2(3)-flowered, 2-awned; inferior glume 1.8–2.5 mm long; superior glume 2.8–4 mm long; floret callus pungent; fertile lemma 3–3.8 mm long, obovate-oblanceolate in profile, ciliate towards the apex on the margins and keel, glabrous on the flanks, the awn 5–9 mm long; 2nd lemma clavate, glabrous, 1.2–3 mm long, with an awn 3–8 mm long, usually sterile but occasionally male or fertile and with a palea; 3rd lemma, when present, a small awnless clavate scale.
Robust perennial, rhizomatous and stoloniferous, up to 0.8 m high. Leaf blades 100-350 mm long, 3-6 mm wide, basal leaf sheaths strongly keeled. Spikelets 2-4 mm long. Spikes usually 4 or 5, yellowish, 30-80 mm long; spikelets coarse; lower glume 1.7-2.0 mm long; upper glume 2.75-3.50(-4.00) mm long; lowest lemma 2-3(-4) mm long, awns two, 4-11 mm long.
Shortly rhizomatous or stoloniferous caespitose perennial up to 80 cm tall, erect or ascending; lower leaf sheaths strongly keeled and flabellate; leaf laminas (6)10–20 cm × 1–3 mm, flat or folded, obtuse at the apex, sometimes narrowly so.
Inflorescence of 2–6 digitate racemes 3–9 cm long.
