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Perennial. Leaf-blades linear; ligule scarious, adnate to sheath-auricles. Inflorescence composed of paired racemes subtended by spatheoles and forming a scanty false panicle; racemes short, arranged end to end with the upper borne upon a very long raceme-base, each raceme with 2 homogamous pairs; pedicels linear. Sessile spikelet terete; callus pungent, applied obliquely; lower glume subcoriaceous with a herbaceous beak 2–3 mm. long, rounded on back and sides; upper glume awnless; lower floret reduced to a hyaline lemma; upper lemma hyaline, bidentate, passing between the teeth into an awn with pubescent column. Caryopsis narrowly oblong, Pedicelled spikelet ♂, without a distinct callus.