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DescriptionPerennials (in ours). Leaves: lamina linear; ligule membranous. Inflorescence of 1-20 ± digitate, conspicuously hairy racemes, bearing pairs of spikelets, those of each pair alike. Spikelets dorsally flattened; callus obtuse; lower glume cartilaginous, often obtuse or truncate, upper glume awnless; lower floret reduced to a lemma; upper lemma hyaline, 2-dentate or 2-fid with an awn from the sinus.