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Annuals or perennials. Leaf-blades narrow. Inflorescence an open or contracted, rarely spiciform panicle. Spikelets 4-or more flowered, the florets well exserted from the glumes, laterally compressed; glumes narrowly lanceolate, subequal, 1-nerved, mostly bidentate and aristulate; lemmas rounded on the back, scarious-membranous, 3-nerved, hairy on the side nerves, 3-lobed and 3-awned, the central lobe 2-toothed and awned from the sinus, the laterals awned from the inner side; awn slender, straight; palea a little shorter than the lemma.
Spikelets 4-or more flowered, the florets well exserted from the glumes, laterally compressed, disarticulating above the glumes and between the florets; glumes membranous, narrowly lanceolate, subequal, 1-nerved, mostly bidentate and aristulate; lemmas keeled, scarious-membranous, 3-nerved, hairy on the lateral nerves, 3-lobed and 3-awned at the apex, the central lobe 2-toothed and awned from the sinus, the laterals lobed on the inner side; awns slender, ± straight.
Inflorescence an open or contracted, rarely spiciform panicle.
Caryopsis linear, trigonous in section.
