Annuals or perennials. Inflorescence a many-flowered, usually contracted to spike-like, panicle. Spikelets 1-flowered, laterally flattened, falling entire at maturity along with a basal stipe; floret bisexual. Glumes subequal, 1-nerved, membranous; apex entire to shortly 2-lobed, unawned or awned from the sinus. Lemma obscurely 5-nerved, hyaline, shorter than the glumes, awned or awnless. Palea 2-nerved and 2-keeled. Worldwide: 18 species in warm and temperate regions of the world and on tropical mountains. Botswana: 1 taxon. |
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