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Spikelets paniculate or arranged on one-sided racemes or raceme-like branches; first glume acuminate, often nearly as long as the spikelet; second glume and sterile lemma subequal, pointed beyond the fruit, usually acuminate; fruit acute or subacute, the margins of the lemma usually flat, the rachilla disarticulating at the base of the segment, remaining attached to the fruit as a short stipe, this bear-ing on either side membranaceous appendages adnate to the base of the lemma, the appendages or wings often much reduced or indicated only by scars. Annuals or perennials of varying habit with relatively broad flat blades and terminal and axillary inflorescences.
