Spikelets in pairs in two rows on one side of a narrow-to broad-winged rachis, turned back to back, the first subsessile, the second pedicellate, the pedicel adnate to the rachis, the spikelets thus appearing solitary; first glume small, sometimes hyaline; second glume usually shorter than the fruit, acute; sterile lemma indurate, sulcate and often splitting down the middle at maturity, enclosing a well-developed palea and usually a staminate flower; fruit indurate, striate, with a few stiff hairs at the tip, the margins narrow, firm, not inrolled.
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