Trachypogon

Long-pedicelled spikelet falling separately, not noticeably compressed, somewhat terete; glumes +/- equal, dissimilar, awnless; lower glume firmly chartaceous to coriaceous, glabrous to hairy, finely 2-keeled upwards, margins inflexed, very narrow, obscurely nerved; upper glume thinner, grooved on either side of rounded keel. Florets 2, lower floret sterile, reduced to a lemma, hyaline, 2-nerved, ciliate or ciliolate upwards, awnless; upper floret bisexual; lemma stipitiform, less firm than glumes (hyaline at base), passing into a flexuous or geniculate, hairy awn; callus pungent to acute, densely hairy, obliquely attached to pedicel; palea minute, hyaline or 0. Lodicules 2, small, glabrous. Stamens 3. Ovary glabrous; styles terminal, plumose. Caryopsis terete. x= 5, 10 (polyploidy).