Polevansia

Perennial, rhizomatous and stoloniferous, decumbent, mat-forming, rooting at nodes. Leaf blade linear, expanded, tapering to an obtuse apex; sheaths chartaceous; ligule a fringed membrane, minutely fimbriate. Inflorescence rigid, oblong, of a number of short, dense, 1-sided, spike-like racemes, appressed, arranged alternately on central axis; rachis branches and pedicels triangular in cross section; spikelets solitary, pedicelled, lower glume adaxial to rachis. Spikelet 3.5-4.5 mm long, dorsiventrally compressed, disarticulating above glumes; glumes unequal, dissimilar, glabrous, awnless; lower glume lanceolate to narrowly ovate, subhyaline, nerveless, apex obtuse, truncate or emarginate; upper glume lanceolate, subcoriaceous, 1-nerved, slightly keeled towards apex, apex obtuse, as long as spikelet. Floret 1, bisexual; lemma subcoriaceous, narrowly lanceolate-oblong, entire, acute, not keeled, 3-nerved, lateral nerves hairy on lower half, very small mucro present, awnless; callus short, obtuse, shortly hairy; palea narrowly oblong-elliptic, 2-keeled, subhyaline, subcoriaceous, apex truncate, margins hairy on lower half. Lodicules 2, free, small, truncate. Stamens 3. Ovary oblong; styles distinct, plumose.