Tufted annuals or perennials. Ligule membranous. Inflorescence a loose or contracted panicle. Spikelets 1(–2)-flowered; glumes 2, persistent, equal or unequal, mostly exceeding lemma, 1-nerved, keeled; lemma 3–5-nerved, firmer than glumes, hardened at maturity, acute or obtuse, sometimes 2- or 4-toothed at apex, awned dorsally, sometimes the awn subterminal and minute, or rarely, unawned; palea firmly membranous, subequal to lemma; rachilla usually produced into a plumose or glabrous bristle, absent in a few species.
About 110 species from temperate, mostly Southern Hemisphere countries; 35 species in Australia, all but 1 endemic.
Note that in keys and descriptions spikelet lengths do not include the awns.
Vickery, J.W. (1940). A revision of the Australian species of Deyeuxia Clar. ex Beauv. with notes on the status of the genera Calamagrostis and Deyeuxia., Contributions from the New South Wales Herbarium 1(2): 43-82.
Weiller, C.M., Walsh, N.G., Thompson, I.R. (2009). Deyeuxia, Flora of Australia 44A: 190-212.