Trichoneura Andersson

Tufted annuals or perennials, with leafy often branching culms. Leaf-blades linear, usually flat, pointed; ligule membranous, truncate. Inflorescence open or contracted, composed of a number of racemes scattered along a central axis; racemes often stiff, the spikelets subsessile or shortly pedicelled, biseriate, overlapping or distant. Spikelets wedge-shaped, several-flowered, with the florets loosely imbricate, disarticulating between the florets; glumes 1-nerved, very narrow and tapering to a mucro or awn, membranous, subequal, usually as long as the spikelet and always clearly exceeding the lower lemmas, persistent; lemmas 3-nerved, membranous, rounded or lightly keeled, often pilose, conspicuously ciliate along the lateral nerves, bluntly 2-toothed with a fine straight awn arising from the sinus; palea ± equalling the lemma, often capitate-pilose between the keels. Caryopsis narrow, dorso-ventrally flattened, shallowly concavo-convex or plano-convex in cross-section.