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Perennials. Leaf-blades linear or rarely terete; ligule membranous. Inflorescence terminal, composed of subdigitate (rarely solitary or with a long central axis), ± flattened racemes; internodes and pedicels clavate to inflated. Sessile spikelet flat or slightly convex across the back (rarely concave); callus truncate, with or without a central peg; lower glume membranous to subcoriaceous, 2-keeled, winged or not; lower floret ♂ or reduced to a hyaline lemma; upper lemma entire and awnless. Caryopsis oblong, dorsally compressed. Pedicelled spikelet usually smaller than the sessile, sometimes vestigial or with an elongated callus.
Sessile spikelet flat or slightly convex (rarely concave) across the back; callus truncate, flat or with a central peg; inferior glume membranous to coriaceous, smooth or muricate, the keels winged or not; inferior floret male, or barren and then with or without a palea; superior lemma entire and awnless.
Pedicelled spikelet usually resembling the sessile spikelet but mostly smaller and rarely bisexual, occasionally vestigial, rarely with an elongated callus (not in the Flora Zambesiaca area); pedicel free, resembling the internode.
Inflorescence terminal, usually of ± flattened digitate racemes, these rarely single or paniculate, often tardily disarticulating; rhachis internodes columnar to inflated.
Ligule membranous; leaf laminas setaceous or flat.
Caryopsis oblong, dorsally compressed.
Perennial.
