Annuals. Leaf-blades flat. Inflorescence a lax or dense spike-like panicle. Spikelets (1-)2-5(-10)-flowered, all alike, the rhachilla produced or not; glumes subequal or unequal, keeled, with hyaline margins; lemmas usually a little longer than the glumes, 5-nerved with hyaline margins, acute or obtuse, with a straight or slightly curved awn from just below the bifid tip; callus obscure, glabrous or shortly hairy; stamens 3; stigmas 2.
A genus of about 10 species in temperate Eurasia and North Africa, introduced elsewhere; 3 species occur in Pakistan, 1 of them endemic to Kashmir.
Rostraria is similar to, and often included in Koeleria, but differs by its annual habit. Trisetaria also resembles Rostraria, but has a perfect, geniculate awn.