| + | Spikelets 1-fld.; glumes about equal, acute; lemma shorter and more delicate than the glumes, sometimes awned from the back, palea usually shorter than the lemma, often small or wanting.—Species about 100, distributed over the entire world, especially in the north temperate zone. The genus comprises several forage and lawn grasses and a few ornamental, the panicles being used for bouquets. A nebulosa is excellent for dry bouquets. A. elegans of gardens is an Aira. |