Avena
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Avena is a genus of 10-15 species of grasses, native to Europe, Asia and northwest Africa.
One species, the Oat (A. sativa) is of major commercial importance as a cereal grain. Several of the other species are nuisance weeds in cereal crops, as, being grasses like the crop, they cannot be selectively removed; any herbicide that would kill them would also damage the crop.
Avena species, including cultivated oats, are used as food plants by the larvae of some Lepidoptera species including Rustic Shoulder-knot and Setaceous Hebrew Character.
Avena is also the Spanish word for oatmeal
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