Bromus is a large genus of the grass family (Poaceae). Estimates in the scientific literature of the number of species have ranged from 100 to 400, but plant taxonomists currently recognize around 160–170 species. They are commonly known as bromes, brome grasses, cheat grasses or chess grasses.
Bromus inermis is a species of the true grass family (Poaceae). This bunchgrass is native to Europe.
Drooping brome or cheat grass, Bromus tectorum, is a grass native to Europe, southwestern Asia and northern Africa.