Alopecurus, or foxtail grass, is a common and widespread genus of plants in the grass family. It is common across temperate and subtropical parts of Eurasia, northern Africa, and the Americas, as well as naturalized in Australia and on various islands. Numerous species once considered part of Alopecurus but now regarded as better suited to other genera: Agrostis Chaetopogon Cornucopiae Crypsis Koeleria Milium Muhlenbergia Pennisetum Perotis Phleum Polypogon Rostraria Setaria Tribolium