Echinochloa crusgalli is a common weed found in agricultural fields and lawns. It is also known as barnyard grass, cockspur, and Japanese millet. Barnyard grass is one of the most widely distributed weeds in the world, and it can grow up to 6 feet tall. This invasive plant can crowd out crops and other desirable vegetation, making it a nuisance for farmers and homeowners alike. Cockspur is a member of the grass family and is native to Asia. It has several synonyms, including Panicum crus-galli, Echinochloa colona, Echinochloa oryzicola, and Oplismenus crus-galli. Despite its many names, this weed is best controlled through proper management and control techniques.