Echinochloa colona, commonly known as jungle rice, deccan grass, or awnless barnyard grass,[1] is a type of wild grass originating from tropical Asia. It was formerly classified as a species of Panicum. It is the wild ancestor of the cultivated cereal crop Echinochloa frumentacea, sawa millet.[2] Some taxonomists treat the two taxa as one species, in which case the domesticated forms may also be referred to as E. colona.