witchgrass

1. European grass spreading rapidly by creeping rhizomes
    naturalized in North America as a weed

    Synonym: dog grass couch grass quackgrass quack grass quick grass witch grass Agropyron repens

2. North American grass with slender brushy panicles
    often a weed on cultivated land

    Synonym: witch grass old witchgrass old witch grass tumble grass Panicum capillare