Open English Wordnet
Nouns
(n)witchgrass, witch grass, old witchgrass, old witch grass, tumble grass, Panicum capillareNorth American grass with slender brushy panicles; often a weed on cultivated land
(n)dog grass, couch grass, quackgrass, quack grass, quick grass, witch grass, witchgrass, Agropyron repensEuropean grass spreading rapidly by creeping rhizomes; naturalized in North America as a weed