Search Result for "quackgrass": 
Wordnet 3.0

NOUN (1)

1. European grass spreading rapidly by creeping rhizomes; naturalized in North America as a weed;
[syn: dog grass, couch grass, quackgrass, quack grass, quick grass, witch grass, witchgrass, Agropyron repens]



WordNet (r) 3.0 (2006):

quackgrass
    n 1: European grass spreading rapidly by creeping rhizomes;
         naturalized in North America as a weed [syn: dog grass,
         couch grass, quackgrass, quack grass, quick grass,
         witch grass, witchgrass, Agropyron repens]