Definitions for "Couch grass"
See Quitch grass.
Grass often regarded as a weed, with long, creeping roots.
Agropyron repens, a perennial grass that is an invasive weed in lawns and gardens. It is also called Dog Grass, Twitchgrass, Witch Grass, Quitch Grass and Quackgrass or Quack Grass.
Helps to remove toxins