Quitch grass, also known as couch grass or twitch grass, is a common weed found in gardens, lawns and other areas with moist soil. This persistent weed spreads quickly, making it difficult to control. However, there are several synonyms for Quitch grass that often confuse gardeners. Other names for Quitch grass include scutch grass, witchgrass, and devil's grass. It is important to know these synonyms in order to correctly identify and treat Quitch grass. Chemical herbicides are effective in controlling Quitch grass, but regular maintenance, including regular mowing and hand weeding, is also necessary to keep it under control.