Agropyron repens, quitch grass, couch grass, wheat-grass, shelly-grass, knot-grass, devils-grass, scutch-grass, quick grass, twitch-grass, blue-point, pond-grass, quickens, stroil, wickens, sear-grass, Colorado blue-grass
Quackgrass is a common grassy weed of turfed areas. Quackgrass is a perennial and can often be spotted by its dull blue-green appearance. Because quackgrass spreads by rhizomes (underground stems) it responds very well to cultivation practices. It is common to have quackgrass contamination in unscreened topsoil. Each rhizome section has the ability to produce a new plant.