couch grass

a European perennial grass (Agropyron repens) that spreads rapidly by its underground stems and is a troublesome weed in North America; quack grass

Origin: var. of quitch

See couch grass in American Heritage Dictionary 4

noun
A Eurasian grass (Agropyron repens) that has whitish-yellow root stocks and has become a troublesome weed in the New World. Also called quack grass, witch grass.

Origin:

Origin: Alteration of quitch grass

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