quack grass

noun

\ ˈkwak-

Definition of quack grass

: a European grass (Elytrigia repens synonym Agropyron repens) that is naturalized throughout North America and spreads by creeping rhizomes

— called also couch grass, quitch, twitch, witchgrass

Examples of quack grass in a Sentence

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There are many different types of weeds that can spoil a lush, green lawn: crabgrass, dandelions, white clover, quack grass, wood sorrel, bindweed, broad-leaf plantain, cinquefoil and creeping charley to name a few. — Joseph Truini, Popular Mechanics, "How to Get Rid of Lawn Weeds," 19 Apr. 2019 Buckwheat This fast-growing non-wheat crop is excellent at suppressing weeds like quack grass. — Sunset, "Top 10 Cover Crops for Your Fall Garden," 22 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quack grass.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Last Updated

5 May 2019

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Time Traveler for quack grass

The first known use of quack grass was circa 1818

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quack grass

noun

Medical Definition of quack grass

: a European grass of the genus Agropyron (A. repens) that is naturalized throughout North America and has roots and rhizome with diuretic properties

— called also couch grass, quitch, twitch, witchgrass