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A Eurasian grass (Elymus repens syn. Agropyron repens) that has whitish-yellow root stocks and is a weed of North American cereal crops. Also called quack grass, witchgrass.
[Alteration of quitch grass.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
couch grass(kaʊtʃ; kuːtʃ)
(Plants) a grass, Agropyron repens, with a yellowish-white creeping underground stem by which it spreads quickly: a troublesome weed. Sometimes shortened to: couch Also called: scutch grass, twitch grass or quitch grass
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
couch′ grass`(kaʊtʃ, kutʃ)
any of various grasses that have rapidly spreading underground stems and are troublesome weeds. Also called quitch.
[1570–80; couch, variant of quitch]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||couch grass - European grass spreading rapidly by creeping rhizomes; naturalized in North America as a weed|
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