couch grass

• couch, couch-grass, couchgrass

• (General American) IPA^(key): /ˈkaʊt͡ʃˌɡɹæs/
• (Received Pronunciation) IPA^(key): /ˈkaʊt͡ʃˌɡɹɑːs/

couch grass (uncountable)

1. A species of grass, Elymus repens, usually considered a weed.
   • 1942, Rebecca West, Black Lamb and Grey Falcon, Canongate 2006, p. 145:

     But the trouble was pervasive and deep-rooted as couch-grass.

   • 1974, GB Edwards, The Book of Ebenezer Le Page, New York 2007, p. 82:

     The old couple who had lived there hadn't been able to do much and the garden was a wilderness of couch-grass and dandelion.

• (Elymus repens): quick grass, quitch grass, quitch, dog grass, quackgrass, quitch grass, scutch grass, twitch, witchgrass

• couch grass on Wikipedia.Wikipedia
• Elymus repens on Wikispecies.Wikispecies
• Elymus repens at Grassbase