couch grass(redirected from couch grass + Balansiaspp)
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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.]
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
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]