couch-grassとは 意味・読み方・使い方

発音

• (General American) IPA: /ˈkaʊt͡ʃˌɡɹæs/
• (Received Pronunciation) IPA: /ˈkuːt͡ʃɡɹɑːs/

名詞

couch grass (uncountable)

1. A grass of species Elymus repens, usually considered a weed.

   Synonyms: dog grass; quackgrass; quicken (Britain, regional); quick grass; quitch; quitch grass; scutch grass; twitch; witchgrass

   • 1841, Jesse Buel, The Farmers' Instructor. Consisting of Essays, Practical Directions, and Hints for the Management of the Farm and the Garden. Originally Published in the Cultivator; Selected and Revised for the School District Library‎, volume 1, Harper and Brothers, page 134:

     The roots of plants, disengaged from the soil in the process of tilling and cleaning it, are also employed as a vegetable manure. Some of these, however, as the couch grass, being very vivacious, would readily spring again: and therefore it is necessary that their vegetative powers be destroyed, which may be done by mixing them with lime, and forming in this way a compost. Many farmers, however, to save time, or to prevent the risk of the plants springing again, burn them in little heaps upon the ground at the time of their being collected, and spread the ashes upon the surface. This may be sometimes convenient, but the effect is, that the principal nutritive part of the plant is dissipated, and nothing left but the carbonaceous, earthy, and other insoluble matter. —Low's Elements of Practical Agriculture.

   • 1942, Rebecca West, Black Lamb and Grey Falcon, Canongate, published 2006, page 145:

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

   • 1974, GB Edwards, The Book of Ebenezer Le Page, New York, published 2007, page 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.

派生語

• sea couch grass

Further reading

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