"sea couch grass" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "1952 May, Frank Jeffares, “Irish Railway Coastal Defence”, in Railway Magazine, page 304:",
          "text": "A secondary protective device used near Greystones consists in the planting of bent grass and sea couch grass to aid reclamation of certain areas. Unfortunately, bent grass lends itself to the formation of dunes, which are very vulnerable. Sea couch grass has proved the best so far.",
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      ],
      "glosses": [
        "Elymus pungens, a species of couch grass."
      ],
      "id": "en-sea_couch_grass-en-noun-J~LIwgcH",
      "links": [
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          "couch grass",
          "couch grass"
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      "tags": [
        "uncountable"
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  "word": "sea couch grass"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "1952 May, Frank Jeffares, “Irish Railway Coastal Defence”, in Railway Magazine, page 304:",
          "text": "A secondary protective device used near Greystones consists in the planting of bent grass and sea couch grass to aid reclamation of certain areas. Unfortunately, bent grass lends itself to the formation of dunes, which are very vulnerable. Sea couch grass has proved the best so far.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Elymus pungens, a species of couch grass."
      ],
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        "uncountable"
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  "word": "sea couch grass"
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