"fen nettle" meaning in English

{
  "forms": [
    {
      "form": "fen nettles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fen nettle (plural fen nettles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
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          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Nettle family plants",
          "orig": "en:Nettle family plants",
          "parents": [
            "Rosales order plants",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Urtica dioica subsp. galeopsifolia, a herbaceous perennial plant found in Europe, having long narrow leaves and covered in fine, dense, non-stinging hairs."
      ],
      "id": "en-fen_nettle-en-noun-4ALCwyHM",
      "links": [
        [
          "herbaceous",
          "herbaceous"
        ],
        [
          "perennial",
          "perennial"
        ],
        [
          "plant",
          "plant"
        ],
        [
          "Europe",
          "Europe"
        ]
      ],
      "synonyms": [
        {
          "word": "stingless nettle"
        }
      ],
      "wikipedia": [
        "fen nettle"
      ]
    }
  ],
  "word": "fen nettle"
}

{
  "forms": [
    {
      "form": "fen nettles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fen nettle (plural fen nettles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
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        "English nouns",
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        "en:Nettle family plants"
      ],
      "glosses": [
        "Urtica dioica subsp. galeopsifolia, a herbaceous perennial plant found in Europe, having long narrow leaves and covered in fine, dense, non-stinging hairs."
      ],
      "links": [
        [
          "herbaceous",
          "herbaceous"
        ],
        [
          "perennial",
          "perennial"
        ],
        [
          "plant",
          "plant"
        ],
        [
          "Europe",
          "Europe"
        ]
      ],
      "wikipedia": [
        "fen nettle"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "stingless nettle"
    }
  ],
  "word": "fen nettle"
}