"苦菜" meaning in Japanese

{
  "etymology_number": 1,
  "forms": [
    {
      "form": "苦菜",
      "ruby": [
        [
          "苦",
          "にが"
        ],
        [
          "菜",
          "な"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "苦菜",
      "ruby": [
        [
          "苦菜",
          "ニガナ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nigana",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "にがな",
        "2": "ニガナ"
      },
      "expansion": "苦(にが)菜(な) or 苦菜(ニガナ) • (nigana)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "toothed ixeridium, Ixeridium dentatum"
      ],
      "id": "en-苦菜-ja-noun-3QRLVi91"
    }
  ],
  "sounds": [
    {
      "ipa": "[ɲ̟iɡa̠na̠]"
    }
  ],
  "wikipedia": [
    "ja:苦菜"
  ],
  "word": "苦菜"
}

{
  "categories": [],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "soft-redirect",
  "redirects": [
    "野芥子"
  ],
  "senses": [
    {
      "id": "en-苦菜-ja-soft-redirect-47DEQpj8",
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɲ̟iɡa̠na̠]"
    }
  ],
  "wikipedia": [
    "ja:苦菜"
  ],
  "word": "苦菜"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese lemmas",
    "Japanese links with redundant wikilinks",
    "Japanese nouns",
    "Japanese terms spelled with fourth grade kanji",
    "Japanese terms spelled with third grade kanji",
    "Japanese terms with 2 kanji",
    "Japanese terms with IPA pronunciation",
    "Japanese terms with IPA pronunciation missing pitch accent",
    "Japanese terms with multiple readings",
    "Japanese terms with redundant sortkeys",
    "Pages with 2 entries",
    "Pages with entries"
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "苦菜",
      "ruby": [
        [
          "苦",
          "にが"
        ],
        [
          "菜",
          "な"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "苦菜",
      "ruby": [
        [
          "苦菜",
          "ニガナ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nigana",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "にがな",
        "2": "ニガナ"
      },
      "expansion": "苦(にが)菜(な) or 苦菜(ニガナ) • (nigana)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Entries using missing taxonomic name (species)"
      ],
      "glosses": [
        "toothed ixeridium, Ixeridium dentatum"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɲ̟iɡa̠na̠]"
    }
  ],
  "wikipedia": [
    "ja:苦菜"
  ],
  "word": "苦菜"
}

{
  "categories": [
    "Japanese terms with IPA pronunciation",
    "Japanese terms with IPA pronunciation missing pitch accent"
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "soft-redirect",
  "redirects": [
    "野芥子"
  ],
  "senses": [
    {
      "tags": [
        "no-gloss"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ɲ̟iɡa̠na̠]"
    }
  ],
  "wikipedia": [
    "ja:苦菜"
  ],
  "word": "苦菜"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "苦菜"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "苦菜",
  "trace": ""
}