"buttonwillow" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "button",
        "3": "willow"
      },
      "expansion": "button + willow",
      "name": "compound"
    }
  ],
  "etymology_text": "From button + willow.",
  "forms": [
    {
      "form": "buttonwillows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "buttonwillow (plural buttonwillows)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Madder family plants",
          "orig": "en:Madder family plants",
          "parents": [
            "Gentianales order plants",
            "Shrubs",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A shrub with round flower heads found near water in California, the Eastern US, and Central America, Cephalanthus occidentalis."
      ],
      "id": "en-buttonwillow-en-noun-Dkn0LYig",
      "links": [
        [
          "flower heads",
          "flower heads"
        ]
      ],
      "raw_glosses": [
        "(US) A shrub with round flower heads found near water in California, the Eastern US, and Central America, Cephalanthus occidentalis."
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "word": "buttonwillow"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "button",
        "3": "willow"
      },
      "expansion": "button + willow",
      "name": "compound"
    }
  ],
  "etymology_text": "From button + willow.",
  "forms": [
    {
      "form": "buttonwillows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "buttonwillow (plural buttonwillows)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "American English",
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "Entries using missing taxonomic name (species)",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Madder family plants"
      ],
      "glosses": [
        "A shrub with round flower heads found near water in California, the Eastern US, and Central America, Cephalanthus occidentalis."
      ],
      "links": [
        [
          "flower heads",
          "flower heads"
        ]
      ],
      "raw_glosses": [
        "(US) A shrub with round flower heads found near water in California, the Eastern US, and Central America, Cephalanthus occidentalis."
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "word": "buttonwillow"
}