"black birch" meaning in English

{
  "forms": [
    {
      "form": "black birches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "black birch (plural black birches)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Birch family plants",
          "orig": "en:Birch family plants",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A tree of the species Betula lenta, with a dark bark resembling a cherry tree's and an aromatic bark and sap used for birch beer."
      ],
      "id": "en-black_birch-en-noun-vHo9hg6J",
      "links": [
        [
          "Betula lenta",
          "Betula lenta#Translingual"
        ],
        [
          "birch beer",
          "birch beer"
        ]
      ],
      "synonyms": [
        {
          "word": "cherry birch"
        },
        {
          "word": "sweet birch"
        }
      ]
    }
  ],
  "word": "black birch"
}

{
  "forms": [
    {
      "form": "black birches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "black birch (plural black birches)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Birch family plants"
      ],
      "glosses": [
        "A tree of the species Betula lenta, with a dark bark resembling a cherry tree's and an aromatic bark and sap used for birch beer."
      ],
      "links": [
        [
          "Betula lenta",
          "Betula lenta#Translingual"
        ],
        [
          "birch beer",
          "birch beer"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "cherry birch"
    },
    {
      "word": "sweet birch"
    }
  ],
  "word": "black birch"
}