"sad tree" meaning in English

{
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    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "arbor trīstis"
      },
      "expansion": "Latin arbor trīstis",
      "name": "bor"
    }
  ],
  "etymology_text": "Calque of its Latin name, Latin arbor trīstis.",
  "forms": [
    {
      "form": "sad trees",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sad tree (plural sad trees)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Olive family plants",
          "orig": "en:Olive family plants",
          "parents": [
            "Lamiales order plants",
            "Plants",
            "Shrubs",
            "Trees",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The night-blooming jasmine."
      ],
      "id": "en-sad_tree-en-noun-gTCCUvgM",
      "links": [
        [
          "night-blooming jasmine",
          "night-blooming jasmine"
        ]
      ]
    }
  ],
  "word": "sad tree"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "arbor trīstis"
      },
      "expansion": "Latin arbor trīstis",
      "name": "bor"
    }
  ],
  "etymology_text": "Calque of its Latin name, Latin arbor trīstis.",
  "forms": [
    {
      "form": "sad trees",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sad tree (plural sad trees)",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "The night-blooming jasmine."
      ],
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        [
          "night-blooming jasmine",
          "night-blooming jasmine"
        ]
      ]
    }
  ],
  "word": "sad tree"
}