"Baltic rush" meaning in English

{
  "forms": [
    {
      "form": "Baltic rushes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Baltic rush (plural Baltic rushes)",
      "name": "en-noun"
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
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          "source": "w"
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          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Rushes",
          "orig": "en:Rushes",
          "parents": [
            "Commelinids",
            "Water plants",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
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          "source": "w"
        }
      ],
      "glosses": [
        "A widespread Eurasian and North American species of rush, Juncus balticus"
      ],
      "id": "en-Baltic_rush-en-noun-cOFRcGA7",
      "links": [
        [
          "species",
          "species"
        ],
        [
          "rush",
          "rush"
        ]
      ]
    }
  ],
  "word": "Baltic rush"
}

{
  "forms": [
    {
      "form": "Baltic rushes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Baltic rush (plural Baltic rushes)",
      "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",
        "Entries using missing taxonomic name (species)",
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        "en:Rushes"
      ],
      "glosses": [
        "A widespread Eurasian and North American species of rush, Juncus balticus"
      ],
      "links": [
        [
          "species",
          "species"
        ],
        [
          "rush",
          "rush"
        ]
      ]
    }
  ],
  "word": "Baltic rush"
}