"windmill grass" meaning in English

{
  "forms": [
    {
      "form": "windmill grasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "windmill grass (countable and uncountable, plural windmill grasses)",
      "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": "Grasses",
          "orig": "en:Grasses",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Any grass in the genus Chloris, especially Chloris truncata, a clumping grass of Australia."
      ],
      "id": "en-windmill_grass-en-noun-FM7HOnfH",
      "links": [
        [
          "Chloris",
          "Chloris#Translingual"
        ]
      ],
      "synonyms": [
        {
          "sense": "Chloris spp.",
          "word": "finger grass"
        },
        {
          "sense": "Chloris truncata",
          "word": "Australian fingergrass"
        },
        {
          "sense": "Chloris truncata",
          "word": "black windmill grass"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "windmill grass"
}

{
  "forms": [
    {
      "form": "windmill grasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "windmill grass (countable and uncountable, plural windmill grasses)",
      "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",
        "English uncountable nouns",
        "Entries missing English vernacular names of taxa",
        "Entries using missing taxonomic name (species)",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Grasses"
      ],
      "glosses": [
        "Any grass in the genus Chloris, especially Chloris truncata, a clumping grass of Australia."
      ],
      "links": [
        [
          "Chloris",
          "Chloris#Translingual"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "Chloris spp.",
      "word": "finger grass"
    },
    {
      "sense": "Chloris truncata",
      "word": "Australian fingergrass"
    },
    {
      "sense": "Chloris truncata",
      "word": "black windmill grass"
    }
  ],
  "word": "windmill grass"
}