"Mexican feathergrass" meaning in English

{
  "forms": [
    {
      "form": "Mexican feathergrasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "Mexican feathergrass (usually uncountable, plural Mexican feathergrasses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Grasses",
          "orig": "en:Grasses",
          "parents": [
            "Commelinids",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Nassella tenuissima."
      ],
      "id": "en-Mexican_feathergrass-en-noun-4GKbrP5q",
      "raw_glosses": [
        "(US) Nassella tenuissima."
      ],
      "synonyms": [
        {
          "word": "Mexican feather grass"
        }
      ],
      "tags": [
        "US",
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "Mexican feathergrass"
}

{
  "forms": [
    {
      "form": "Mexican feathergrasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "Mexican feathergrass (usually uncountable, plural Mexican feathergrasses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "American English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "Entries using missing taxonomic name (species)",
        "en:Grasses"
      ],
      "glosses": [
        "Nassella tenuissima."
      ],
      "raw_glosses": [
        "(US) Nassella tenuissima."
      ],
      "tags": [
        "US",
        "uncountable",
        "usually"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Mexican feather grass"
    }
  ],
  "word": "Mexican feathergrass"
}