"sour grass" meaning in English

{
  "forms": [
    {
      "form": "sour grasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "sour grass (usually uncountable, plural sour grasses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Oxalidales order plants",
          "orig": "en:Oxalidales order plants",
          "parents": [
            "Plants",
            "Trees",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A low spreading plant with yellow flowers and clover-like leaves, Oxalis stricta."
      ],
      "id": "en-sour_grass-en-noun-YuxR0R5Z",
      "links": [
        [
          "Oxalis stricta",
          "Oxalis stricta#Translingual"
        ]
      ],
      "synonyms": [
        {
          "sense": "Oxalis stricta",
          "word": "yellow woodsorrel"
        },
        {
          "sense": "Oxalis stricta",
          "word": "yellow wood sorrel"
        },
        {
          "sense": "Oxalis stricta",
          "word": "Oxalis europaea"
        },
        {
          "sense": "Oxalis stricta",
          "word": "Oxalis fontana"
        },
        {
          "sense": "Oxalis stricta",
          "word": "common yellow woodsorrel"
        },
        {
          "sense": "Oxalis stricta",
          "word": "common yellow oxalis"
        },
        {
          "sense": "Oxalis stricta",
          "word": "upright yellow-sorrel"
        },
        {
          "sense": "Oxalis stricta",
          "word": "lemon clover"
        },
        {
          "sense": "Oxalis stricta",
          "word": "pickle plant"
        }
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "sour grass"
}

{
  "forms": [
    {
      "form": "sour grasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "sour grass (usually uncountable, plural sour grasses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:Oxalidales order plants"
      ],
      "glosses": [
        "A low spreading plant with yellow flowers and clover-like leaves, Oxalis stricta."
      ],
      "links": [
        [
          "Oxalis stricta",
          "Oxalis stricta#Translingual"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "Oxalis stricta",
      "word": "yellow woodsorrel"
    },
    {
      "sense": "Oxalis stricta",
      "word": "yellow wood sorrel"
    },
    {
      "sense": "Oxalis stricta",
      "word": "Oxalis europaea"
    },
    {
      "sense": "Oxalis stricta",
      "word": "Oxalis fontana"
    },
    {
      "sense": "Oxalis stricta",
      "word": "common yellow woodsorrel"
    },
    {
      "sense": "Oxalis stricta",
      "word": "common yellow oxalis"
    },
    {
      "sense": "Oxalis stricta",
      "word": "upright yellow-sorrel"
    },
    {
      "sense": "Oxalis stricta",
      "word": "lemon clover"
    },
    {
      "sense": "Oxalis stricta",
      "word": "pickle plant"
    }
  ],
  "word": "sour grass"
}