"poor man's weatherglass" meaning in English

{
  "etymology_text": "Scarlet pimpernel flowers open only when the sun shines, and even close in overcast conditions.",
  "forms": [
    {
      "form": "poor man's weatherglasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~",
        "head": "poor man's weatherglass"
      },
      "expansion": "poor man's weatherglass (countable and uncountable, plural poor man's weatherglasses)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Primrose family plants",
          "orig": "en:Primrose family plants",
          "parents": [
            "Ericales order plants",
            "Flowers",
            "Plants",
            "Shrubs",
            "Trees",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1940, Rosetta E. Clarkson, Green Enchantments: The Magic Spell of Gardens, The Macmillan Company, page 272:",
          "text": "Pimpernel (poor man's weather glass) was also a protection, but as the gatherer collected the herbs, he must chant a certain incantation and continue to do so twice a day for 15 days[.]",
          "type": "quote"
        }
      ],
      "glosses": [
        "A scarlet pimpernel (Anagallis arvensis)."
      ],
      "id": "en-poor_man's_weatherglass-en-noun-zzrSpN-s",
      "links": [
        [
          "scarlet pimpernel",
          "scarlet pimpernel"
        ],
        [
          "Anagallis arvensis",
          "Anagallis arvensis#Translingual"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "poor man's weatherglass"
}

{
  "etymology_text": "Scarlet pimpernel flowers open only when the sun shines, and even close in overcast conditions.",
  "forms": [
    {
      "form": "poor man's weatherglasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~",
        "head": "poor man's weatherglass"
      },
      "expansion": "poor man's weatherglass (countable and uncountable, plural poor man's weatherglasses)",
      "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 terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Primrose family plants"
      ],
      "examples": [
        {
          "ref": "1940, Rosetta E. Clarkson, Green Enchantments: The Magic Spell of Gardens, The Macmillan Company, page 272:",
          "text": "Pimpernel (poor man's weather glass) was also a protection, but as the gatherer collected the herbs, he must chant a certain incantation and continue to do so twice a day for 15 days[.]",
          "type": "quote"
        }
      ],
      "glosses": [
        "A scarlet pimpernel (Anagallis arvensis)."
      ],
      "links": [
        [
          "scarlet pimpernel",
          "scarlet pimpernel"
        ],
        [
          "Anagallis arvensis",
          "Anagallis arvensis#Translingual"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "poor man's weatherglass"
}