# poor man's weatherglass

> English word · Noun

## Definitions
1. A scarlet pimpernel (Anagallis arvensis).

## Etymology
Scarlet pimpernel flowers open only when the sun shines, and even close in overcast conditions.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/poor-man-s-weatherglass