- a plant belonging to the genus Anagallis, of the primrose family, especially A. arvensis(scarlet pimpernel ), having scarlet or white flowers that close at the approach of bad weather.
- any of several plants of the primulaceous genus Anagallis, such as the scarlet pimpernel, typically having small star-shaped flowers
- any of several similar and related plants, such as Lysimachia nemorum (yellow pimpernel)
