Noun
A plant of the genus Anagallis, of which one species (A. arvensis) has small flowers, usually scarlet, but sometimes purple, blue, or white, which speedily close at the approach of bad weather.
Source: Webster's dictionaryOther NY/regional: The Scarlet Pimpernel and Crazy For You (Manhattan Concert Productions), The Threepenny Opera (Atlantic Theater); The Band Wagon, Pipe Dream (City Center Encores! Source: Internet
I'm delighted with that and she is by a stallion (Elusive Pimpernel) which we adore and we can't get enough of them. Source: Internet
The young Brent, only a teenager at the time, was physically mature and had the look of the Dublin Pimpernel. Source: Internet