Meaning of pimpernel

pim•per•nel

Pronunciation: (pim'pur-nel", -nl), [key]
— n.
  1. a plant belonging to the genus Anagallis, of the primrose family, esp. A. arvensishaving scarlet or white flowers that close at the approach of bad weather.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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