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