Butterwort plants growing in a field.
butterwort definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of a genus (Pinguicula) of the bladderwort family of small, stemless plants with flat, sticky leaves on which insects are trapped
butterwort definition by American Heritage Dictionary
Any of numerous carnivorous plants of the genus Pinguicula, having a rosette of basal leaves that are coated with a sticky secretion that traps small insects for digestion.