sea holly 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.
a European eryngo (Eryngium maritimum) with leathery, bluish, spiny leaves and globular heads of small, bluish flowers
sea holly definition by American Heritage Dictionary
A European seashore plant (Eryngium maritimum) having prickly, fleshy, bluish leaves and heads of blue or purplish flowers.