The flowers of the bouvardia.
bouvardia 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 (Bouvardia) of plants of the madder family, grown for the showy flowers often used in brides' bouquets
Origin: Modern Latin after C. Bouvard, 17th-c. French physician
bouvardia definition by American Heritage Dictionary
Any of several Mexican and Central American shrubs or herbs of the genus Bouvardia cultivated for their showy, narrowly tubular, variously colored flowers grouped in terminal cymes.
Origin: New Latin Bouvardia, genus name, after Charles Bouvard (1572-1658), French physician.