any of a genus (Bouvardia) of plants of the madder family, grown for the showy flowers often used in brides' bouquets
See bouvardia in American Heritage Dictionary 4
(bo͞o-värˈdē-ə)
noun
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.