The American Heritage® Dictionary of the English Language, 4th Edition
n. Any of various climbing, tendril-bearing, chiefly tropical American vines of the genus Passiflora, having large showy flowers with a fringelike crown and a conspicuous stalk that bears the stamens and pistil.
n. any of very many North American vines, of the family Passifloraceae, that bear edible fruit, called passion fruit.
n. the flower of this plant
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any of various chiefly tropical American vines some bearing edible fruit
Word Usage
"The name passionflower may give you the wrong impression of this calming herb, which I consider to be one of the best herbal remedies for anxiety and insomnia."