Noun | 1. | passionflower family - tropical woody tendril-climbing vines dilleniid dicot family - family of more or less advanced dicotyledonous trees and shrubs and herbs Hypericales, order Hypericales, order Parietales, Parietales - a large order of dicotyledonous plants of subclass Dilleniidae genus Passiflora, Passiflora - type genus of the Passifloraceae |