| Noun | 1. | quassia family - chiefly tropical trees and shrubs with bitter bark having dry usually one-seeded winged fruit rosid dicot family - a family of dicotyledonous plants Geraniales, order Geraniales - an order of plants of subclass Rosidae including geraniums and many other plants; see Euphorbiaceae; Geraniaceae; Rutaceae; Malpighiaceae; Simaroubaceae; Meliaceae; Zygophyllaceae; Tropaeolaceae bitterwood tree - any of various trees or shrubs of the family Simaroubaceae having wood and bark with a bitter taste genus Simarouba, Simarouba - type genus of Simaroubaceae; tropical American trees and shrubs having a pale soft wood and bitter bark genus Ailanthus - small genus of east Asian and Chinese trees with odd-pinnate leaves and long twisted samaras genus Irvingia, Irvingia - wild mango genus Kirkia, Kirkia - small genus of tropical South African trees and shrubs genus Picrasma, Picrasma - small genus of deciduous trees of tropical America and Asia genus Quassia - tropical trees and shrubs with pinnate leaves and large scarlet flowers; bark is medicinal |