| Noun | 1. | family Rhamnaceae - trees and shrubs usually thorny bearing drupaceous fruit many having medicinal value dicot family, magnoliopsid family - family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination order Rhamnales, Rhamnales - an order of dicotyledonous plants genus Rhamnus, Rhamnus - type genus of the Rhamnaceae: buckthorns Colubrina, genus Colubrina - mostly tropical American shrubs or small trees with small yellowish flowers and yellow or red fruits genus Ziziphus, Ziziphus - spiny chiefly tropical American and Asiatic shrubs: jujubes genus Paliurus, Paliurus - thorny Eurasian shrubs genus Pomaderris, Pomaderris - a genus of Australasian shrubs and trees |