In the APG II system for the classification of the angiosperms the name rosids refers to a clade, meaning a monophyletic group of plants. This clade contains more than 25% of angiosperms (70,000 species). They're placed in about 140 families. The rosids and the asterids are by far the two largest groups in the eudicots. The clade includes, roughly speaking, those species that in the Cronquist system were referred to the Hamamelididae and Rosidae and quite a few from the Dilleniidae. The name "… (More on Rosids)