 The Cornales are highly geographically disjunct and morphologically diverse, which has led to considerable confusion regarding the proper circumscription of the groups within the order and the relationships between them.Under the Cronquist system, the order comprised the families Cornaceae, Nyssaceae, Garryaceae, and Alangiaceae, and was placed among the Rosidae, but this interpretation is no longer followed.Many families and genera previously associated with the Cornales have been removed, including Garryaceae, "Griselinia", "Corokia", and "Kaliphora", among others.