The placement of Berberidopsidales has been quite problematic. This name is new, only recognised in the Apg3 classification. Berberidopsidales is a close ally of Caryophyllales. The Apg2 classification left the members unplaced as to order, assigning them to the core eudicots.
The Order Berberidopsidales has 2 families: Berberidopsidaceae and Aextoxicaceae.
In the Plant system they are tentatively placed as Subclass 1 of the Asteranae.