The APG II system is the successor of the APG system. Each of these systems represents the broad consensus of a number of systematic botanists, united in the APG, working at several institutions worldwide.
The APG II system has proven to be influential and has been adopted in whole or in part (sometimes with modifications) in a number of recent references.
In more detail (but excluding a dozen unplaced genera), with in the beginning of each listing some families or orders that are not placed in a further clade:
Note: "+ ..." = optional segregrate family, that may be split off from the preceding family.