A modern
system of plant taxonomy, the
APG II system of plant classification was published in 2003 by the
Angiosperm Phylogeny Group, APG, in
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.
Main groups in the system (all unranked clades)
