Classification
Amborella is placed alone in the family Amborellaceae. The APG II system recognized this family, but left it unplaced at order rank due to uncertainty about its relationship to the family Nymphaeaceae. In the most recent APG system, APG III, the Amborellaceae is placed in the monotypic order Amborellales at the base of the angiosperm phylogeny.
Read more about this topic: Amborella