Vitaceae
The relationships of Vitaceae are unclear and the family does not appear to have any close relatives. In the Cronquist system, the family was placed near the family Rhamnaceae in order Rhamnales. The family was placed in the Rosid clade, but not classified in an order, by the Angiosperm Phylogeny Group (APG). The Angiosperm Phylogeny Web places Vitaceae in its own order, Vitales. Recent phylogenetic analyses support Vitaceae as the sister-group to all other rosids (Jansen et al. 2006).