The following families are included here in newer systems such as that of the Angiosperm Phylogeny Group (APG):
The APG II classification treats the Solanales in the group Euasterids I.
Under the older Cronquist system, the latter three families were placed elsewhere, and a number of others were included:
In the classification system of Dahlgren the Solanales were in the superorder Solaniflorae (also called Solananae).