Can Vitex negundo be grafted with Lagerstroemia indica?

It is almost impossible for Vitex negundo to graft Lagerstroemia indica. Grafting is easy to survive, generally it is the grafting of the same family or even different varieties of the same species.

The status of Vitex negundo in plant taxonomy is as follows: Vitex negundo, Vitex negundo, Verbenaceae.

The position of Lagerstroemia indica in plant taxonomy is as follows: Lagerstroemia indica they are almost unrelated.