Euphorbiales is an order of flowering plants that is not currently recognized in the most authoritative modern treatment of plant taxonomy.[1] In the APG II system (2003) the plants involved are mostly placed in the order Malpighiales.
A well known system that did recognize the order was the Cronquist system (1981) which placed the order in subclass Rosidae and used this circumscription:
family Buxaceae
family Simmondsiaceae
family Euphorbiaceae (more broadly defined than in the APG II and III systems)
family Pandaceae