Euphorbiales
In the APG II system the plants involved are placed in order Malpighiales.Families in the order Euphorbiales of plants
Euphorbiaceae - Euphorbiaceae, the Spurge family is a large family of flowering plants with 300 genera and around 7,500 species.
Buxaceae - Buxaceae is a small family of four or five genera and about 90-120 species of flowering plants.