Euphorbiales is the botanical name

Botanical name

A botanical name is a formal scientific name conforming to the International Code of Botanical Nomenclature and, if it concerns a plant cultigen, the additional cultivar and/or Group epithets must conform to the International Code of Nomenclature for Cultivated Plants...

 of an order of flowering plants. Such an order has been recognized by relatively few taxonomists.

In the APG II system

APG II system

The APG II system of plant classification is the second, now obsolete, version of a modern, mostly molecular-based, system of plant taxonomy that was published in April 2003 by the Angiosperm Phylogeny Group. It was a revision of the first APG system, published in 1998, and was superseded in 2009...

 (2003) the plants involved are placed in order Malpighiales

Malpighiales

Malpighiales is one of the largest orders of flowering plants, containing about 16000 species, approximately 7.8% of the eudicots. The order is very diverse and hard to recognize except with molecular phylogenetic evidence. It is not part of any of the classification systems that are based only on...

. A well known system that did recognize such an order was the Cronquist system

Cronquist system

The Cronquist system is a taxonomic classification system of flowering plants. It was developed by Arthur Cronquist in his texts An Integrated System of Classification of Flowering Plants and The Evolution and Classification of Flowering Plants .Cronquist's system places flowering plants into two...

 (1981) which placed the order in subclass Rosidae

Rosidae

Under the International Code of Botanical Nomenclature , Rosidae is a botanical name at the rank of subclass. Circumscription of the subclass will vary with the taxonomic system being used; the only requirement being that it includes the family Rosaceae....

and used this circumscription:

• order Euphorbiales

  family Buxaceae

  Buxaceae

  Buxaceae are a small family of four or five genera and about 90-120 species of flowering plants. They are shrubs and small trees, with a cosmopolitan distribution...

  
  

  family Simmondsiaceae

  Simmondsiaceae

  Simmondsiaceae or the Jojoba Family is a family of flowering plants. The family is not recognized by all taxonomic systems, the single species, Simmondsia chinensis, often being treated as belonging to family Buxaceae....

  
  

  family Euphorbiaceae

  Euphorbiaceae

  Euphorbiaceae, the Spurge family are a large family of flowering plants with 300 genera and around 7,500 species. Most are herbs, but some, especially in the tropics, are also shrubs or trees. Some are succulent and resemble cacti....

  
  

  family Pandaceae

  Pandaceae

  The family Pandaceae consists of three genera that were formerly recognized in the Euphorbiaceae. Those are:*Galearia...

  
  

This usage of family Euphorbiaceae is in the wide sense: since that time the family has been split.