The Malpighiales are a large order of eudicots with around 40 families and more than 16,000 species. Many species are woody plants which are found in the tropics and subtropics. The order includes forest trees, crops, ornamentals and various weeds. Important weed families are the spurge family and the tamarix family.
The Malpighiales have a large variety of morphological forms and the assignment of a family to this order is mainly based on the DNA structure of its species.
The group includes the following weed families: