Malpighiales

The Malpighiales are a large order of flowering plants, included in the group named Eurosids I in the recent APG classification. 
This diverse order includes plants as varied as violets and willows, passionfruit and mangrove, poinsettia and flax. "Euphorbia" is a toxic member of the order. "Euphorbia maculata", "Euphorbia esula" and "Euphorbia heterophylla" are euphorbia species that can be very harmful. This feature is a defence against herbivory.