The Brassicales (or Cruciales) are an order of flowering plants, belonging to the malvid group of eudicotyledons under the APG IV system.

[2] One character common to many members of the order is the production of glucosinolate (mustard oil) compounds.

Most systems of classification have included this order, although sometimes under the name Capparales (the name chosen depending on which is thought to have priority).

[3] The order typically contains the following families:[4] The following diagram shows the phylogeny of the Brassicales families along with their estimated ages, based on a 2018 study of plastid DNA:[5] Akaniaceae Tropaeolaceae Moringaceae Caricaceae Setchellanthaceae Limnanthaceae Salvadoraceae Bataceae Koeberliniaceae Emblingiaceae Pentadiplandraceae Resedaceae Gyrostemonaceae Tovariaceae Capparaceae Cleomaceae Brassicaceae On 20 April 2020, a newly described monotypic species from Namibia, namely, Tiganophyton karasense Swanepoel, F.Forest & A.E.

van Wyk is placed under this order as a monotypic member of new family Tiganophytaceae, which is closely related to Bataceae, Salvadoraceae and Koeberliniaceae.