Triuridales

Triuridales was an order of flowering plants that was used in the Cronquist system, in the subclass Alismatidae. It used the following circumscription:

order Triuridales
: family Petrosaviaceae
: family Triuridaceae

In the classification system of Dahlgren the Triuridales contained the single family Triuridaceae and was the sole order in the superorder Triuridiflorae.
The APG [II system] leaves the first of these two families unassigned in the clade monocots while the second is moved to order Pandanales. In the APG [III system|APG III] and APG [IV system]s the second is placed in the monotypic order Petrosaviales.