Plants in the nearly worldwide Iris Family (Iridaceae) are herbs with rhizomes, bulbs, or corms, sheathed, alternate, linear to sword-shaped, parallel-veined, usually 2-ranked leaves, bisexual, 6-tepaled flowers enclosed in 2 opposite bracts, and fruit in the form of longitudinally opening seed capsules.

Listed below are some of the southeastern Arizona plants in this family.