Plants in the worldwide Buttercup Family (Ranunculaceae) are annual and perennial herbs, subshrubs, vines, or lianas with simple or compound, opposite, alternate, or whorled leaves, flowers with 0 to many petals, 3 to many sepals, and a superior ovary, and fruit in the form of an achene, follicle, capsule, berry, or rarely an utricle (one seeded, bladder-like fruit).

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