Ranunculaceae ( rə-NUNG-kyuu-LAY-see-e(y)e; from Latin rānunculus 'little frog', from rāna 'frog'), commonly called the buttercup family, is a large family of flowering plants, whose range is distributed worldwide.
As of February 2026, World Flora Online accepted 53 genera and over 3,700 species. The largest genera are Ranunculus with more than 1,600 species, Delphinium with more than 500, and Clematis with almost 400.