Cornus controversa (wedding cake tree), syn. Swida controversa, is a species of flowering plant in the genus Cornus of the dogwood family Cornaceae, native to China, the Himalayas and Japan. It is a deciduous tree growing to 50 ft (15 m), with multiple tiered branches. Flat panicles of white flowers appear in summer, followed by globose black fruit. The leaves turn a rich red-purple in autumn. It is cultivated in gardens and parks in temperate regions.