Radial symmetry is symmetry around a central axis. Some examples include a starfish or tulip flower. Organisms that have radial symmetry have no left or right, but only an up and down. Radial symmetric animals usually are symmetrical around an axis starting from the center of the oral cavity. Many flowers are radially symmetric, as well as viruses. Different types of radial symmetry include tetramerism, pentamerism, and hexamerism and octamerism. Each one is different in the way they can be divided. The picture shows a rose.