Flexi Says: Sea anemones are Cnidarian polyps. Polyps usually reproduce asexually. One type of asexual reproduction in polyps leads to the formation of new medusae. Most anemones can reproduce asexually through budding, where fragments break off and develop into new individuals. Some polyps split themselves by stretching across from the base to the middle and forms two new anemones of equal size through the method of longitudinal fission.