How do cnidarians reproduce asexually?

Cnidarians utilize several mechanisms for asexual reproduction, allowing them to produce genetically identical individuals, or clones. These processes include:12

• Budding: Small portions of the adult structure grow and eventually detach to become new, independent individuals. This is a common method for many hydroids, sea anemones, and corals.12
• Fission: A parent organism may divide either lengthwise or crosswise into two smaller, separate individuals.2
• Strobilation: Specific to many scyphozoans, this process involves the asexual fission of a scyphistoma (polyp) at its oral end to produce immature medusae known as ephyrae.2

In many species, these asexual processes occur in the polyp phase of the life cycle. When polyps remain physically attached to one another after budding, they form a colony, where members may share a common digestive cavity.2