👉 Notasterias is a type of flowering plant that typically has three petals, but it can also have five or six petals depending on its species and the conditions in which it grows. These plants are often referred to as "starry" because they produce large, colorful flowers with starlike structures. Some common notasteriaceous species include the Notasteria japonica, Notasteria campanulata, and Notasteria spicifera.