How can a sunflower defined as a incomplete flower?

A sunflower can be defined as an incomplete flower because it typically lacks some of the essential parts that characterize a complete flower. Specifically, while sunflowers possess both stamens (male reproductive organs) and pistils (female reproductive organs), they may not have all the typical floral structures, such as petals and sepals, in a fully developed form. Additionally, many sunflowers exhibit a composite structure where the large head is made up of numerous individual florets, which can further contribute to their classification as incomplete.