How do sunflower work?

head

Answer:

First, the "Sunflower" is native to the Americas.

The sunflower is comprised of many smaller flowers very close together, forming what is known as florets. These florets as a whole is called the head or flower of the sunflower. The florets, spiral forming the flower/head and can grow to as large as 15" (381mm) in diameter and up to 15 feet (4.57M) tall.