The center of a common sunflower (Helianthus annuus), showcasing the characteristic spiral arrangement of its disk florets, which mature into sunflower seeds.

The center of a common sunflower (Helianthus annuus), showcasing the characteristic spiral arrangement of its disk florets, which mature into sunflower seeds.

The center of a common sunflower (Helianthus annuus), showcasing the characteristic spiral arrangement of its disk florets, which mature into sunflower seeds.