What are some examples of a disk flower?

Disk flowers are a type of flower structure found in the Asteraceae family, characterized by a central disk of tiny tubular florets surrounded by petal-like ray florets. Examples include the common daisy (Bellis perennis), which features a prominent yellow center and white petal-like rays, and the sunflower (Helianthus annuus), known for its large, vibrant yellow rays encircling a dark central disk. Other examples include asters and chrysanthemums, which also exhibit this distinctive floral arrangement.