Which type of flowers are included in the inflorescence of the Common sunflower?

The Common sunflower, scientifically known as Helianthus annuus, showcases a unique flower structure in its inflorescence. In this case, the correct description includes both yellow ray flowers and brown disk flowers.

The ray flowers, typically found on the outer edge of the sunflower's head, are what we perceive as the bright yellow petal-like structures. These are important for attracting pollinators due to their vibrant color and shape. On the other hand, the brown disk flowers are located in the center of the flower head and are crucial for reproduction, as they contain the plant's reproductive parts.

This combination of yellow ray flowers and brown disk flowers is characteristic of the Common sunflower, contributing to its distinctive appearance and ecological function.