The following are the features of a flower.
A) Bisexual and unisexual flowers.
B) Actinomorphic and zygomorphic flowers.
C) Tubular and ligulate corolla.  
Name the genus in which the above features are observed?

Inflorescence in sunflowers is called the head or capitulum. Disc florets of sunflower are bisexual and actinomorphic and are present at the center. Ray florets are zygomorphic and present at the periphery. Their primary role is to attract pollinators. Ray florets are neutral or sometimes female flowers that are non-reproductive. Asteraceae members have ligulate corolla. Ligulate corolla is gamopetalous. Corolla unites at the bottom and forms tube like structure.