what is corolla

In botany, the corolla refers to the petals of a flower, considered as a unit. It is the collective unit of petals and includes the reproductive organs. The corolla is the second whorl of a flower, which is internal to the calyx. The petals of the corolla can be gamopetalous (fused) or polypetalous (free) . The corolla is responsible for attracting insects to the flower, and while at the flower, these insects participate in pollination. The corolla can have a wide range of shapes and colors, such as wheel-shaped, bell-shaped, tubular, or funnel-shaped. The important function of petals is to keep the vital flower components in their younger state. The Toyota Corolla is an automobile model name.