Corolla

The corolla is the innermost whorl of the flower, commonly composed of petals. It serves a variety of functions, including protecting the delicate parts of the flower, providing a colorful surface to attract pollinators, and, in some cases, producing nectar to reward the pollinators. The shape and arrangement of the petals in the corolla are important factors in the successful transfer of pollen from one flower to another, and ultimately the survival and reproduction of the species.