In life science, the term "corolla" refers to the collective term for all the petals of a flower. Petals are the colorful, often fragrant parts of a flower that attract pollinators such as bees and butterflies. The corolla is the outermost whorl of a flower, surrounding the reproductive organs such as the stamens and pistils. The petals of a corolla can vary in number, shape, size, color, and arrangement, and play a key role in plant reproduction.
