What are the whorl of sepals in a flower commonly referred to as?

The whorl of sepals in a flower is commonly referred to as the calyx. The calyx serves as the protective outer layer for the flower bud, providing shelter for the developing flower before it blooms. It consists of individual segments called sepals, which can vary in number, shape, and color depending on the species of the plant. In many flowers, the calyx is green and leaf-like, contributing to the overall structure and aesthetic of the flower.

Petals, on the other hand, are the colorful parts of the flower that attract pollinators, while stamens are the male reproductive structures responsible for producing pollen. The pistil is the female reproductive organ of the flower, made up of the ovary, style, and stigma. Each of these components plays a distinct role in plant reproduction, but the term specifically associated with the whorl of sepals is indeed the calyx.