What does the term "calyx" refer to in flowers?

The term "calyx" specifically refers to all the sepals of a flower collectively. Sepals are the outermost part of the flower, commonly green, and serve a protective role during the early stages of flower development, often enclosing the budding flower. They may also assist in attracting pollinators, depending on their coloration and structure. Understanding the calyx is important for studying flower morphology and functions, as it plays a crucial role in the overall structure of the flower and its reproductive success. Recognizing the distinct roles of flower parts helps in the broader understanding of plant reproduction and pollination strategies.