What are the green, leaf-like parts that cover a flower before it blooms called?

The green, leaf-like parts that cover a flower before it blooms are called sepals. Sepals are typically found at the base of a flower and serve as protection for the budding flower, shielding it from the elements and potential damage as it develops. They are usually green but can come in various colors depending on the plant species.

In contrast, petals are the often colorful parts of a flower that help attract pollinators. The ovary is the part of the flower that contains the ovules and will develop into fruit after fertilization, while the filament is a part of the stamen that supports the anther, which produces pollen. Understanding these parts can help in comprehending the structure and function of flowers in flowering plants.