Sepal
Sepal explained in an easy to understand way:
Imagine trying to keep a fragile gift safe during a bumpy car ride. Just like the wrapping paper and box protect the present inside, a sepal acts as a protective cover for a flower when it is still a bud. In this analogy, the sepal functions like the wrapping paper and box, shielding the delicate petals from damage until they are ready to "unwrap" and bloom, just as your gift would be safely delivered and opened at its destination.
Practice Version
Sepal: A leaf-like structure below the petals, it protects the flower when it is a bud. Sepal. The sepal is a part of the flower that shields and supports the developing bud.