A sepal is one of the outer parts of a flower that encloses and protects the unopened flower bud. Sepals are often green and leaf-like, but they can also be petal-like in some plants. They are collectively referred to as the calyx. Sepals are sterile floral parts and play an essential role in protecting the delicate flower structures inside from drying out and damage.
Here are some key points about sepals:
- Function: Protection of the flower bud
- Appearance: Typically green and leaf-like, but can also be petal-like
- Location: Outermost part of the flower, forming the calyx
- Role: Sterile floral parts, meaning they don't contribute to reproduction
Examples of flowers with easily visible sepals include roses, tulips, and lilies.