Cell wall is present in plants which give them protection against temperature changes etc.
The sepals protect the tender parts of the flower in the unopened flower.
Protect the flower as it develops
the seaples protect a flower before it blooms
Sepals protect the flower whilst the flower is developing from a bud.
The sepals protect the tender parts of the flower in the unopened flower.
The sepals protect the tender parts of the flower in the unopened flower.
The sepals protect the tender parts of the flower in the unopened flower.
The sepals protect the tender parts of the flower in the unopened flower.
The sepals protect the tender parts of the flower in the unopened flower.
The sepals protect the tender parts of the flower in the unopened flower.
The sepals protect the tender parts of the flower in the unopened flower.
The sepals protect the tender parts of the flower in the unopened flower.