Sepals

Sepals are the usually green, leaf-like structures that form the outermost whorl of a flower. They enclose and protect the developing bud before it blooms, often playing a protective role against environmental stressors and providing support for the petals. While primarily green, sepals in some plant species can be brightly colored, mimicking petals to attract pollinators, and can persist after flowering in some species, contributing to the fruit development. The collective term for sepals is the calyx. Their structure, number, and arrangement are essential characteristics used in plant identification.

Sepals meaning with examples

• The rose bud was tightly closed, its delicate petals safely tucked away within the protective sepals. As the flower began to open, the sepals gradually unfurled, revealing the vibrant petals inside. After the rose had bloomed, the sepals continued to hold the petals close.
• Botanists meticulously examine the sepals of a flower to identify the species. The size, shape, and color of the sepals can vary widely depending on the plant type. These features are key elements of plant classification, from which a taxonomy can be derived.
• The sepals of the poppy are large and quickly fall off once the flower opens. Their primary function is protection during the bud stage, making them less essential during full bloom. The bright color of the petals captures pollinators' attention.
• In many flowering plants, the sepals protect the developing reproductive organs. The sturdy sepals shield the pistil and stamens from harm. Even the wind-born seeds are influenced by the presence of protective sepals.
• Some carnivorous plants use their sepals to attract insects with their bright colours. The sepals, sometimes mistaken for petals, play an important role in lure the insects towards their deadly traps. They support the leaves used for food acquisition.