Flower Structure and Function

Flowers are the reproductive structures of a flowering plant. They are the primary structures used in grouping plant families.


  • Reproduction, beginning with pollination and fertilization.
  • Advertisement and rewards to lure a pollinator.
  • Horticultural uses
    • Aesthetic qualities
    • Cut flowers and potted blooming plants
    • Edible flowers and herbs
    • Plant identification[/column][/columns]


  • Pistil – Central female organ of the flower. It is generally bowling-pin-shaped and located in the center of the flower.
    • Stigma – Receives pollen, typically flattened and sticky
    • Style – Connective tissues between stigma and ovary
    • Ovary – Contains ovules or embryo sacs
    • Ovules – Unfertilized, immature seeds
Flower Structure and Function
Parts of a Flower
  • Stamen – Male flower organ
    • Anthers – pollen-producing organs
    • Filament – Stalk supporting anthers
  • Petals – Usually colorful petal-like structures making up the "flower," collectively called the corolla. They may contain perfume and nectar glands.
  • Sepals – Protective leaf-like enclosures for the flower buds, usually green, collectively called calyx. Sometimes highly colored like the petal as in iris.
  • Receptacle – Base of the flower
  • Pedicel – Flower stalk of an individual flower in an inflorescence

Source: colostate.edu


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