androecium

plant anatomy

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June 18, 2026

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The androecium is the collective term for all the stamens in a flower, representing the male reproductive part of flowering plants. Each stamen typically consists of a filament, which is a stalk, and an anther at its tip. The anther contains microsporangia, which produce pollen grains essential for pollination.123

The number and arrangement of stamens can vary significantly among different plant species and are important for classification. In some cases, stamens may be modified into structures like staminodes, which can resemble petals, or into nectaries that attract pollinators. The androecium is typically surrounded by the petals and encircles the female reproductive parts of the flower, the carpels.142

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Lamiales
Order characteristics
…families of the order, the androecium (stamens) is constructed on a two-part (dimerous) or a four-part (tetramerous) plan, both of which are associated with regular corollas. For example, species of Oleaceae (e.g., ashes, forsythias, jasmine, and lilacs) typically have two stamens, and species of Buddleja (butterfly bush; a
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…families of the order, the androecium (stamens) is constructed on a two-part (dimerous) or a four-part (tetramerous) plan, both of which are associated with regular corollas. For example, species of Oleaceae (e.g., ashes, forsythias, jasmine, and lilacs) typically have two stamens, and species of Buddleja (butterfly bush; a
Read More