stamen

(noun)

in flowering plants, the structure in a flower that produces pollen, typically consisting of an anther and a filament

Related Terms

  • verticil
  • whorl
  • carpel
  • sepal
  • angiosperm
  • corolla
  • perennial
  • apical meristem
  • primordium
  • biennial

Examples of stamen in the following topics:

  • Angiosperm Flowers

    • Although they vary greatly in appearance, all flowers contain the same structures: sepals, petals, carpels, and stamens.
    • The sexual organs (carpels and stamens) are located at the center of the flower.
    • The male reproductive organs, the stamens (collectively called the androecium), surround the central carpel.
    • Stamens are composed of a thin stalk called a filament and a sac-like structure called the anther.
  • Genetic Control of Flowers

    • The ABC model of flower development was first developed to describe the collection of genetic mechanisms that establish floral organ identity in the Rosids and the Asterids; both species have four verticils (sepals, petals, stamens and carpels), which are defined by the differential expression of a number of homeotic genes present in each verticil.
    • In the third whorl, B and C genes interact to form stamens and in the center of the flower C-genes alone give rise to carpels.
    • Class A genes (blue) affect sepals and petals, class B genes (yellow) affect petals and stamens, class C genes (red) affect stamens and carpels.
  • The Life Cycle of an Angiosperm

    • Some species of angiosperms are hermaphroditic (stamens and pistils are contained on a single flower), some species are monoecious (stamens and pistils occur on separate flowers, but the same plant), and some are dioecious (staminate and pistillate flowers occur on separate plants).
  • Pollination and Fertilization

    • Self-pollination occurs in flowers where the stamen and carpel mature at the same time and are positioned so that the pollen can land on the flower's stigma.
  • The Importance of Seed Plants in Human Life

    • Spices come from many different plant parts: saffron and cloves are stamens and buds, black pepper and vanilla are seeds, the bark of a bush in the Laurales family supplies cinnamon, and the herbs that flavor many dishes come from dried leaves and fruit, such as the pungent red chili pepper.
  • Sexual Reproduction in Angiosperms

    • The androecium has stamens with anthers that contain the microsporangia.
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