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  2. Stamen - Wikipedia

    en.wikipedia.org/wiki/Stamen

    In some species, however, the flowers are unisexual with only carpels or stamens. (monoecious = both types of flowers found on the same plant; dioecious = the two types of flower found only on different plants). A flower with only stamens is called androecious. A flower with only carpels is called gynoecious. A pistil consists of one or more ...

  3. Floral morphology - Wikipedia

    en.wikipedia.org/wiki/Floral_morphology

    The number of stamens in each flower is a highly variable character. Some species of the euphorbiaceae family have flowers with only one stamen (they are called monanders), the oleaceae have two stamens (flowers dianders) and in the myrtaceae there are numerous (they are polyanders). The number of stamens may or may not be equal to the number ...

  4. Pseudanthium - Wikipedia

    en.wikipedia.org/wiki/Pseudanthium

    The term pseudanthium was originally applied to flowers with stamens in two whorls with the outer whorl opposite the petals (obdiplostemonate) or polyandric flowers; by the early 1900s the term was repurposed by the advocates of the 'pseudanthium theory' which assumed flower evolution originated from a polyaxial instead of a monoaxial configuration.

  5. Flower - Wikipedia

    en.wikipedia.org/wiki/Flower

    Other flowers have modified petal-like stamens; the double flowers of peonies and roses are mostly petaloid stamens. [22] Many flowers have symmetry. When the perianth is bisected through the central axis from any point and symmetrical halves are produced, the flower is said to be actinomorphic or regular. This is an example of radial symmetry.

  6. Plant reproductive morphology - Wikipedia

    en.wikipedia.org/wiki/Plant_reproductive_morphology

    Members of the birch family are examples of monoecious plants with unisexual flowers. A mature alder tree (Alnus species) produces long catkins containing only male flowers, each with four stamens and a minute perianth, and separate stalked groups of female flowers, each without a perianth. [8] (See the illustration of Alnus serrulata.)

  7. ABC model of flower development - Wikipedia

    en.wikipedia.org/wiki/ABC_model_of_flower...

    A flower's anatomy, as defined by the presence of a series of organs (sepals, petals, stamens and carpels) positioned according to a given pattern, facilitate sexual reproduction in flowering plants. The flower arises from the activity of three classes of genes, which regulate floral development: [8]

  8. Lycoris radiata - Wikipedia

    en.wikipedia.org/wiki/Lycoris_radiata

    A red spider lily flower in full-bloom A girl with a bouquet of red spider lily flowers. Lycoris radiata is a bulbous perennial with showy, bright-red flowers. When in full bloom, spindly stamens, likened to the image of spider legs, extend slightly upward and outward from the flower's center. [6]

  9. Iris (plant) - Wikipedia

    en.wikipedia.org/wiki/Iris_(plant)

    The shelf-like transverse projection on the inner whorled underside of the stamens is beneath the overarching style arm below the stigma, so that the insect comes in contact with its pollen-covered surface only after passing the stigma; in backing out of the flower it will come in contact only with the non-receptive lower face of the stigma ...