Plant reproductive system

Flowers, also known as blossoms and blooms, are the reproductive structures of flowering plants. Typically, they are structured in four circular levels around the end of a stalk. These include: sepals, which are modified leaves that support the flower; petals, often designed to attract pollinators; male stamens, where pollen is presented; and female gynoecia, where pollen is received and its movement is facilitated to the egg. When flowers are arranged in a group, they are known collectively as an inflorescence.

thumb|upright=1.4|In a mature flower, the perianth consists of a calyx ([[sepals) and the corolla (petals) it supports.]]

thumb|right|250px|Stamens of a Hippeastrum with white filaments and prominent anthers carrying [[pollen]]

part of the female reproductive organ of flowers

thumb|Flower of Magnolia × wieseneri|Magnolia × wieseneri showing the many pistils making up the gynoecium in the middle of the flower thumb|Hippeastrum flowers showing stamens, style and stigma thumb|right|Hippeastrum stigmas and style thumb|right|Moss plants with gynoecia, clusters of archegonia at the apex of each shoot.

part of a flower. The pollen-receptive surface of a carpel or group of fused carpels, usually sticky; usually a point or small head at the summit of the style where deposited pollen germinates

element allowing the dissemination of a plant species

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study of flower structures

thumb|Lobelia siphilitica is an example of a species with a gynodioecious mating system.