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Parts of a Flower
Flowers contain the reproductive parts of angiosperms. Seeds are produced inside a fruit that is formed from part of the flower. Complete flowers have the following partstamens, pistils, petals, and sepals.
Stamens are the male reproductive organs of angiosperms. They have a stalk or filament, and an anther where the pollen is produced.
Pistils are the female reproductive organs. They have an ovary that produces the ovules, and a stigma on a stalk or style where pollen is received. The stamen and pistil are in the center of a flower. They are surrounded by the petals. Petals are like leaves in their structure. Sepals are leaf like structure of the flower. Sepals surround and cover the other parts before the opens. A rose is an example of a complete flower.
Some angiosperms produce incomplete flowers. An incomplete flower has one or more parts missing. For example, the flowers of some trees do not have petals or sepals. Some plants, such as corn, produce two different incomplete flowers. Male flowers with stamens are in the tassel at the top of the plant. Female flowers with pistils are in the ears of corn. In some species of plants, male and female flowers are produced on separate plants.
แหล่งข้อมูล : Focus on : Life SCIENCE. Page 181.
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