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Flower Gardening
Botany or Plant Biology

What are the four structures of a complete flower?


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2013-02-14 22:35:58
2013-02-14 22:35:58

Four Parts of a Flower:

Typically a flower has four structures.

These are attached to the stalk and ordered as four whorls.

Starting from the lowest, they are as follows.

Calyx: These are the sepals and enclose the flower when it is still a bud.

Corolla: These are the petals.

Androecium: These are the stamens. Stamens are where pollen is produced.

Gynoecium: This is the pistil, the innermost whorl of a flower, composed of units called carpels which is the structure for the egg cells that turn into seeds.

In another terminology, one hears the four parts of the flower described as pistil, stamen, petals and sepal.

The gynoecium, the innermost whorl is the pistil and consists of an ovary, style and stigma.

A pistil one or several carpels fused together.

The sticky tip of the pistil, the stigma, is where pollen attaches to the stalk.

The style is supportive stalk where the pathway for pollen tubes grow from where the pollen grains attach.


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