This picture is an example of pollen, in this picture it is orange, it's also located in the center of the flower on the anther. Pollen is a fine powdery substance, it is used to carry the male DNA to the female part of a flower the stigma. The stigma of a flower is sticky so it can catch the pollen from the anther. Individual pollen grains are very small, a pinch of powder contains thousands of pollen grains.
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