Would you believe this is part of a plant? This is the anther of a sand rock-cress flower. It is responsible for producing the pollen that will be released into the environment to fertilize the eggs ...

Pollen is the powder produced by the male sex ... the inner tissue drives the formation of the complex 3D shape of the anther during development.

self pollination - pollen from an anther of the same flower or same plant arrives at the stigma of the flower. Examples of self-pollinating plants include wheat, barley, rice, tomatoes and potatoes.