What is the smallest flower in the world?

The smallest flower in the world is the Wolffia plant, also known as Wolffia. It is an aquatic plant that grows in tropical and subtropical water bodies. The Wolffia flower is so small that it is difficult to see with the naked eye. The flower consists of only one cell and its diameter is less than a millimeter. This makes it the smallest flowering plant in the world.

Wolffia plant is very small and unassuming, but it is still an interesting phenomenon for botanists. It has adapted to life in extreme conditions and its flower has evolved to be very small so that it can reproduce effectively in an aquatic environment.

Source: Wikipedia