The world's smallest flowering plant is so tiny that a whole bunch of them could fit on the head of a pin.

The specific species known as Wolffia globosa is the record-holder for the smallest flowering plant on Earth. Each individual plant is only about 0.5 to 0.8 millimeters long and weighs less than a grain of sugar. Even though it is microscopic, it still manages to grow the world's smallest fruit, which is called a utricle.These plants live on the surface of quiet ponds and lakes. Instead of growing like a normal flower, they reproduce by 'budding.' This means a mother plant grows a tiny daughter plant directly out of its side. They grow incredibly fast and can double their entire population in less than two days.In countries like Thailand, people actually eat these tiny plants and call them 'khai-nam,' which means 'water eggs.' They are super healthy because they are 40% protein and full of vitamins. Scientists at the Salk Institute are even studying their DNA to figure out how they grow so fast with such a simple body. They found that these plants have one of the smallest genomes in the plant world, which helps them save energy and focus entirely on growing.