Non-flowering plants are some of the oldest plants on earth.

Some famous non flowering plants are ferns and horsetails. You can often see horsetails growing as weeds in gardens and fields.

Fossils of these ferns and horsetails can often be seen in pieces of coal.

Non flowering plants have survived for so long because they have been able to adapt to all the changes that have taken place on earth. 

Non flowering plants are usually simpler than flowering plants.

But because they do not have flowers, they have to reproduce in other ways.

Non flowering plants grow from spores and not seeds.