There are different types of reproduction in plants.

Many plants that grow flowers and seeds can also reproduce through fragmentation.

In fragmentation , a new plant grows from a fragment of the parent plant.

First,  a small fragment falls and breaks of the plant.

Then, the fragment falls to the ground and germinates.

Finally, a new plant begins to grow.

STOLONS are above ground stems that grow horizontally.

TUBERS are above underground stems. 

BULBS are  at the bottom of the stem.

RHIZOMES grow underground.