Basswood

Here is a good example of Basswood stems growing up from the roots of the tree. Notice the leaves in the photo below are from the new stems growing from the roots. They are bigger leaves, which may be due to the fact that they are below the canopy of the larger tree.
These leaves do not have seeds growing near them.




The leaves above in the parent tree do have seeds growing on them. They are smaller leaves and may not grow as large because they receive more sunlight.

All these leaves are from the same tree, because the smaller stems are from the same root system of the larger tree above.