What are the examples of aerial stem modification.

Subaerial stems are the stems that do not rise up but grow just above the ground. As a type of asexual propagation, these subaerial stolons, also called runners, often develop roots and leaves from their nodes. Some pond plants have subaerial leaves as well as submerged leaves (water plantain, flowering rush)

the answer is yes, they are born/created, then they grow to their limit then produce offspring, then die.