The important characteristics are as follows:Adventitious roots are roots that grow from different parts of the plant.These roots can be aerial or underground.They have different modifications for storage and support.Different types of adventitious roots are pneumatophores, prop roots, stilt roots, and many more.They perform the function of providing a proper exchange of gas for the plants.It also helps the plants absorb water and nutrients during waterlogged conditions.Examples of adventitious roots are potatoes, sweet potatoes and many more.