Stems and roots are in the soil and leaves are produced at the end of long petioles which ascend to the water surface. Nelumbo Nuphar Nymphaea 2. Leaves are on short petioles that arise along the ascendant stems. The leaves of these plants are smaller than those in the previous group and so are less easily damaged in high energy environments. Brasenia Polygonum Potamageton 3.
Leaves are grass-like and originate at the soil surface.
Leaves are deeply divided.