In Pistia and Eichhornia, stems are modified to form
Offsets
Tendrils
Stolons
Suckers
One of single internodal branches are found in
Plants of tropics bear
In hook climber Artabotrys, the hooks are modified
..................... are the regions of the stem that bear leaves.
In which of the following plants, stem perform the function of storage and act as organ of perennation