Thorn is a stem structure because it
Develops from trunk
Develops from axillary bud
Grows from external surface
Is pointed
Modification of stem for reproduction is found in.
A runner of water with one thick internode, found in aquatic rosette plants like Eichhorina $(Water\,\, hyacinth)$ is called
Rhizome of ginger is like the roots of other plants that grows underground. Despite this fact ginger is a stem and not a root. Justify.
Describe modifications of stem for specific functions.
Potatoes develop on