Underground stem is rhizome in plant
Allium
Scilla
Lilium
Gloriosa
It is parasite plant.
Chrysan the mum ....... is modified to...... .
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.
It is fleshy cylindrical modification of stem and carry photosynthesis.