Difference between Corm and Rhizome

Rhizome and corm are the underground stem modifications in which stems are seen below the surface of the soil and are modified to store the food.
Rhizome vs Corm
Rhizome

1.       It is flattened underground stem.
2.       It grows horizontantly
3.       Adventitious roots arise profusely from nodes

Example of Rhizome: Ginger, Canna, Turmeric, Banana
Corm

1.       It is cylindrical underground stem
2.       It grows vertically
3.       Adventitious roots arise from the lower nodes of the corm

Example of Corm: Gladious, Colocasia Amorphophallus
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