Question

Horizontal underground stem is called as ______.

Answer 1

Rhizomes:

1. They are underground parts of a plant from where parts above the plant grow.
2. They are known as the root stalks of a plant.
3. They are horizontal as they grow perpendicular to the force of gravitation.
4. In plants like ginger, turmeric, etc., act as food storage units under the ground surface to get past harsh conditions.
5. As they are adapted stems, hence they help in asexual reproduction via vegetative propagation.
6. Due to their major ability to function as food storage units, they also provide nourishment to the plant in winter.

Final answer: Horizontal underground stem is called a Rhizome.