Question

Distinguish between rhizome and stem tuber.

Answer 1

Rhizome:

1. The main underground stem that creeps horizontally below the surface of the soil is the rhizome.
2. This is fleshy and helps in storage.
3. For example, ginger.

Tuber:

1. The underground part of the root of the structure derived from the tip of underground branches is the tuber.
2. This helps in the storage of starch.
3. For example, potatoes and beetroot.

Rhizome	Stem tuber
1.Rhizomes are the plant's heavy underground stems.	1.The tuber is the fleshy portion of the plant that stores or supplies food.
2.They are straight underground stems with non-green, fleshy nodes and internodes.	2.The potato is one of the most widely grown tubers for food.
3.They are made up of terminal buds and run parallel to the ground.	3.Tubers are starchy plant stems that have been enhanced.
4.They are brownish and are used in conjunction with apical buds.	4.The lower half of the potato is covered in earth, which improves the adventitious branches.