Question

what is different between underground stem and sub aerial stem​

Answer 1

Answer:

Rhizomes are underground dorsiventral stems or branches growing horizontally- under the surface of the soil. These are brownish in colour so that they are easily mistaken for roots. But, they are divided into nodes and internodes, there are brown scale leaves at the nodes and there are axillary as well as apical buds.

Underground .

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Answer 2

Explanation:

Subaerial stems are the stems that do not rise up but grow just above the ground. As a type of asexual propagation, these subaerial stolons, also called runners, often develop roots and leaves from their nodes.