difference between fibrous root and adventitious roo in tabular form

Fibrous root

Adventitious root

Formed due to repeated branching of radical

Formed from part of the plant other than radicle.

Always underground

May be underground or aerial

The roots are thin and thread like.

They have various modifications like stilt, prop, tubercular etc.

e.g. wheat plant

e.g. banyan,  grass etc.