The modified roots that hang form horizontal branches and provide support to banyan tree are called
Hanging structures that support a banyan tree are called prop roots.
The stems of maize and sugarcane have supporting roots coming out of the lower nodes of the stem and are called stilt roots.
In Rhizophora, many roots come out of the ground and grow vertically upwards. Such roots are called pneumatophores and help to get oxygen for respiration.
Root hair helps in the absorption of water.