Acacia nilotica or acacia arabica is a gum arabic tree ( babul ) and it is found in sub tropical and tropical parts of Asia and some parts of African continent.
 
Acacia nilotica's tree can grow to a height of anywhere between 5 meter to 20 meter. The tree can tolerate a drought but can only survive to an extent in frost conditions.
 
The crown of nilotica tree is low and is of somewhat in the shape of an umbrella.
 
Highly popular for its medicinal properties it is very popular in Indian ayurvedic system of medicine.