Thorny bushes are prickly or spiny plants that make ideal privacy hedges or living screens .
The thorns are on branches to protect the tree from damage.
The types of thorn bushes are honey locust, acacia, bougainvillea and firethorn etc.
This vegetation covers a large part of southwestern North America and southwestern Africa,the Indian subcontinent, South America, and Australia.
It is found in dry subtropical and warm temperate areas with a seasonal rainfall averaging 250 to 500 mm ( about 10 to 20 inches).