Thorn forest

A thorn forest is a dense scrubland with vegetation characteristic of dry subtropical and warm temperate areas with monsoonal rainfall averaging 300 to 700 mm (12 to 28 in). The trees are often 6 to 10 m (20 to 33 ft), widely spaced, and have thick bark, small leaves, or spines to reduce water loss and protect themselves from grazing animals. Common plants include acacias, euphorbias, date palms and cacti (in the Americas). Thorn forests are generally transition zones between deserts and more fertile tropical/subtropical deciduous forests.