Plants in arid areas, such as deserts, often have to adapt to survive in the harsh environment. One type of plant that is well-suited to these conditions is the cactus, which has evolved to store water and thrive in hot, dry climates. CACTI are a type of succulent plant, meaning they have thick, fleshy stems and leaves that help them retain moisture. They also have spines that protect them from predators and help them conserve energy.