The term "thorny plant" refers to various species of plants that have sharp, pointed structures called thorns. These thorns serve as a defense mechanism against herbivores, helping to protect the plant from being eaten. Common examples of thorny plants include roses, cacti, and blackberries. Thorny plants can be found in many environments, from deserts to forests. They often have adaptations that allow them to thrive in harsh conditions, such as reduced leaf size or water-storing capabilities. These plants play important roles in their ecosystems, providing habitat and food for various animals.