How many plants that have thorns?

There are thousands of plant species that produce thorns, as thorns are a common adaptation found in many families. Notable examples include roses, hawthorns, and various cacti. While it's difficult to provide an exact number, thorns can be found in a wide range of plant types, from trees and shrubs to succulents. Overall, the diversity of thorny plants is significant, reflecting their evolutionary benefits for defense against herbivores.