Xanthium is a genus of flowering plants in the family Asteraceae, commonly known as cocklebur. These plants are typically found in temperate and tropical regions around the world. They are characterized by their rough, hairy leaves and distinctive burr-like fruits that can cling to fur and clothing, aiding in seed dispersal. The most well-known species within this genus is Xanthium strumarium, often referred to as common cocklebur. This plant is considered a weed in many areas due to its rapid growth and ability to thrive in disturbed soils. While it has some traditional medicinal uses, it can also be toxic if ingested in large quantities.