The Cockleburs (Xanthium) are a genus of flowering plants in the family Asteraceae, native to the Americas and eastern Asia.
Xanthium strumarium Asteraceae Beneficial weed Carolina Parakeet Spine (biology) Flowering plant Herbaceous plant Carl Linnaeus Traditional Chinese medicine Annual plant Pollen Invasive species Poison Livestock Asterales Seed Pig Leaf Flower Americas Genus Magnoliopsida Asia North America Plant