Eryngium aquaticum (Snakeroot, Marsh Rattlesnake-master)

Eryngium aquaticum, commonly known as Snakeroot or Marsh Rattlesnake-master, is a species of flowering plant in the Apiaceae family. It is a perennial herb that typically grows in wetland habitats, such as marshes and wet meadows. This plant has distinctive spiky leaves and produces small, inconspicuous green flowers. It is known for attracting butterflies and bees.