Nodding Thistle

Carduus nutans

  1. Biennial thistle with long tap root; thorny leaves fuse with the stem to create a winged stem; large magenta nodding flower heads on top of slightly branched plant.
  2. Hand pulling or mowing can stop seed set; herbicide control before seed set; biological controls are effective
  3. Saskatchewan Invasive Plant Species Guide
    Identification Guide for Alberta Invasive Plants
    WeedsBMP App BC – iOS | Android