Canada Thistle
Canada Thistle
Cirsium arvense
Sunflower Family - Asteraceae
Multiple lavender to pale magenta flower heads crown this smooth stemmed relatively tall plant. Flower heads (about 1" wide) all disk-type flowers. Leaves deeply cut, wavy edged, stalkless and elongated with many sharp spines.
(Photographed - July)
  Pathology Images Inc. 2000 to 2002