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 |



