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Common Name: Canada Thistle
Scientic Name: Cirsium arvense
Colors: Red
Months Appearing: October

Non-native. Perennial. Also called Field Thistle. Up to 5 feet tall.

Can form dense colonies crowding out native plants.

Flower is in a head about 3/4 inches diameter.

Leaves are stalkless with yellow spines on wavy edges.

Damp areas. Arcadia, Michigan. october 11, 9919, 9918.