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| Canada Thistle |
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| Scientific Name | Family Name |
| Cirsium arvense | Aster Family (Asteraceae) |
| Map Produced By USDA, NRCS. 2001. The PLANTS Database, Version 3.1. National Plant Data Center, Baton Rouge, LA 70874-4490 USA. (http://plants.usda.gov) |
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| Cirsium arvense distribution area |
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