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Image of Canada thistle
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Canada Thistle

Cirsium arvense (L.) Scop.

Biodiversity Heritage Library   cc-by

Cirsium arvense (Canada Thistle) is a species of perennial herb in the family Asteraceae. They are associated with freshwater habitat. They are native to Western North America and North America. They have achenes.

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  • URI: http://purl.obolibrary.org/obo/PO_0030107
  • Definition: a fruit which develops from a carpel or gyneocium and at maturity comprises a dry exocarp, a dry mesocarp, and a dry endocarp that are connected to a seed coat by a funicle
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EOL has data for 13 attributes, including:

Known occurrences, collected specimens and observations of Canada thistle. View this species on GBIF