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2016 Keir Morse   cc-by-nc-sa-3.0

Cirsium muticum (Swamp Thistle) is a species of biennial herb in the family Asteraceae. They are native to Saint-Pierre Et Miquelon, The Contiguous United States, and Canada. They have achenes. Flowers are visited by Yellow Bumblebee, Common Eastern Bumblebee, Melissodes desponsus, and Northern Amber Bumble Bee.

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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 14 attributes, including:

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