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Cirsium muticum (Swamp Thistle) Cob-web hairs and thornless bracts of the flower heads help to distinguish this species from Cirsium vulgare and Cirsium arvense. In a low spot at the head of a trail through a restored fen. Also present in the fen. Angiosperms,Asteraceae,Cirsium muticum,Geotagged,Summer,Swamp thistle,United States,fen,flower,wetland Click/tap to enlarge Promoted

Cirsium muticum (Swamp Thistle)

Cob-web hairs and thornless bracts of the flower heads help to distinguish this species from Cirsium vulgare and Cirsium arvense. In a low spot at the head of a trail through a restored fen. Also present in the fen.

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The Swamp thistle

''Cirsium muticum'', also known as swamp thistle, marsh thistle, dunce-nettle, or horsetops, is a North American species of plants in the sunflower family, native to central and eastern Canada and the central and eastern United States.

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Similar species: Asterales
Species identified by Gary B
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By Gary B

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Uploaded Jul 31, 2019. Captured Jul 30, 2019 08:50 in 1500 Hwy 7, Zim, MN 55738, USA.
country flag of United States of America Explore United States of America 39,925 9,640 8
  • SAMSUNG-SM-G930A
  • f/1.7
  • 1/1727s
  • ISO50
  • 4.2mm
Captured in the summer. More summer photos.