Summary
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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.
Sources and Credits
- (c) Joshua Mayer, some rights reserved (CC BY-SA),
https://www.flickr.com/photos/wackybadger/21557930078/
- (c) davecz2, some rights reserved (CC BY-SA), uploaded by davecz2
- (c) Jason Whittle, some rights reserved (CC BY-NC-ND), uploaded by Jason Whittle
- (c) Superior National Forest, some rights reserved (CC BY),
https://www.flickr.com/photos/superiornationalforest/5097251189/
- (c) Dan Mullen, some rights reserved (CC BY-NC-ND),
http://www.flickr.com/photos/8583446@N05/2886806067
- (c) Wikipedia, some rights reserved (CC BY-SA),
https://en.wikipedia.org/wiki/Cirsium_muticum
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