Scientific Name: Carduus discolor (Muhl. ex Willd.) Nutt.

Caption: Cirsium discolor PASTURE THISTLE

Photographer: Frank Mayfield

Image Source: http://www.flickr.com/photos/gmayfield10/3254496380/

Notes: field image of Cirsium discolor PASTURE THISTLE at the James Woodworth Prairie Preserve - a lone specimen at bloom

Copyright: http://creativecommons.org/licenses/by-sa/2.0/

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