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FILE - In this July 12, 2010 file photo, a butterfly sits atop the flower of an echinacea plant in a yard in Bainbridge Twp, Ohio. The largest study of the popular herbal remedy echinacea finds it won't help you get over a cold any sooner. (AP Photo/Amy Sancetta, File)

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Coloring coneflowers outside the lines

• By ncs-import
• May 27, 2011