Ragweed and Civilization

On the evening of Thursday the 19th of December, 2013, beginning at 7:30PM, the Philadelphia Botanical Club will have its monthly meeting, and Ken Frank will talk about a common herbaceous annual and its broader impacts on and implications for society, in a lecture titled “Ragweed and Civilization”.

For more information, see here:

http://darwin.ansp.org/hosted/botany_club/meeting.html

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