Scientific Name: Eupatorium perfoliatum L.

Caption: Eupatorium perfoliatum, Thorough wort,

Photographer: uwdigitalcollections

Image Source: http://www.flickr.com/photos/uwdigicollec/3528515430/

Notes: Plate  To view the entire book, please visit American Medical Botany. 

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

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