Invasive Pop Quiz

A friend's wife posted this online.  I answered (I can't resist such challenges).  I know the family from Hampshire-Mineral counties in West Virginia.  But they travels a lot, and I don't know where the photo is from.



Do you have any suggestions?  Or how would you answer?  (Scroll down to see my answer.)

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The link in the image above is http://www.invasive.org/browse/subinfo.cfm?sub=6440