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Polygonum aviculare ssp. depressum; Common Knotweed   (view details)   

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Using this photo         This image has a Creative Commons Attribution 3.0 (CC BY 3.0) license. If you have questions, contact Jean Pawek bjpawek[AT]comcast.net.

Polygonum aviculare ssp. depressum
©2011 Jean Pawek

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