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

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Using this photo         This image has a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 (CC BY-NC-SA 3.0) license. If you have questions, contact Barry Breckling breckling[AT]

Polygonum aviculare ssp. depressum
©2009 Barry Breckling

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