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Polygonum amphibium; Water Knotweed   (view details)   

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Using this photo         This image has a Creative Commons Attribution-NonCommercial 3.0 (CC BY-NC 3.0) license. If you have questions, contact Thayne Tuason gongadeets@gmail.com.

Polygonum amphibium
©2017 Thayne Tuason

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