Polygonum lapathifolium
![Image of knotweed family](https://beta-repo.eol.org/data/media/93/fa/d8/542.b93dba0c1eec82ae45ef5185faca4682.580x360.jpg)
Description:
Found next to the Santa Cruz river (Tucson Arizona) in a wet location. It was at about 750 meters in elevation. Oct 30, 2009
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- cc-by-nc-sa
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- Anthony Mendoza
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- Anthony Mendoza
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