Photo and Download Link
Polygonum pensylvanicum L. -
Pennsylvania smartweed
POPE2
Robert H. Mohlenbrock. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln. Courtesy of USDA NRCS Wetland Science Institute. Usage Requirements.
![Large Photo of Polygonum pensylvanicum](https://webarchive.library.unt.edu/eot2008/20090902141336im_/http://plants.usda.gov/gallery/large/pope2_001_lhp.jpg)
The image above will suffice for many uses. If you need a higher
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click on the link below. Usage Requirements.
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