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Photo and Download Link
Polygonum glabrum Willd. -
denseflower knotweed
POGL10
Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. Courtesy of USDA NRCS Wetland Science Institute. Usage Requirements.
The image above will suffice for many uses. To download the original size of this image, click on the link below. Usage Requirements.
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