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Keywords from Image Description:
Glyceria canadensis HC. en Glyceria canadensis Michx Trin rattlesnake mannagrass usda gov imageID glcaahd tif USDANRCS PLANTS Database Hitchcock rev Chase Manual of the grasses of the United States USDA Miscellaneous Publication No Washington DC Hitchcock rev Chase Manual of the grasses of the United States USDA Miscellaneous