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Keywords from Image Description:
Pappophorum vaginatum drawing. en Drawing of Pappophorum vaginatum de Zeichnung von Pappophorum vaginatum usda gov imageID pamuavd tif USDANRCS PLANTS Database Hitchcock rev Chase Manual of the grasses of the United States USDA Miscellaneous Publication No Washington DC PDUSGov Pappophorum vaginatum Manual of the grasses of