Keywords: Muhlenbergia shreberi drawing.jpg line drawing of Muhlenbergia schreberi http //plants usda gov/java/profile symbol MUSC photoID musc_003_avd tif Hitchcock A S rev A Chase 1950 Manual of the grasses of the United States USDA Misc Publ No 200 Washington DC 1950 Public Domain U S Government PD-USGov Muhlenbergia schreberi Manual of the grasses of the United States |