Keywords: Oryzopsis asperifolia HC-1950.png en Oryzopsis asperifolia Michx - roughleaf ricegrass 1950 http //plants usda gov/java/largeImage imageID oras_002_ahd tif USDA-NRCS PLANTS Database / Hitchcock A S rev A Chase 1950 Manual of the grasses of the United States USDA Miscellaneous Publication No 200 Washington DC Hitchcock A S rev A Chase 1950 Manual of the grasses of the United States USDA Miscellaneous Publication No 200 Washington DC 1950 PD-USGov Uploaded with UploadWizard Oryzopsis asperifolia Manual of the grasses of the United States |