Keywords: Glyceria borealis HC-1950.png en Glyceria borealis Nash Batchelder - small floating mannagrass 1950 http //plants usda gov/java/largeImage imageID glbo_002_avd 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 Glyceria borealis - botanical illustrations Manual of the grasses of the United States |