wheatgrass, ree wheatgrass, perennial grass
Ree wheatgrass, Agropyron intermedium and A. trichophorum, is a new pasture and hay grass released by the South Dakota Agricultural Experiment Station. It is closely related botanically to slender wheatgrass, Agropyron trachycaulum, and western wheatgrass, Agropyron smithii, both native to South Dakota and crested wheatgrass, Agropyron cristatum, native to the cold, dry plains of Russia and Siberia.
South Dakota State College of Agriculture and Mechanic Arts, Agricultural Experiment Station
Franzke, C. J., "Ree Wheatgrass: Its Culture and Use" (1945). Agricultural Experiment Station Circulars. 55.