| elymus | (n) tall tufted perennial grasses (such as lyme grass or wild rye), Syn. genus Elymus |
| canada wild rye | (n) North American wild rye, Syn. Elymus canadensis |
| giant ryegrass | (n) stout perennial grass of western North America, Syn. Leymus condensatus, Elymus condensatus |
| intermediate wheatgrass | (n) Asiatic grass introduced into United States rangelands for pasture and fodder, Syn. Elymus hispidus, Agropyron intermedium |
| medusa's head | (n) weedy rye grass having long bristling awns, Syn. Elymus caput-medusae |
| sea lyme grass | (n) a dune grass of the Pacific seacoast used as a sand binder, Syn. European dune grass, Elymus arenarius, Leymus arenaria |
| slender wheatgrass | (n) North American grass cultivated in western United States as excellent forage crop, Syn. Agropyron trachycaulum, Elymus trachycaulos, Agropyron pauciflorum |