BROMUS INERMIS
25. Bromus inermis Leyss. Awnless Bromegrass, Smooth Bromegrass, Hungarian Bromegrass.
A strong perennial with creeping scaly rootstocks, growing well in the various soil types, thriving best, however, in loose sandy loam; used as a pasture and meadow plant but escaping to fence rows and roadsides where it becomes so persistent as to be a weed.
Leaves rolled in the bud-shoot. Sheath not compressed, slightly or not at all keeled, glabrous or the lower rarely sparse-pubescent, scabrous, closed to near the summit. Auricles absent or rarely rudimentary. Collar narrow, glabrous, light green, divided. Ligule membranous, short (about 0.5 mm. long), obtuse, entire or slightly lacerate. Blade 4 to 12 mm. wide, 15 to 40 cm. long, flat, tapering to a sharp point, glabrous but sometimes minutely pubescent on both surfaces, dark green, almost ridgeless above, slightly keeled below; margins scabrous.
This grass is distinguished from the other species of Bromus by its glabrous, or nearly glabrous, sheaths and blades.