ECHINOCHLOA CRUSGALLI
39. Echinochloa crusgalli (L.) Beauv. BARNYARD GRASS.
A coarse annual with broad leaves; a weed in open meadows, cultivated fields and especially in waste land about buildings.
Leaves rolled in the bud-shoot. Sheath compressed, keeled, glabrous, smooth, pale green, split. Auricles absent. Collar conspicuous, broad, glabrous, light yellowish green. Ligule absent. Blade 8 to 15 mm. wide, 10 to 30 cm. long, glabrous, pale or yellowish green, keeled, not ridged; margins smooth or scabrous.