Wheat has a more broader and "coarser" seed head than barley, and the tufts/bristles (called awns) are shorter in wheat than barley. Corn or Maize is a much larger cereal grass, with the seeds on a cob enclosed by a sheath. The awns are very floppy and finer than either wheat or corn. Corn can grow up to 10 feet in height whereas barley and wheat only grow up to 4 feet in height.
As far as deciphering individual grains, wheat is darker in colouration than barley. Corn is much different shaped than wheat or barley, having a rounded head as opposed to the sharp oval/diamond shape that wheat and barley have.
Wheat, Barley, Maize, RICE
Corn (maize), wheat, barley, and rice are a few.
Maize/corn, wheat, rice, barley, potatoes...
wheat, barley, sunflower, maize etc etc
Rice, Wheat, Maize, Barley
wheat, barley, paddy, maize etc.
The ingredients of Stella Artois are Water, Malted Barley, Maize, Hops. (no wheat)
maize, barley, wheat, oats, sugarcane
rice, wheat, maize, barley and bajra(millet).
Wheat,Maize,Rice,Barley
rice, wheat, maize, barley and bajra(millet).
Alfalfa, grasses, grains (wheat, barley, maize).