A grain is a small, hard, dry fruit –with or without an attached hull layer–harvested for human or animal consumption. A grain crop is a grain-producing plant. The two main types of commercial grain c
Various food grains at a market in India
Cereal grain seeds clockwise from top-left: wheat, spelt, oat, barley
A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods. They include rice, wheat, rye, oats, barley, millet, and maize. Edible grain
Grain
…attached hull layer–harvested for human or animal consumption. A grain crop is a grain-producing plant. The two main types of commercial grain crops are cereals and legumes. After being harvested, dry grains are more durable than other staple foods, such as starchy fruits (plantains, breadfruit, etc.) and tubers…
Harvesting a cereal with a combine harvester accompanied by a tractor and trailer.
Cereal grains: (top) pearl millet, rice, barley (middle) sorghum, maize, oats (bottom) millet, wheat, rye, triticale
Threshing of grain in ancient Egypt