MIKE BOYATT / AGSTOCKUSA / SCIENCE PHOTO LIBRARY MIKE BOYATT / AGSTOCKUSA / SCIENCE PHOTO LIBRARY
Harvesting wheat. Combine harvesters being used in the late afternoon to harvest mature wheat (Triticum sp.). Wheat is a grass, and is one of the world's major cereal crops. The grains are rich in carbohydrates and can be ground to make flour, a major ingredient in bread and many other food products. Photographed in the upper midwest USA.
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