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The "beard" portion of the seed head of a cereal grain plant is called, collectively, awns. A single awn is the bristle portion of a seed of grain that extends up at the top point of this seed. The hull protects the endosperm, germ and bran portion of the grain seed. Cereal grains which have such "beards" or awns are wheat, barley, rye and triticale. Rice, corn, and oats do not have such awns due to the different characteristics of their inflorescences or flowering portion of the grass plant.

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11y ago

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