Beechnuts are the seeds of the beech tree, which belongs to the genus Fagus. These small, triangular nuts are encased in a spiky husk and typically ripen in the fall. They are edible and have a sweet, nutty flavor, making them a food source for various wildlife, including squirrels and birds. Humans can also consume beechnuts, though they should be processed to remove any bitterness. They can be eaten raw, roasted, or ground into flour. In some cultures, beechnuts have been used in traditional dishes and as a source of oil, highlighting their versatility in both nature and cuisine.