what tree do chestnuts come from

Chestnuts come from the chestnut tree, which is a deciduous tree in the genus Castanea, belonging to the beech family Fagaceae. The chestnut tree is native to temperate regions of the Northern Hemisphere and is known for producing edible nuts. There are different species of chestnut trees, including the American chestnut, European chestnut, Chinese chestnut, and Japanese chestnut. The American chestnut, in particular, was once a dominant tree in the ecosystem of the eastern deciduous forest but was devastated by chestnut blight, a fungal disease that came from Japanese chestnut trees introduced into North America from Japan.