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The chestnut group is a genus (Castanea) of eight or nine species of deciduous trees and shrubs in the beech family Fagaceae, native to temperate regions of the Northern Hemisphere. Asiatic species Castanea crenata (Japanese chestnut), Castanea mollissima (Chinese chestnut), Castanea davidii (China), Castanea henryi (Chinese chinkapin, also called Henry's chestnut â China) and Castanea seguinii (also called Seguin's chestnut â China).
1 European species sweet chestnut (Castanea sativa) (also called Spanish chestnut in the US) is the only European species of chestnut, though was successfully introduced to the Himalayas and other temperate parts of Asia. 2  Unrelated, but externally similar species of horse chestnut are abundant around Europe.hestnut trees are of moderate growth rate (for the Chinese chestnut tree) to fast-growing for American and European species. Their mature heights vary from the smallest species of chinkapins, often shrubby, to the giant of past American forests, C. dentata that could reach 60 m.