The term 'Chestnut Kin' refers to two different types of trees, the SORREL (6 letters) and the BEECH (5 letters). The SORREL is a deciduous tree that is native to Europe and parts of Asia, and is known for its reddish-brown bark and its edible nuts. The BEECH is also a deciduous tree, native to temperate regions of Europe, Asia, and North America, and is known for its smooth grey bark and its edible nuts. Both trees are members of the Fagaceae family, and both produce chestnuts.