Chestnuts

Chestnuts are deciduous trees and shrubs of the Castanea genus, belonging to the Fagaceae family.

An excerpt from the article 17 facts about chestnuts

The Fagaceae family includes economically important types of trees that are a source of wood raw material (including beeches and oaks). Many species also provide edible seeds, especially the sweet chestnut and Chinese chestnut.

The name chestnut also refers to the edible nuts they produce.