Castanea sativa, a deciduous tree with edible deep brown nutlike fruits. The fruits have a little white, fluffy tail. / The fruit of this tree.

A bird from the family Rallidae, Eulabeornis castaneoventris.

Any of several tree species of genus Aesculus, especially Aesculus hippocastanum, common in temperate northern hemisphere. / The large nutlike seed of these trees.

The edible seed of a tropical tree, Pachira aquatica, also known as the money tree.

The edible seed of a tropical tree native from Malaysia across the southern Pacific, Inocarpus fagifer.

A disease of the American chestnut tree, mainly caused by the pathogenic fungus Cryphonectria parasitica.

(uncountable) Chinese water chestnut (Eleocharis dulcis), grown for its edible corm, used in Asian cooking. / (countable) A corm of a plant of this species. / A water caltrop (Trapa natans).

An African flowering tree often planted as an ornamental, Calodendrum capense

plural of chestnut-backed antshrike

A large Australian tree with showy flowers and poisonous seeds, prized for its dense, attractive wood, Castanospermum australe.