The walnut family contains about 60 species of trees in the family Juglandaceae, divided among seven genera. North American representatives are the walnuts (Juglans spp.) and hickories (Carya spp.). All of these species produce edible nuts and useful wood, and some are cultivated in orchards for the production of these crops.
Species in the walnut family are woody plants that develop as trees, and mostly grow in angiosperm-dominated forests in temperate and subtropical climates. The range of most species is the Northern Hemisphere, although a few species penetrate to the Andes of South America and the southwest Pacific. The wood of trees in the walnut family is strong and resilient and is highly prized as lumber. The t…
Six species of walnuts occur in North America. The black walnut (Juglans nigra) and butternut (J. cinerea) are widespread in eastern North America. The little walnut (J. microcarpa) and Arizona walnut (J. major) range into Texas and Arizona and south into Mexico. The California walnut (J. californica) and Hinds walnut (J. hindsii) have relatively localized distributions in southern California. The…
Various species of walnuts and hickories are economically important trees for both their wood and their edible fruits which may be gathered in the wild but are now mostly grown in plantations. The wood of black, English, and other walnuts is close-grained, dark-brown colored, and very strong. Walnut wood is used to manufacture lumber and veneers for fine furnitures and cabinets, and it is sometime…
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