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trees having usually edible nuts: butternuts; walnuts; hickories; pecans

the plant family Juglandaceae, characterized by deciduous trees having alternate, pinnately compound leaves, male flowers in tassellike catkins and female flowers in clusters, and edible nuts enclosed in a thick-walled or leathery husk, and including the butternut, hickory, pecan, and walnut.

walnut family,

a group of dicotyledonous, resinous trees and shrubs, found in north temperate regions. The family includes the walnut, hickory, and pecan.