with . . .
end leaflet usually missingeven-pinnate;  middle of leaflet curved a bit more than butternut   >   eastern black walnut Juglans nigra
end leaflet usually exists:      odd-pinnate;  middle of leaflet curved a bit less than eastern black walnut   >   butternut Juglans cinerea

Learn more about walnut/butternut genus Juglans

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Uses by native peoples
(Ethnobotany database)