with …
end leaflet usually missing-⋘ even-pinnate;  leaflets=sub-opposite;  middle of leaflet curved a bit more than butternut
eastern black walnut  Juglans nigra

end leaflet usually exists:     -⋘- odd-pinnate;    leaflets= opposite;  middle of leaflet curved a bit less than eastern black walnut
butternut  Juglans cinerea

Learn more about walnut/​butternut genus Juglans (Juglans spp.)

Part of hickory/​pecan/​walnut/​butternut  family Juglandaceae.

Uses by native peoples
(Ethnobotany database)
  Juglans hosts caterpillars of 130 species
of butterflies and moths, in some areas.

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