with …

end leaflet usually missing:  -⋘  even-pinnate;
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 butternut or walnut genus Juglans (Juglans spp.)

Part of butternut/hickory/pecan/walnut  family Juglandaceae in bayberry / beech / birch / oak / walnut  order Fagales.

🗺 Map of species by county (🇺🇸 USA-48).

Uses by native peoples
(Ethnobotany database)

Juglans hosts caterpillars of 130 species
of butterflies and moths, in some areas.
  This plant is also known to be a host for (in areas where invasive) 🐝︎ spotted lanternfly (SLF)  Lycorma delicatula.

🔍︎ 🔍︎ images Discover Life Encyclopedia of Life Michigan Flora Minnesota Wildflowers Flora of North America NRCS PLANTS db Wikipedia