“Black walnut trees will produce walnuts encased in a green semi-hard shell,” notes St. Clair. “They will remain on the tree in the growing season and then fall off the tree in fall.

Carefully separate shell bits from the nuts ... the eastern American black walnut tree (Juglans nigra) grows in Hardiness ...

On this winter edition of ID That Tree, Purdue Extension forester Lenny Farlee uses black walnut and eastern cottonwood twigs to show you tips on how to identify native Indiana trees with alternative ...