[vc_row content_text_aligment="" use_row_as_full_screen_section="no"][vc_column][vc_column_text] Black walnut (Juglans nigra) Juglans nigra, the eastern black walnut, is a species of deciduous tree in the walnut family, Juglandaceae, native to eastern North America. It grows mostly in riparian zones, from southern Ontario, west to southeast South Dakota, south to Georgia, northern