Black walnut, Juglans nigra from Traité des Arbres et Arbustes que l’on cultive en France en pleine terre… https://www.rawpixel.com/image/568525/black-walnut-tree-branchFree Image from public domain licenseBlack walnut branch plant transparent png https://www.rawpixel.com/image/568497/black-walnut-tree-branchView licenseVintage black walnut branch plant illustration https://www.rawpixel.com/image/568455/black-walnut-tree-branchView license