1. North American walnut tree with hard dark wood and edible nut
   - black walnut tree, black hickory, Juglans nigra 
2. American walnut having a very hard and thick woody shell

Derived forms: black walnuts

Type of: walnut, walnut tree

Part of: genus Juglans, Juglans

Encyclopedia: Black walnut

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• summer cohosh
• summer crookneck
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• summer damask rose