juglans nigra(n = noun.plant) black hickory, black walnut, black walnut tree - North American walnut tree with hard dark wood and edible nut;
is a kind of walnut, walnut tree
has parts: black walnut
is a member of genus juglans, juglans

ballota nigra, betula nigra, brassica nigra, centaurea nigra, ciconia nigra, dalbergia nigra, fraxinus nigra, genus juglans, juglans, juglans californica, juglans cinerea, juglans regia, melanitta nigra, morus nigra, nigra, phyllostachys nigra, pinus nigra, populus nigra, populus nigra italica, prunus nigra, quercus nigra, salix nigra, sambucus nigra, substantia nigra