| bitternut | (noun) hickory of the eastern United States having a leaves with 7 or 9 leaflets and thin-shelled very bitter nuts | Synonyms: bitter hickory, bitter pignut, bitternut hickory, Carya cordiformis, swamp hickory |
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| butternut | (noun) oily egg-shaped nut of an American tree of the walnut family | - |
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| (noun) North American walnut tree having light-brown wood and edible nuts; source of a light-brown dye | Synonyms: butternut tree, Juglans cinerea, white walnut |
| mockernut | (noun) smooth-barked North American hickory with 7 to 9 leaflets bearing a hard-shelled edible nut | Synonyms: big-bud hickory, black hickory, Carya tomentosa, mockernut hickory, white-heart hickory |
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