{"id":865,"date":"2017-10-10T14:51:19","date_gmt":"2017-10-10T19:51:19","guid":{"rendered":"https:\/\/allabouttrees.com\/?p=865"},"modified":"2022-02-14T10:36:08","modified_gmt":"2022-02-14T16:36:08","slug":"black-walnut-tree","status":"publish","type":"post","link":"https:\/\/allabouttrees.com\/black-walnut-tree\/","title":{"rendered":"Black Walnut Trees"},"content":{"rendered":"

BLACK WALNUT
\nJuglans nigra<\/h1>\n
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Family:\u00a0<\/span><\/div>\n
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Juglandaceae (walnuts)<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Description:\u00a0<\/span><\/div>\n
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A large tree with a straight trunk and rounded, open crown. The nuts, spicy odor, large feather-compound leaves, and chambered pith in the twigs help identify it.<\/p>\n

Leaves alternate, compound, 1\u20132 feet long, with 11\u201323 leaflets. Leaflets 3\u20135 inches long, 1\u20132 inches wide, broadest below the middle, the end leaflet smaller than side ones or absent; margin toothed; upper surface yellow-green; lower surface paler, hairy.<\/p>\n

Bark grayish-brown or black, grooves deep, ridges broad with sharp or rounded edges, roughly forming diamond-shaped patterns, chocolate-colored when cut.<\/p>\n

Twigs stout, rigid, brown to gray-brown, hairy; end bud about \u00bd inch long; pith light brown, chambered when cut lengthwise.<\/p>\n

Flowers April\u2013May. Male flowers in catkins, female flowers in a short spike on the same tree.<\/p>\n

Fruits September\u2013October, usually single or in pairs. A green rounded husk, 1\u00bd\u20132\u00bd inches across, covers the round, hard, bony, dark brown or black nut.\u00a0The kernel is oily, sweet, and edible.<\/p>\n

Similar species: Butternut, or white walnut (Juglans cinerea<\/em>),\u00a0is scattered and declining in the eastern two-thirds of Missouri, mostly in low and moist soils. It has rather cylindrical fruits, and the nut inside has 4 lengthwise ribs; leaf scars have the upper edge straight (not notched), bordered by a well-defined velvety ridge. The mild-tasting English (or Persian) walnut is the species\u00a0J. regia<\/em>. It is native to Eurasia and when cultivated in Missouri does not escape. The state of California grows nearly all of the US commercial supply of English walnuts. Walnuts are in the same family as hickories and pecans.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Key Identifiers:\u00a0<\/span><\/div>\n
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