Black Walnut Tree Facts
The black walnut tree, which has the scientific name Juglans nigra, is a deciduous tree of the eastern half of United States. The black walnut, prized for its brown fine-grain textured wood, bears nuts that ripen in the autumn.
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Size
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The black walnut can grow as tall as 100 feet and have a trunk that is in the range of two to three feet in diameter. The leaves are up to two feet long, and one stem contains between 15 and 23 leaflets.
Leaves
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The leaflets are opposite each other on the twig with one odd leaflet extending from the end of the stem. Botanists describe this as odd pinnately compound leaves.
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Range
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The range of the black walnut is from southern New York State west to the Midwest. It extends as far south as Texas and across the southern tier of states north of the Gulf Coast.
Trunk
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The bark of a matured black walnut tree will have many furrows on it and can vary between a dark brown color and black.
Fruit
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The fruit will have a nearly round shape and is almost two inches across. A greenish-yellow fleshy husk surrounds the nut, which itself encompasses the seed of the tree.
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