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Arboretum
"A man does not plant a tree for himself, he plants it for posterity." - Alexander Smith
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Black Walnut
(Juglans nigra)
Donated by
Ralph's Hair Kut Kove
Tree Map Location: #
1
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Leaf:
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Alternate, pinnately compound, 12 to 24 inches long with 10 to 24 leaflets (poorly formed or missing terminal leaflet), leaflets are ovate-lanceolate, finely serrate, and 3 to 3 1/2 inches long, rachis is stout and somewhat pubescent; yellow-green to green above, slightly paler below.
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Flower:
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Monoecious; males are single-stemmed catkins, 2 1/2 to 5 1/2 inches long; females on short spikes near twig end, yellow-green in color, appearing in late spring.
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Fruit:
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Round, 2 to 2 1/2 inches across, with a thick, green indehiscent husk. The husk contains an irregularly furrowed, hard nut that contains sweet, oily meat (edible), mature in late summer to fall.
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Twig:
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Stout, light brown, with a buff-colored chambered pith; buds are tan, and large with a few pubescent scales; leaf scars are 3-lobed, resembling a "monkey face".
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Bark:
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Brown on surface, darker brown when cut, ridged and furrowed with a rough diamond pattern.
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Form:
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A medium to large tree up to 100 feet in height that develops a straight, clear bole with a narrow crown under competition, twigs and branches quite stout.
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Source:
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College of Natural Resource Virginia Polytechnic Institute and State University
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To participate in the Kaskaskia College Arboretum please contact:
Office of Institutional Advancement
618-545-3069
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