walnut

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walnut,

common name for some members of the Juglandaceae, a family of chiefly deciduous, resinous trees characterized by large and aromatic compound leaves. Species of the walnut family are indigenous mostly to the north temperate zone, but also range from Central America along the Andes to Argentina and through tropical Asia to Java and New Guinea.

Common Species and Their Uses

Several trees of the Juglandaceae are of commercial importance for the edible nuts and for lumber. The "nuts"(they are actually drupelike), usually enclosed in a leathery or woody hull, include many of the most valuable food nuts of the United States—the walnut and the butternut of the walnut genus Juglans and the pecan, hickory nut, pignut, and mockernut of the hickoryhickory,
any plant of the genus Carya of the family Juglandaceae (walnut family); deciduous nut-bearing trees native to E North America and south to Central America except for a few species found in SE Asia. The pecan (C.
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 genus Carya. The single-seeded nuts contain no endosperm; the edible portion is the corrugated, meaty seed leaves of the embryo itself. Lumber is obtained chiefly from Juglans, Carya, and Engelhardia. The latter genus is now restricted to East Asia, but fossil trees have been found in the United States. Species of these and other genera (e.g., Pterocarya, the Asian wingnuts) are often planted as ornamental shade trees.

The walnut genus Juglans (from Lat. Jovis glans=nut of Jove) is the largest and most widely distributed genus of the family. The dark timber of the black walnut (J. nigra), found in hardwood forests in the eastern half of North America, and of the Persian, or English, walnut (J. regia), native to W Asia, is unusually hard and durable and is valued for furniture, interior paneling, gunstocks, musical instruments, and other uses. Black walnut has been the foremost cabinet wood of North America since colonial times.

The closer-grained English walnut, usually sold as lumber under the name Circassian walnut, is widely cultivated in S Europe and the Orient and has been introduced with great success into California, now the major producing area of the world. The nut of this tree is more easily extracted from the shell than that of the black walnut and is the one usually sold commercially for use as a table nut and for confectionery, flavorings, and sometimes pickling. A decoction of the leaves, bark, and hulls has been used for a brown wool dye and the crushed leaves for an insect repellent.

The butternut, or white walnut (J. cinerea), of approximately the same range as the black walnut, has a sweet and oily nut that is gathered locally but is not of commercial importance. The butternut is also timbered; the wood is softer than that of the black and English walnuts. Sugar is sometimes obtained from its sap, and the hulls yield a yellow to gray dye that gave color to the homespun of pioneers and to the "butternut" uniforms of some Confederate soldiers. The inner root bark, called butternut bark, has been used in domestic remedies, as have the hulls of the English walnut. Other American and Old World walnuts are also used and esteemed locally for timber, dyes, and food.

Classification

The walnut family is classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Juglandales.

What does it mean when you dream about a walnut?

A walnut has a significant resemblance to the human brain. In a dream a walnut may indicate a great deal of mental activity is being expended or, alternatively, that someone in the dreamer’s environment is a “nut.” In some cultures, to dream of walnuts is an omen of excessive joys and favors.

walnut

[′wȯl·nət]
(botany)
The common name for about a dozen species of deciduous trees in the genus Juglans characterized by pinnately compound, aromatic leaves and chambered or laminate pith; the edible nut of the tree is distinguished by a deeply furrowed or sculptured shell.

walnut

A tough, dark brown-to-black wood having high strength; does not split easily; has a fine-to-coarse open grain; takes a high polish.

walnut

1. any juglandaceous deciduous tree of the genus Juglans, of America, SE Europe, and Asia, esp J. regia, which is native to W Asia but introduced elsewhere. They have aromatic leaves and flowers in catkins and are grown for their edible nuts and for their wood
2. the wood of any of these trees, used in making furniture, panelling, etc.
3. a light yellowish-brown colour
4. made from the wood of a walnut tree
5. of the colour walnut
References in classic literature ?
He was reckoned very handsome; his person much admired in general, though not by her, there being a want of elegance of feature which she could not dispense with:but the girl who could be gratified by a Robert Martin's riding about the country to get walnuts for her might very well be conquered by Mr.
Dost thou not know the meaning of the walnut -- priest?
The pass was crowned with dense, dark forest--deodar, walnut, wild cherry, wild olive, and wild pear, but mostly deodar, which is the Himalayan cedar; and under the shadow of the deodars stood a deserted shrine to Kali--who is Durga, who is Sitala, who is sometimes worshipped against the smallpox.
At length the cloth is drawn, and a dish of walnuts and a decanter of rich-coloured sherry are placed upon the table.
One evening when we were picking out kernels for walnut taffy, Tony told us a new story.
A long-skirted, cabalistically-cut coat of a faded walnut tinge enveloped him; the overlapping sleeves of which were rolled up on his wrists.
They were perfectly round white things a trifle smaller than an English walnut.
The old walnut trees are all come down to make room for it.
The furniture once appropriated to the lower apartments had from time to time been removed here, as fashions changed: and the imperfect light entering by their narrow casement showed bedsteads of a hundred years old; chests in oak or walnut, looking, with their strange carvings of palm branches and cherubs' heads, like types of the Hebrew ark; rows of venerable chairs, high-backed and narrow; stools still more antiquated, on whose cushioned tops were yet apparent traces of half-effaced embroideries, wrought by fingers that for two generations had been coffin-dust.
Miss Sarah Pocket, whom I now saw to be a little dry brown corrugated old woman, with a small face that might have been made of walnut shells, and a large mouth like a cat's without the whiskers, supported this position by saying, "No, indeed, my dear.
There, seated before a walnut table he had brought with him from Hartwell, and to which, from one of those fancies not uncommon to great people, he was particularly attached, the king, Louis XVIII.
A dog, a woman, an' a walnut tree, Th' more yeh beat 'em, th' better they be!