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see walnutwalnut,
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
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Tree up to 80ft (24m) with opposite leaves and sticky, egg-shaped fruit. Inner bark used as astringent to stop bleeding, rheumatism, pain. Nuts and bark are antiseptic, used to expel tapeworms, fungus, tumors.

butternut, white walnut

A moderately soft, medium-textured, low-density wood of light to pale brown color. The walnut-like grain is used particularly for decorative veneer.
References in periodicals archive ?
It is a wood that I describe as inviting, [although] it is in short supply because of the butternut fungus.
And although a few researchers, like Ostry, are scrambling to understand the disease and find solutions, the epidemic is leveling butternuts so rapidly that they could pass into oblivion before a cure is found.
We don't know if resistant trees even exist," Ostry says, but he is attempting to locate healthy butternuts in order to obtain scion wood.
Researcher Mike Ostry would like to hear from anyone owning healthy butternuts that have the following criteria:
A half hour later, we stood at the base of a wide-spreading butternut nestled amid white oaks overlooking the Red Cedar River.
As we walked back to her car, we passed other, scattered butternut trees, and gloom descended on us.
Unfortunately, butternut canker (actually a fungus) appears to be doing a more thorough job of eliminating its host than even the chestnut and elm diseases.
There's an awful lot we don't know about butternut canker," said Ned Tisserat, a Kansas plant pathologist.
As a general rule, the butternut tolerates colder climates and rockier soil than its close relative, the black walnut.
You would think that scattered butternut trees would be protected by their isolation, but they are catching the canker disease everywhere," Ostry said.
The butternut fungus has traits that set it apart from other, better-known tree diseases.