burl
Sign in to saveAlso known as bur, burr, gnarl
right|thumb|200px|Burrs on a tree trunk in Norfolk, England
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right|thumb|200px|Burrs on a tree trunk in Norfolk, England
A burl (American English) or burr (British English) is a tree growth in which the grain has grown in a deformed manner. It is commonly found in the form of a rounded outgrowth on a tree trunk or branch that is filled with small knots from dormant buds. Burl formation is typically a result of some form of stress such as an injury or a viral or fungal infection. More scientifically, a burl is "the result of hyperplasia, a greatly abnormal proliferation of xylem production by the vascular cambium".
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Connections
Redwood National and State Parks
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cancer
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wood
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International Standard Book Number
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digital object identifier
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stress
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bark
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Norfolk
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mold
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branch
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Sequoia sempervirens
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OCLC, Inc.
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Q180686
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trunk
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xylem
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Quercus petraea
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JSTOR
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bibcode
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poaching
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lathe
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