box tree burl

navigate by keyword : almost appear attached bark beneath box bulbous burl burls caused causes certain coast common condition connected covered dies discovered encircle entire even falls form from fungus generally ground groups grow infestation injury insect largest like malignancy may moisture mold new over present protrusions redwood redwoods results roots rope sempervirens size some sometimes species stress system these tree trees trunk type types undergoing underground virus wood

Burl from Box Tree Royalty Free Stock Photo

Box Elder Tree Burl Wood Northern Utah Royalty Free Stock Photo

Pine wood wall background with vignetting in grunge style Royalty Free Stock Photo

A burl results from a tree undergoing some form of stress. It may be caused by an injury, virus or fungus. Most burls grow beneath the ground, attached to the roots as a type of malignancy that is generally not discovered until the tree dies or falls over. Such burls sometimes appear as groups of bulbous protrusions connected by a system of rope-like roots. Almost all burl wood is covered by bark, even if it is underground. Insect infestation and certain types of mold infestation are the most common causes of this condition.In some tree species, burls can grow to great size. The largest, at 26 ft occur in coast redwoods and can encircle the entire trunk; when moisture is present, these burls can grow new redwood trees