Quiet autumn days in naked forest is an important period for woodcarvers.
This is the time to search some blanks for future crafts: bowls, carved ornaments, knife arms. Raw materials for them are unusual growths of tree trunk – different type of burls.
These abnormalities are tissue tumors harmless to a tree or traces of integrity of the trunk, which caused rapid growth of tissues and activation of sleeping buds at the site of injury. They can be separated from a trunk with a saw and than is needed to cover the dissected surface of a tree with tar.
Layered burls are usually located in the lower part of a trunk and has a symmetrical rounded shape. Formation with a similar structure of wood can also be found on growing trunks, which for several years have been tightly tightened with wire. Layered burl's cut after the treatment resembles a bone: it seems slightly translucent.
The surface of an eyed burl often consists of many small, short sprouts, some of which form individual thin twigs. Its shape is usually irregular, it can be located both on the trunk and on the branches of the tree. On the cut, a complex structure of wood is exposed, which carvers compare to a frosty pattern, eyes, lace.