
Japanese term : Nejikan.
This is defined by a trunk of the tree which grows in a twisted style (but not exagerated into full coils , which is the Bankan style).
The existance of shari will exaggerate the effect, which in extreme examples can be described as the "barber pole" effect.
This is most often seen on juniper where the red bark contrasts vividly with the pale shari.
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