The Saw Wave texture can create various banding or striped patterns with sharp jagged-edged patterns that can look like wood. You can adjust the patterns' position, scale, and rotation in the UVW Transform parameter. The Offset parameter can shift the surface pattern's position. (figure 1).
Figure 1: The Saw Wave texture applied to a Diffuse materialUsed for dull, non-reflecting materials or mesh emitters. on a plane primitive