Yellow Birch - Piece D
#39 - Piece D: Yellow birch
Wounded by Al Shigo years prior to they subsequently being harvested immediately prior to a future annual Tree Biology Workshop at Appalachian State University. Al personally sawed through the wound and split the piece axially through the wound before pointing out to the students the various feathers of the pattern of discolorations, the barrier zone and reaction wood which formed as per the CODIT model. Al then told students to do likewise and draw their findings.