Trunk fusion crosscut


Fused_chestnut_trees_-_2_-_Auró

Two fused Chestnut trees.

I wanted to show a crosscut of a trunk fusion. The two photos used here are borrowed from Wikipedia. I was going to crosscut my Dawn Redwood 2 seedling test piece but I decided to let them grow 1 more year before cutting.

If you double click the images you will get a larger pic and be able to better see the actual tree rings and and how they fused. It would be a little easier to see the tree rings if the chainsaw cuts had been smoothed out, but hey we have to work with what we have.

Fused_ashtrees_-_Auró

Two fused Ash trees.

In both these examples the trees fused naturally in the wild. This is called inosculation, where trees that are growing close together fuse and become one. It is very common to see this in nature. This usually occurs at the base of the trees and discontinues a foot or two up. The roots lock the trunks in place and create pressure to fuse. There is less pressure further up and trees as they are wont to do follow the path of least resistance and grow apart. This is often referred to as a split trunk or twin trunk when in fact many times it is actually 2 separate trees. If you count the tree rings you will see that these trees were about ten years old before they began fusing.

Try to imagine 30, 50 or even 100 seedlings fusing together in a circle to form a trunk fusion bonsai.

Have fun!

Greg Logo

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