rings in bark of alder buckthorn

rings in bark of alder buckthorn

Observation - rings in bark of alder buckthorn. Description: rings like this were abundant on alder buckthorn. The bark had been removed but the rings were not complete - limited to 80-90% of the circumference. I do not consider there is any chance that they are an artefact caused by humans.

rings like this were abundant on alder buckthorn. The bark had been removed but the rings were not complete - limited to 80-90% of the circumference. I do not consider there is any chance that they are an artefact caused by humans.