Using a dichotomous tree key, we determined the physical characteristics of Buckthorn in order to better identify it in the field. This unwanted shrub from Europe has successfully invaded most temperate North American forests, displacing traditional species such as Blue Cohosh and Maple.
After the Lab session, we hiked to a deciduous forest invaded by both mature and immature Buckthorn plants. Payton set up a grid, within which we were free to remove small Buckthorn plants. Their deep fibrous roots provided a real challenge when hand pulling one by one. The numerous thorns on the Buckthorn’s branches made it even more difficult to grasp and pull, even when wearing heavy gloves.
Having worked up an appetite, we returned to the lab for a pizza lunch. During our meal we discussed the pros and cons of all the activities we attempted during the past year. We finished off our last session of the year by proposing and planning longer activities and salamander monitoring for the 2019-2020 season.