Computer Generated Presentation with Script

Correct tree identification is important for landowners, homeowners, landscape professionals, naturalists, and many other Extension clientele. However, many anatomical features needed for quick field ID of deciduous trees are not available in winter. Fortunately, dichotomous keys exist for tree ID using only features found on dormant specimens. This PowerPoint presentation (uploaded here as a PDF along with a separate script) was part of a hands-on workshop on winter tree identiifcation. The lecture focused on the importance of native trees, an overview of the botanical terms used for winter tree ID, an explanation of dichotomous keys, and instructions on how to use online dichotomous keys and hand lenses. Following the lecture, the participants were guided by the instructor through the step-by-step process of identifying two species using twig specimens collected by the agent and Extension Master Gardener Volunteers. Participants were then given the remaining hour of the workshop to identify four other species from provided samples. Each participant had access to a hand lens (Hasting’s triplets) and their own specimens. Laptops with USB microscopes were provided and shared among 3-4 participants. Using the provided laptops or their own smartphone and tablets, participants made use of online keys developed by NC State University Professor of Plant Biology Dr. Alexander Krings. Master Gardener Volunteers were stationed at each table to assist participants. Four identical (repeated) workshops were held to meet demand. One hundred twenty-two participants attended in total, nearly all reporting increases in knowledge and over three-quarters indicating they would continue to practice tree ID using these methods.