Editors note: Leafsnap is an electronic field guide developed by Columbia University, the University of Maryland, and the Smithsonian Institution. The app includes images of leaves, flowers, fruit, petiole, seeds, and bark from different tree species, and features visual recognition software that helps users identify a species of tree by uploading images of a leaf. It shares data uploaded by users, including the location and species, with scientists mapping the distribution of flora across the country and lets users view species documented in their area. Leafsnap is a great tool to use for Citizen Science Day on April 14, 2018.
For years I’ve been fascinated by Leafsnap, a free app produced by the Smithsonian that lets users in the US and Canadian northeast identify trees by snapping pictures of their leaves. I live and teach in a downtown neighborhood and pass hundreds of trees every day on my walk to school. Sadly, other than the distinctive maple and some oaks, I could never tell one from another: they were just filed under the broad domain of “trees”. I’ve always admired environmentally literate folks who can distinguish between different species and better articulate their surroundings. Fortunately, since I discovered Leafsnap, I now make the occasional stop to identify a tree that catches my eye and educate myself, a lifelong city dweller, on what Frank Loyd Wright called “our best friend on earth.”
Image: Leafsnap.com