Not every green patch on tree bark is a sign of mold or decay. More often, it's lichen—a remarkable partnership between fungi and algae that quietly tells a story of clean air and ecological balance.. With its green bark, twisted branches, and long, scary-looking thorns, this tree seems like something out of a Tim Burton movie. The straight species, which can be seen near the Tropical Pavilion, has a looser, more open habit, and its older bark is a darker green with a braided appearance.
How to Identify Trees Beyond the Leaves Ever wanted to get to know the trees in NYC a little better? Most people only look at a tree's leaves to try to identify it, but there are plenty of trees in the city that are easy to recognize just by looking at their bark, buds, and branches. And you can even use these clues in the winter, when trees usually go dormant and lose their leaves.. Catching these early is a core part of any good tree care guide. Ultimately, this knowledge fosters a year-round appreciation for your landscape. It's a wonderful, eco-friendly way to identify a tree by its bark without disturbing the plant or its surroundings, allowing you to connect with the subtle, quiet beauty of the winter garden.