Platanus occidentalis (Sycamore)
4. Now walk along the street to the place where cars pull up to let people off at the main entrance of Galvin Hall. Across the street at the corner of the parking lot you can see: Platanus occidentalis (Sycamore). You can also see two specimens of this species on the Galvin Hall side of the street growing from a fenced hole in the pavement. This tree has alternate simple leaves that look somewhat like maple leaves. The fruits (unlike maple fruits) are one inch diameter hairy balls. Look at the bark. It has mottled green patches. This is the only large tree in our area with green bark, making it fairly easy to identify even in the winter when there are no leaves on the tree. Sycamores are fast growing and tolerate air pollution quite well.