Map Maple - April 2025
Maple (Acer spp.) is an ecologically and economically important genus of trees that have distinctive palmate leaves and winged fruits. In early spring, many species produce flowers while the tree is still leafless.
There are seven species of maple that grow spontaneously in New York City, four of which are native. Seven more introduced species are planted throughout the city, but are rarely found outside of cultivation.
Species you’ll see in natural areas and along city streets include Norway maple (A. platanoides), a common street tree turned invasive; red maple (A. rubrum), named for its distinctive buds, flowers, and fruits; and boxelder (A. negundo), the only North American maple with compound leaves. How many maples can you find this April?
How to Get Started
- Download the iNaturalist app or register at iNaturalist.org.
- Photograph maple anywhere in New York City. Use a magnifier over your camera phone lens to get close-up photos of leaves, sporangia, and other features.
- Upload your observations to iNaturalist.
- Respect wildlife (do not touch, feed, or disturb animals, and keep a safe distance).
WHAT IS THE GOAL?
- Help document as many species of maple as possible by April 30.
- The New York City EcoFlora project seeks to enhance the ecological literacy of all New Yorkers and to compile new and original data on the City’s flora and ecological dynamics.
Additional Information