Round, ball shaped, spiky seed heads of the American sycamore (Platanus occidentalis), three in a vertical cascade against light background Stock Photo - Alamy
Holly's Daily Draw: Sycamore or Sweetgum -- setting the record straight
Spiky balls on tree hi-res stock photography and images - Alamy
The Sycamore Squeeze – Sidewalk Nature
What to Do With Sycamore Balls?
The Difference Between a Sycamore Tree and a Sweetgum Tree | Complete Tree Care
California Sycamores: The perfect fall accessory – WildFresno
Tree Balls - Pt. I | Sycamore tree, Tree seeds, Landscaping plants
The Mean Seed of the Sweet Gum - The New York Times
Sycamore tree spiky balls of seeds in the Golden Hour during sunset Stock Photo | Adobe Stock