Sycamore Tree Without Balls . Inspect the width of the trunk. Remove as many blooms as you possibly can. SYCAMORE TREE SEED BALL Taken at Chestnut Hill Cemetery in… Flickr from www.flickr.com Young trees have smooth bark with a hint of green on the trunk. Sycamore trees have serrated lobed leaves that resemble maple leaves with three to five lobes. Let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that content.