Sweetgum - Slender SilhouetteA Narrow, Upright Shade Tree with Brilliant Fall Color for Small Spaces Sweetgum Slender Silhouette is a distinctive, columnar selection of the native American Sweetgum, prized for its tall, narrow form and outstanding fall color. This deciduous tree maintains a tight, upright habit, making it ideal for landscapes where space is limited. With star shaped green foliage in summer that turns vivid shades of red, orange, and purple in fall, Slender