Find Sweet Gum Leaf stock photos and editorial news pictures from Getty Images. Each leaf blade has three lobes, with a broad, triangular lobe in the center. But the sap, which is called storax, is more than just a chewy candy: Sweetgum trees and their sap have been used for medicinal purposes for hundreds of years, and researchers continue to study the use of sweetgum trees in medical settings, including the use of the storax to fight multidrug-resistant bacteria. (Zones 5-9) Maple trees commonly have leaves with pointed lobes and with deep indentations between the lobes. low angle view of maple leaves on tree - sweet gum leaf stock pictures, royalty-free photos & images. Sweetgum: An Ancient Source of Beneficial Compounds with Modern Benefits.Pharmacognosy Reviews, vol. ,