When crushed, the leaves strongly resemble sassafras ("Sassafras albidum") in fragrance. Safrole can be obtained through natural extraction from "Sassafras albidum" and "Ocotea cymbarum". Another common tree seen along the trail is the sassafras ("Sassafras albidum"). "Sassafras albidum" is an important ingredient in some distinct foods of the United States. Virginia creeper ("Parthenocissus quinquefolia"), Sassafras ("Sassafras albidum"), and Corktree ("Genus Phellodendron"). Understory trees include sassafras ("Sassafras albidum"), hophornbeam ("Ostrya virginiana"), and green hawthorn ("Crataegus viridis").