Abstract The oils of Leptospermum coriaceum (F. Muell. Ex Miq.) Cheel, L. fastigiatum S. Moore, and L. nitens Turcz. were analyzed by GC and GC/MS. The oil of L. coriaceum contained Î±-pinene (25.4%), 1,8-cineole (11.5%) and globulol (15.4%) as major components, whereas L. fastigiatum and L. nitens oils were found to contain 82.8% and 64.8â70.6% Î±-pinene, respectively.