Eucalyptus smithii

Eucalyptus smithii, the gully gum, is a medium to tall evergreen tree of the myrtle family (Myrtaceae) native to south-eastern Australia, from the tablelands west of Sydney south into eastern Victoria, where it grows in gullies and on lower slopes in eucalypt forest. It has rough, fibrous to flaky bark over the lower trunk that gives way to smoother bark on the upper limbs. Juvenile leaves are narrow and stem-clasping, while adult leaves are narrow-lanceolate, glossy green and pendulous, strongly aromatic with abundant oil glands. White flowers are borne in small clustered umbels, followed by small, cup- to bell-shaped woody capsules (gum nuts). The leaves are steam-distilled commercially to produce a high-cineole (eucalyptol) essential oil.