Eucalyptus globulus, common name "Tasmanian blue gum", is an iconic Australian, medium to tall tree that grows 15 to 70m high with, usually, the top third crown and the lower portion bare trunk. The blue/grey juvenile leaves are large, up to 15cm by 10cm, but the adult leaves are green, sickle shaped, up to 25cm by 3cm. The large buds are glaucous and warty, each with a flat cap that has a distinctive knob that flips off to reveal a large white petal-less flower in late spring to early summer. The large, up to 3cm, fruit are also glaucous with distinctive ribs and flattish or slightly raised valves. This species is not allowed to be grown in Hobart domestic gardens due to its large size, invasive roots and propensity to drop limbs. It grows throughout the Knocklofty Reserve, especially on the wetter slopes such as the southern and eastern slopes of the summit.