Eucalyptus tetrodonta

Eucalyptus tetrodonta, commonly known as Darwin stringybark, is a medium-sized to tall evergreen tree in the Myrtaceae endemic to the tropical north of Australia, where it forms the dominant canopy species of vast areas of open eucalypt savanna woodland across the Top End of the Northern Territory, the Kimberley region of Western Australia and northern Queensland. Trees grow 15 to 25 metres tall with a straight trunk to 60 centimetres in diameter; the persistent bark is thick, fibrous and longitudinally furrowed, grey to grey-brown, extending from the base up onto the smaller branches in long stringy strips that give the tree its common name. Juvenile leaves are opposite and ovate, while adult leaves are alternate, long-petiolate, lanceolate, 7 to 22 centimetres long, dull green to slightly glossy and with the same colour on both surfaces. Creamy white flowers are borne in axillary umbels of three to seven flowers on flattened peduncles; the buds bear a distinctively four-ribbed conical or beaked operculum that gives the species its epithet 'tetrodonta'. The fruit is a cylindrical to barrel-shaped woody capsule 8 to 14 millimetres long with included valves.