Close to 30 metres of Australian tree stands in the Raval, the most tightly built neighbourhood in Barcelona and close to the last place with room for anything this size.
River Red Gum
Seville and the province of Valencia each have a record holder for height, and both are the same Australian tree, growing thousands of kilometres from where it belongs. This page maps every river red gum on the site, 10 so far across 6 cities.
Eucalyptus camaldulensis follows the seasonal rivers of inland Australia across almost the whole continent, surviving drought by dropping whole limbs and resprouting from the base, which is a habit that makes municipal arborists nervous. Seville pruned its 50 metre specimen in 2025 specifically to reduce the risk of falling branches, and Valencia's crews need aerial platforms and help from the fire service to reach the top of theirs, 41 metres in a park in Benimamet. Barcelona's grew up inside the walled grounds of a charity house in the Raval, which is the only reason there was open soil for it in the densest neighbourhood in the city.
Barcelona
Naples
Six metres seventy-six round the trunk, which makes this the thickest tree on Naples' own register.
Seville
Seville's tallest tree is also one of its least visited, despite standing in the middle of the historic centre.
At 42 metres this street tree is the third tallest in Seville's own survey of its singular trees, an Australian eucalypt growing over an ordinary residential street named for the poet Pedro Salinas.
Two organisms are working on Seville's big river gums at once, and this one on the Guadalquivir bank carries both.
Valencia
At just over 41 metres tall, this eucalyptus is the tallest tree in the province of Valencia and the fourth tallest recorded anywhere in the wider region, a scale confirmed by the city's own mainte...
Cordoba
The thickest trunk in Cordoba's catalogue of singular trees belongs to an Australian.
Melbourne
Queen Victoria granted this ground to the people of Fitzroy in 1862.
The city register gives this tree a hundred years.
This one was probably never planted.
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