 The sycamore has been introduced to suitable locations outside Europe as an attractive tree for park , street or garden . These include the United States , Canada , Australia ( Victoria and Tasmania ) , Chile and New Zealand , Patagonia and the laurel forests of Madeira and the Azores . At the time of its introduction it was probably not appreciated that its prolific production of seeds might one day cause a problem to the landscape as it spread and out @-@ competed native species . The tree is now considered to be an environmental weed in some parts of Australia ( Yarra Ranges , Victoria ) and also Mount Macedon , near Daylesford , parts of the Dandenong Ranges and Tasmania , where it is naturalised in the eucalypt forests . It is also considered to be an invasive species in New Zealand , Norway , and environmentally sensitive locations in the United Kingdom . 
