[Wikipedia] Australia Native, Introduced Elsewhere: It is native to Australia, but it can be found in other parts of the world as an introduced species, often growing in disturbed and waste areas such as roadsides and lots. It is known from many parts of North America and Europe, and it was recently spotted in Iran for the first time, in the M?zandar?n Province.[1] It is thought to have first arrived in Europe with imports of wool from Australia.[1] (link added by Mary Ann Machi)