From what is shown, looks suspiciously like it. A closer pic of the leaves would be definitive. Here, we'd be practically arrested if it was found growing on our properties. Of course, it must belong somewhere...

"Parkinsonia is a Weed of National Significance. It is regarded as one of the worst weeds in Australia because of its invasiveness, potential for spread, and economic and environmental impacts. Parkinsonia has the potential to invade more than three quarters of mainland Australia.

Agriculture: Plants can form dense impenetrable thickets on rangelands and wetlands, making areas of land inaccessible for people and animals. Thickets can be up to several kilometres across. Cattle are difficult to muster in paddocks where Parkinsonia infestations are thick. Access to watering points is impaired by the thickets which also shade out valuable pastures and displaces native vegetation when left untreated. Parkinsonia can dam watercourses, cause erosion, and lower water tables. A very hardy plant that can withstand long dry spells. Seeds remain viable for many years (Smith 2002). Parkinsonia infestations provide refuges for feral animals especially pigs (CRC 2003; Deveze 2004)."

Very Nasty Weed in Oz