Bursaria occidentalis

Bursaria occidentalis is a spiny shrub or tree in the family Pittosporaceae. It is found in Western Australia, growing from heights of 1.2 m to 8 m, on sandy and clayey soils. In arid areas it is often the sole tree in the landscape. Its cream-white flowers may be seen from August to December. 
The species was first described in 1978 by Eleanor Marion Bennett.