[Wikipedia] New South Wales native: Acacia baileyana or Cootamundra wattle is a shrub or tree in the flowering plant family Fabaceae. The scientific name of the species honours the botanist Frederick Manson Bailey. It is indigenous to a very small area in southern inland New South Wales, comprising Temora, Cootamundra, Stockinbingal and Bethungra districts. However, it has been widely planted in other Australian states and territories. In many areas of Victoria, it has become naturalised and is regarded as a weed, outcompeting indigenous Victorian species. (link added by Mary Ann Machi)

[Cal-IPC] Invasive: Acacia baileyana (cootamunda wattle) is a shrub (family Fabaceae) with yellow flowers and finely dissected leaves found in the coastal ranges, San Francisco Bay area and transverse ranges of California. It is native to Southeastern Australia. It favors scrub and chaparral habitat. It has long-lived seeds that accumulate in the soil and germinate after fires, hot weather or other disturbances. It spreads via ants, wind, water and dumped garden waste. (link added by Mary Ann Machi)