Acacia pycnantha Benth.
Golden Wattle

Reference
London J.Bot. 1:351 (1842)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Shrub or tree, 2-8 m high. Fl. yellow, Jul to Oct.

Amanda Spooner, Descriptive Catalogue, 13 August 1997
Image

Distribution

IBRA Regions
Avon Wheatbelt, Coolgardie, Esperance Plains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.
IBRA Subregions
Eastern Goldfield, Eastern Mallee, Katanning, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren, Western Mallee.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Bridgetown-Greenbushes, Brookton, Broomehill-Tambellup, Busselton, Capel, Coolgardie, Cranbrook, Donnybrook-Balingup, Esperance, Harvey, Kalamunda, Katanning, Kojonup, Kulin, Manjimup, Mundaring, Nannup, Narrogin, Plantagenet, Waroona, West Arthur, Wongan-Ballidu.

Management Notes (for the Swan NRM Region)

General Biology. Growth form. Shrub/Small tree. Reproduction. Seed. Dispersal. Water, birds, ants, wind, garden refuse, soil movement. Time to first flowering. 3 years. Vegetative regeneration strategy. Resprouts. Seedbank persistence. Long, 5+ years. Fire response. Fire stimulates mass germination of soil stored seed. Adult plants can resprout following fire.

Additional information. Origin. Eastern Australia. History of use/introduction. Garden escape. Similar native species. Acacia saligna.

Suggested method of management and control. Hand pull seedlings. Drill and fill with 50% glyphosate. Older plants can be ringbarked. Read the manufacturers' labels and material safety data sheets before using herbicides. For further information consult the Australian Pesticides and Veterinary Medicines Authority to determine the status of permits for your situation or state.

Management Calendar

Calendar Type Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Comments
Flowering             O Y Y Y O    
Fruiting Y                 Y Y Y  
Optimum Treatment O O O Y Y Y Y Y Y        

Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.

 

References

  • Brown, K. & Brooks, K. (2002) Bushland Weeds: A Practical Guide to their Management. Environmental Weeds Action Network, Greenwood.
  • Hussey, B.M.J., Keighery, G.J., Dodd, J., Lloyd, S.G. & Cousens, R.D. (2007) Western Weeds. A guide to the weeds of Western Australia. 2nd Edition. The Plant Protection Society of Western Australia, Victoria Park.
  • Maslin, B.R. (2001) Wattle: acacias of Australia. Australian Biological Resources Study, Canberra. Department of Conservation and Land Management, Perth.
  • Moore, J.H. & Wheeler, J. (2008) Southern weeds and their control. DAFWA Bulletin 4744.
  • Navie, S. & Adkins, S. (2008) Environmental Weeds of Australia, An interactive identification and information resource for over 1000 invasive plants. Centre for Biological Information Technology, The University of Queensland.
  • Peltzer, S. (2008) Watch out for weedy wattles. Southcoast NRM, Department of Agriculture and Food.
  • Richardson, D.M. & Klugeb, R.L. (2008) Seed banks of invasive Australian Acacia species in South Africa: Role in invasiveness and options for management. Perspectives in Plant Ecology, Evolution and Systematics, 10 (3): 161-177.
  • Whibley, D.J.E. & Symon, D.E. (1992) Acacias of South Australia. The Flora and Fauna of South Australia Handbooks Committee, Adelaide.