Acacia pycnantha Benth. Golden Wattle
London J.Bot. 1:351 (1842)

Conservation Code: Not threatened
Naturalised Status: Alien to Western Australia
Name Status: Current

Brief Description
Amanda Spooner, Wednesday 13 August 1997

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

Distribution

Beard’s Provinces: Eremaean Province, South-West Province.

IBRA Regions: Avon Wheatbelt, Coolgardie, Esperance Plains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.

IBRA Subregions: Avon Wheatbelt P2, Eastern Goldfield, Eastern Mallee, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren, Western Mallee.

IMCRA Regions: WA South Coast.

Local Government Areas (LGAs): Albany, Bridgetown-Greenbushes, 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)
Kate Brown and Karen Bettink, Thursday 21 December 2017

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.

Project information and acknowledgements