Brachychiton populneus (Schott & Endl.) R.Br. Kurrajong
Pl.Jav.Rar. 234 (1844)

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

Brief Description
Amanda Spooner, Tuesday 21 September 1999

Tree, 3-7(-20) m high. Fl. green-cream/white, Dec.


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

IBRA Regions: Avon Wheatbelt, Coolgardie, Jarrah Forest, Swan Coastal Plain.

IBRA Subregions: Avon Wheatbelt P2, Northern Jarrah Forest, Perth, Southern Cross.

Local Government Areas (LGAs): Capel, Chittering, Murray, Northam, Serpentine-Jarrahdale, Yilgarn.

Management Notes (for the Swan NRM Region)
Kate Brown and Karen Bettink, Monday 26 August 2019

General Biology. Growth form. Tree. Reproduction. Seed. Dispersal. Birds, rats and possibly other mammals. Time to first flowering. Possibly 8+ years. Vegetative regeneration strategy. Resprouts. Woody structure. Diffuse porous. Seedbank persistence. Short, days-1 year. Fire response. Can resprout from basal dormant buds following fire.

Notes. Semi deciduous in winter.

Additional information. Origin. Eastern Australia. History of use/introduction. Garden escape, planted as a street tree.

Suggested method of management and control. Hand pull seedlings. For mature plants try stem injection with 50-100% glyphosate or apply 250 ml Access® in 15 L of diesel to basal 50 cm of trunk (basal bark) or cut and paint with 50% glyphosate. 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 Y            
Optimum Treatment Y Y Y Y         Y Y Y Y  

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



  • Brown, K. & Brooks, K. (2002) Bushland Weeds: A Practical Guide to their Management. Environmental Weeds Action Network, Greenwood.
  • Buist, M., Yates, C.J. & Ladd, P.G. (2000) Ecological characteristics of Brachychiton populneus (Sterculiaceae) (kurrajong) in relation to the invasion of urban bushland in south-western Australia. Austral Ecology, 25: 487-496.
  • 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.
  • 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.

Project information and acknowledgements