Populus nigra L.
Sp.Pl. 1034 (1753)

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

Brief Description
Amanda Spooner, Monday 19 May 2003

Tree, to 10 m high. White sand over clay, gritty sandy clay over granite. Fringing rivers and along creeklines.

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

General Biology. Growth form. Tree. Reproduction. Root suckers, possibly seed. Dispersal. Local dispersal by root suckers. Any seed produced is dispersed widely by wind and water. Vegetative regeneration strategy. Resprouts, produces root suckers, stem layering. Woody structure. Diffuse porous. Seedbank persistence. Possibly little viable seed produced.

Notes. Var. italica is naturalised in Western Australia. Deciduous in winter. Male and female flowers occur on separate trees (dioecious). Rarely recruits from seed in Australia.

Additional information. Origin. Europe, north-western Africa, western and northern Asia. History of use/introduction. Garden escape.

Suggested method of management and control. Apply 250 ml Access® in 15 L of diesel to bottom 50 cm of trunk (basal bark) or stem inject with 50% glyphosate. Treat when actively growing. 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              
Active Growth Y Y           O Y Y Y Y  
Dormant     O Y Y Y Y O          
Optimum Treatment 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.
  • Converse, C.K. (1987) Element Stewardship Abstract for Populus spp (North American invasive poplars/aspens). The Nature Conservancy, Arlington, USA. URL: http://tncweeds.ucdavis.edu/esadocs.html - Accessed December 2007.
  • 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