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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Monday, 2 March 2026 +08:00.

Axonopus affinis Chase

This name is not current. Find out more information on related names.

Reference
J.Wash.Acad.Sci. 28:180 (1938)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Not Current

Stoloniferous perennial, grass-like or herb, 0.15-0.6 m high. Fl. green/purple, Oct to Dec or Jan to Mar. Moist clay.

Grazyna Paczkowska, Descriptive Catalogue, 22 October 1993

Management Notes (for the Swan NRM Region)

Alternative Names. Mat grass, durrington grass.

General Biology. Growth form. Grass. Life form. Perennial, rhizomatous/stoloniferous. Reproduction. Seed, rhizomes and stolons. Dispersal. Wind, water movement, vehicles, grazing animals. Photosynthetic Pathway. C4. Seedbank persistence. Short, days to 1 year. Fire response. Fire is rare in its natural habitat, however plants quickly recover and resprout.

Notes. Naturalised in Africa, Asia, other parts of Australia and the Pacific Islands. Prefers sandy, moist soils and tolerant of heavy soils, low pH and poor fertility. Does not withstand prolonged flooding. Has poor drought resistance and moderate shade tolerance. Rapidly spreads by stolons and rhizomes under favourable conditions and produces prolific lightweight seed. Can withstand heavy defoliation and grazing.

Additional information. Origin. Tropical America. History of use/introduction. Widely used in the United States to prevent erosion and stabilise road embankments, pasture, lawns. Similar exotic species. Axonopus fissifolius.

Suggested method of management and control. Spray when actively growing from spring to autumn with 13 ml/L Fusilade® Forte + wetting agent. 2,2_DPA at 4.8 kg/ha may also be effective. 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
Dormant         Y Y Y Y Y        
Active Growth Y Y Y           O O Y Y  
Germination                   Y Y Y  
Flowering Y Y Y Y         Y Y Y Y  
Fruiting   Y Y Y                  
Optimum Treatment Y Y                 Y Y  

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

 

References

  • Baskin, C.C. & Baskin, J.M. (1998) Ecology of seed dormancy and germination in grasses. In Population biology of grasses (ed. G.P. Cheplick) . Cambridge University Press, Cambridge, UK.
  • Brown, K. & Brooks, K. (2002) Bushland Weeds: A Practical Guide to their Management. Environmental Weeds Action Network, Greenwood.
  • Food and Agriculture Organisation of the UN (2009) Axonopus affinis Chase, species profile. URL: www.fao.org/ag/AGP/AGPC/doc/gbase/DATA/pf000179.htm - Accessed August 2009.
  • 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.
  • Moore, C.B. & Moore, J.H. (2002) Herbiguide, the pesticide expert on a disk. Herbiguide, PO Box 44 Albany, Western Australia, 6330.
  • Murtagh, G.J. (1977) Use of herbicide to reduce grass competition in a white clover sward. Tropical grasslands, 11 (2): 121-124.
  • Tropical Forages (2009) Axonopus fissifolius. URL: www.tropicalforages.info/key/Forages/Media?Html/Axonopus_fissifolius.htm - Accessed August 2009.
  • United States Department of Agriculture (2001) The Plants Database, Version 3.1. URL: http://plants.usda.gov - Accessed December 2007. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.