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Crepis foetida L.
Foetid Hawksbeard

Reference
Sp.Pl. [Linnaeus] 2:807-808 (1753)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Rosetted, erect annual or biennial, herb, to 0.45 m high. Fl. yellow-orange, Nov to Dec. Lateritic or sandy soils.

Amanda Spooner, Descriptive Catalogue, 26 March 2007

Distribution

IBRA Regions
Jarrah Forest, Swan Coastal Plain.
IBRA Subregions
Northern Jarrah Forest, Perth, Southern Jarrah Forest.
Local Government Areas (LGAs)
Armadale, Boddington, Bunbury, Cambridge, Donnybrook-Balingup, Gingin, Gosnells, Harvey, Kalamunda, Mundaring, Murray, Nannup, Perth, Serpentine-Jarrahdale, Stirling, Williams.

Management Notes (for the Swan NRM Region)

Alternative Names. Roadside Hawk's-beard.

General Biology. Growth form. Herb. Life form. Annual. Reproduction. Seed. Dispersal. Wind.

Notes. Can be biennial. Early growth is enhanced by leaf litter and by neighbouring plants, however in later stages competition can suppress growth and reproduction.

Additional information. Origin. Temperate Asia, Europe.

Suggested method of management and control. Spot spray 1% glyphosate + Pulse® or Lontrel® 10 ml/10 L + Pulse®. 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
Germination         Y Y Y            
Active Growth           Y Y Y Y Y Y    
Flowering Y                   Y Y  
Fruiting Y Y                   O  
Herbicide Treatment             Y Y Y O      

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.
  • Moore, C.B. & Moore, J.H. (2002) Herbiguide, the pesticide expert on a disk. Herbiguide, PO Box 44 Albany, Western Australia, 6330.
  • Swarbrick, J.T. & Skarratt, D.B. (1994) The bushweed 2 database of environmental weeds in Australia. The University of Queensland, Gatton College.
  • USDA, ARS, National Genetic Resources Program (2009) Germplasm Resources Information Network - (GRIN). National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomysimple.aspx - Accessed October 2009.
  • Violle, C., Richarte, J. & Navas, M. (2006) Effects of litter and standing biomass on growth and reproduction of two annual species in a Mediterranean old-field. Journal of Ecology, 94 (1): 196-205.