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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.

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Dischisma capitatum Choisy
Woolly-headed Dischisma

Reference
Mém.Soc.Phys.Genéve 2(2):94-95 (1823)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Erect or ascending annual, herb, 0.05-0.2(-0.5) m high. Fl. white, Aug to Sep. Sandy or peaty soils. Creek & swamp edges.

Amanda Spooner, Descriptive Catalogue, 2 January 1997

Distribution

IBRA Regions
Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain.
IBRA Subregions
Dandaragan Plateau, Geraldton Hills, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth.
IMCRA Regions
Central West Coast.
Local Government Areas (LGAs)
Bayswater, Busselton, Carnamah, Chittering, Coorow, Dandaragan, Gingin, Melville, Mingenew, Mundaring, Nedlands, Northampton, Perth, Quairading, Rockingham, Serpentine-Jarrahdale, Stirling, Swan, Victoria Plains, Wanneroo.

Management Notes (for the Swan NRM Region)

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

Notes. Grows further inland than Dischisma arenarium, on sandy or peaty soils. Germination of seed is stimulated by smoke and is generally higher in darkness.

Additional information. Similar exotic species. Dischisma arenarium.

Suggested method of management and control. Spot spray 0.2% 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
Germination         Y Y              
Active Growth           Y Y Y Y Y Y    
Flowering               Y Y        
Fruiting                   Y      
Herbicide Treatment             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.
  • Keeley, J.E. & Bond, W.J. (1997) Convergent seed germination in South African fynbos and Californian chaparral. Plant Ecology, 133: 153-167.