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The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

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Canna ×generalis L.H.Bailey

Reference
Gentes Herb. 1:118 (1923)
Conservation Code
Not threatened
Naturalised Status
Alien to Western Australia
Name Status
Current

Rhizomatous, perennial, herb, 1-2.5 m high, a hybrid of horticultural origin. Fl. yellow, Nov to Dec or Jan to Mar. Black mud/sand, loam. Wet areas.

Amanda Spooner, Descriptive Catalogue, 8 September 1999

Distribution

IBRA Regions
Dampierland, Swan Coastal Plain, Warren.
IBRA Subregions
Dandaragan Plateau, Perth, Pindanland, Warren.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Bayswater, Broome, Dardanup, Gingin, Manjimup, Perth, Stirling.

Management Notes (for the Swan NRM Region)

Alternative Names. Canna, Indian Shot, Common Garden Canna.

General Biology. Growth form. Herb. Life form. Perennial. Reproduction. Rhizome, possibly seed. Dispersal. Soil, birds, garden refuse, plantings.

Notes. Prefers rich, fertile soils. Of hybrid origin.

Additional information. Origin. Tropical America. History of use/introduction. Ornamental.

Suggested method of management and control. Hand pull small infestations. Otherwise, cut stems to ground level and paint using 10% 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           U U U          
Active Growth O O       Y Y Y Y Y Y O  
Flowering Y Y Y               Y Y  
Fruiting             U U U        
Manual Removal Y Y Y Y Y Y Y Y Y Y Y Y  
Herbicide Treatment O O O O O Y Y Y 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.
  • Pacific Island Ecosystems at Risk (2008) Plant threats to Pacific ecosystems. URL: http://www.hear.org/pier/scinames.htm - Accessed January 2010.
  • Russell, A. (Undated) Perennial flowers: Canna x generalis. NC State University URL: http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/perennials/Cannage.htm - Accessed August 2010.
  • 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.