Sparaxis bulbifera (L.) Ker Gawl.
K.D.Koenig & Sims, Ann.Bot. 1:225 (1804)

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

Brief Description
Amanda Spooner, Thursday 16 August 2007

Cormous, perennial, herb, to 0.7 m high. Fl. white-cream-yellow-purple, Sep to Oct. Brown clay loam,grey-white sandy clay, gravel, granite, limestone. Flood plains, valley slopes, along drains, roadsides.

Distribution

Beard’s Provinces: South-West Province.

IBRA Regions: Avon Wheatbelt, Jarrah Forest, Swan Coastal Plain, Warren.

IBRA Subregions: Avon Wheatbelt P2, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.

IMCRA Regions: Leeuwin-Naturaliste.

Local Government Areas (LGAs): Albany, Augusta-Margaret River, Bridgetown-Greenbushes, Busselton, Canning, Capel, Chittering, Cranbrook, Dardanup, Donnybrook-Balingup, Gingin, Gosnells, Kalamunda, Katanning, Manjimup, Mundaring, Perth, Plantagenet, Serpentine-Jarrahdale, Stirling, Swan, Wanneroo, Waroona, York.

Management Notes (for the Swan NRM Region)
Kate Brown and Karen Bettink, Thursday 21 December 2017

General Biology. Growth form. Geophyte. Life form. Annually renewed corm. Reproduction. Primarily seed, occasionally offsets and cormels on stems. Dispersal. Water, soil. Time to first flowering. 2-3 years. Seedbank persistence. Less than one year. Fire response. Generally survives fire.

Additional information. Origin. South Africa.

Suggested method of management and control. Spot spray metsulfuron methyl 0.2 g/15 L + Pulse® or 2.5-5 g/ha + Pulse® . Apply just on flowering at corm exhaustion. 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 Y Y Y Y      
Flowering                 Y Y      
Germination       Y Y Y Y Y          
Optimum Treatment                 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.
  • Brown, K. & Brooks, K. (2003) Sparaxis bulbifera (Iridaceae) invading a clay based wetland on the Swan Coastal Plain - control methods and observations on the reproductive biology. Plant Protection Quarterly, 18 (1): 26-30.
  • Brown, K. & Paczkowska, G. (2008) Seed biology of two invasive South African geophytes and implications for natural area management. Ecological Management & Restoration, 9 (3): 232-234.
  • 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.
  • Manning, J., Goldblatt, P. & Snijman, D. (2002) The color encyclopedia of Cape bulbs. Timber Press, Portland, USA.
  • Moore, C.B. & Moore, J.H. (2002) Herbiguide, the pesticide expert on a disk. Herbiguide, PO Box 44 Albany, Western Australia, 6330.

Project information and acknowledgements