Malodorous cormous, perennial, herb, to 0.6 m high. Fl. purple-black-brown, Jul to Nov. Grey sand, loam, limestone. A garden escape, dunes, road verges, wasteland.
Beard’s Provinces: South-West Province.
IBRA Regions: Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain.
IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Geraldton Hills, Perth, Southern Jarrah Forest.
Local Government Areas (LGAs): Armadale, Bridgetown-Greenbushes, Cambridge, Capel, Chapman Valley, Goomalling, Mandurah, Northampton, Stirling, Three Springs, Wanneroo, Waroona, Wickepin.
General Biology. Growth form. Geophyte. Life form. Perennial corm. Reproduction. Primarily corms, also seed. Dispersal. Soil movement, water. Time to first flowering. 2 years. Seedbank persistence. Short, 1 year. Fire response. Generally survives fire.
Notes. Flowers last for one day only. Produces seed from self pollination. Pollinated by flies. Flowers produce a strong pungent scent. Each year plants produce new corms that are added to a column of dormant corms produced in previous years. There can be 15-20 corms in a single column.
Additional information. Origin. South Africa. History of use/introduction. Garden escape.
Suggested method of management and control. Hand remove very small populations in degraded sites. Sift soil to find all corms. Spray 2,2 DPA 10 g/L + Pulse® when flowering. In degraded sites try glyphosate 1% + metsulfuron methyl 0.2 g/15 L + Pulse®. Takes a number of years to control populations. 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.
Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.
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Western Australian Herbarium (1998–). FloraBase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/