Annual, grass-like or herb (sedge), c. 0.025 m high, spikelets squarrose, glumes with an awn at least as long as its body; stamens 1-2; style 3-branched. Fl. green, Nov. Winter-wet clay flats.
Beard’s Provinces: South-West Province.
IBRA Regions: Avon Wheatbelt, Esperance Plains, Jarrah Forest, Swan Coastal Plain.
IBRA Subregions: Avon Wheatbelt P2, Dandaragan Plateau, Fitzgerald, Northern Jarrah Forest, Perth, Southern Jarrah Forest.
Local Government Areas (LGAs): Albany, Gingin, Gosnells, Jerramungup, Moora, Murray, Serpentine-Jarrahdale, Swan, Victoria Plains, Wagin, Waroona, West Arthur.
General Biology. Growth form. Herb. Life form. Annual. Reproduction. Seed. Dispersal. Wind, machinery.
Notes. Forms dense monspecific stands. Becoming increasingly common in clay-based wetlands on the eastern side of the Swan Coastal Plain. Could pose a major threat to wetland habitats throughout Western Australia.
Additional information. Origin. South Africa.
Suggested method of management and control. Try spot spraying 10 ml/L glyphosate while plants are actively growing. Use Roundup Biactive® where surface water is present. 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/