- Reference
- Linnaea 7:496 (1832)
- Conservation Code
- Not threatened
- Naturalised Status
- Alien to Western Australia
- Name Status
- Current
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.
Distribution
- IBRA Regions
- Avon Wheatbelt, Esperance Plains, Jarrah Forest, Swan Coastal Plain.
- IBRA Subregions
- Dandaragan Plateau, Fitzgerald, Katanning, 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.
Management Notes (for the Swan NRM Region)
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.
Management Calendar
| Calendar Type | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Comments |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Germination | U | U | U | U | |||||||||
| Active Growth | Y | Y | Y | Y | Y | Y | |||||||
| Flowering | Y | ||||||||||||
| Fruiting | U | U | |||||||||||
| Optimum Treatment | U | U | U | U | U |
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.
- Keighery, G.J. (1999) Predicting and preventing the West’s environmental weeds of the next century. In Proceedings of the 12th Australian Weeds Conference, Hobart (eds. A.C. Bishop, M. Boersma and C.D. Barnes). Tasmanian Weed Society, Davenport.
- Parsons, J.M. (ed.) (1995) The Australian weed control handbook. 10th Edition. Inkata Press, Melbourne.